How-to
How to Mix Henna and Indigo for Brown Hair (The One-Step Method)
Yes, you can mix henna and indigo together for brown hair. Rest the henna 3–4 hours (ideally 8), mix the indigo fresh with a pinch of salt, combine them at 70:30, 50:50 or 30:70 henna to indigo and leave it on for 1–2 hours.
The short answer: yes, you can mix henna and indigo powder together: that's the one-step method for brown hair. Mix the henna with warm water and let it rest 3–4 hours (ideally 8). When you're ready, mix the indigo fresh with warm water and a pinch of salt, stir the two together at 70:30 henna to indigo for light brown, 50:50 for medium brown or 30:70 for dark brown, and apply straight away. Leave it on for 1–2 hours, then rinse with water.
Henna and indigo ratios for brown hair
| For | Henna : indigo | Per 100 g of powder | What to expect |
|---|---|---|---|
| Light brown | 70 : 30 | 70 g henna + 30 g indigo | A warm light brown, can read copper-brown |
| Medium brown | 50 : 50 | 50 g henna + 50 g indigo | A balanced brown |
| Dark brown | 30 : 70 | 30 g henna + 70 g indigo | A deeper, cooler brown |
More henna gives a warmer, lighter brown; more indigo gives a cooler, darker one. These are starting points, not guaranteed shades, because your starting color, how much gray you have and your hair's history all change the result. Strand test a hidden lock with your chosen ratio first. For black, a one-step mix isn't enough: that's a two-step method. Covering grays without a box dye? Our gray hair guide shows which method gives which shade.
What each ratio usually gives on your starting color
| Starting color | 70 : 30 | 50 : 50 | 30 : 70 |
|---|---|---|---|
| White or gray | Warm light brown | Medium brown | Dark brown |
| Blonde | Warm light brown | Medium brown | Medium to dark brown |
| Light brown | Richer, warm light brown | Medium brown | Darker brown |
| Dark brown | Warmer, richer brown | Deeper brown | Dark to very dark brown |
| Black | Little visible change | Little visible change | Little change, or a slightly deeper tone |
Can I mix henna and indigo powder together?
Yes, as long as you prepare them differently. Henna needs to rest for its dye to become available. Indigo is the opposite: it works best mixed fresh and used at once, and it loses strength if it sits. So you rest the henna first, then mix the indigo at the last minute and combine the two pastes. The pinch of salt goes in the indigo every time. For indigo on its own, including why the salt goes in and how long to leave it, see how to use indigo powder for hair.
Together they make brown because they do different jobs. Henna lays down warm copper-red and indigo adds cool blue. On your hair the two balance out to brown, and the ratio decides how warm or dark it looks.
Can I apply henna and indigo in one step?
Yes, for brown. That's exactly what this method is: one application of the combined paste. For black or very dark brown, especially on gray, you apply henna first and then an indigo-rich second step.
How to mix henna and indigo, step by step
Before you start, patch test 24–48 hours ahead with a little of the finished mix on a small patch of skin, and don't go ahead if the skin burns, swells, blisters or turns red, or if it itches and the itch doesn't settle. A strand test shows you the brown before you do your whole head.
- Measure the powders for your ratio, making enough paste to coat every strand thickly. Long or thick hair needs more.
- Mix the henna with comfortably warm water in a non-metallic bowl to a smooth paste like thick yogurt. Cover it and rest it 3–4 hours, ideally 8.
- Prepare your hair. Start with clean hair with no oil or product on it, dry or slightly damp. Put petroleum jelly along your hairline, ears and neck, keeping it off the hair, and wear gloves.
- Mix the indigo only now. Stir it with comfortably warm water and a pinch of salt to a smooth paste. Don't let it sit.
- Combine and apply at once. Stir the fresh indigo into the rested henna until the color is even, then apply it section by section from roots to ends, covering grays completely.
- Cover and wait 1–2 hours. Use a shower cap or damp towel to keep the paste moist. At least 1 hour, no more than 2.
- Rinse with water only. No shampoo or oil for 24 hours; conditioner is fine.
What to expect after rinsing
Straight after rinsing the color can look warmer or slightly uneven, and on very light hair it can look a little green. Plant color keeps settling as it meets the air, so judge it after a day or two, once your hair is dry. If the brown is too warm, use more indigo next time (70:30 to 50:50, or 50:50 to 30:70). If it's too dark, use more henna next time and color only new growth. For how henna alone looks on each starting color, see our henna page.
Which is better, henna or indigo?
Neither: they do different jobs. Henna gives copper to red and is the warm base; indigo adds the cool blue that turns that warmth brown or black. For copper, use henna alone (see how to use henna powder). For any brown or black, you need both.
Can I apply indigo without henna?
Sometimes, but it depends on what's underneath. Indigo alone works most predictably on hair that's already dark or already hennaed, where there's warm color for it to deepen. On virgin brown hair it cools and deepens the shade, often subtly and sometimes unevenly.
What happens if you apply indigo without henna?
On gray, white or blonde hair, indigo alone tends to look blue, green or patchy, because nothing warm is there to balance it. On black hair you'll see little change beyond a cool sheen in strong light. That's why the brown and black methods always include henna.
What helps henna get darker?
Henna on its own usually deepens over 24–48 hours after rinsing, but it only gets as dark as a rich copper-red or auburn, and it won't go brown on gray or light hair. To get darker, add indigo: that's what this mix is for. Beyond that, a full rest of 3–4 hours (ideally 8), enough paste and fresh, well-stored powder make the most difference. Lemon, coffee and tea don't reliably darken henna. For what Amla, Aloe Vera Powder and other add-ins do, see what to mix with henna.
How often can I use henna and indigo?
Whenever your roots need it, rather than on a schedule. Use the same ratio each time and apply it mainly to new growth. Putting the mix through your full length every time makes the lengths darker and cooler with each application.
Frequently Asked Questions
What is the best mix of henna and indigo for brown hair?
For a medium brown, start at 50:50. Go to 70:30 for a lighter, warmer brown or 30:70 for dark brown. The right ratio depends on your starting color, so strand test first.
How long do I leave henna and indigo on my hair?
At least 1 hour and no more than 2, covered so the paste stays moist. Leaving it longer isn't how to get a darker brown; a higher share of indigo is.
What happens if you put henna on dark brown hair?
Henna alone gives dark brown hair a deep auburn warmth, most visible in daylight, and it won't lighten it. For a cooler or darker brown, mix it with indigo at 30:70.
Can I use henna on brown hair?
Yes. Alone it turns brown hair auburn or red-brown. If you want the result to stay brown rather than red, mix it with indigo.
How can I make henna come out darker?
Mix it with indigo. Henna alone usually deepens as it settles over 24–48 hours, but it stays in the copper-red family; indigo is what takes it to brown.
Can I apply indigo the same day after henna?
Yes. In the two-step method for black, indigo goes on once the henna is rinsed out and your hair is dry or damp. The full method is in our guide to using indigo powder for black hair.
Which henna is better, black or brown?
Neither is pure henna, which only comes in copper-red. "Brown" and "black" hennas get their shade from other plants or dyes, and some "black henna" contains PPD, a synthetic dye that can cause severe allergic reactions. Check the ingredient list; our article on whether henna is bad for your hair has more.
