Tailwind CSS v3 color

Tailwind orange-900 #7C2D12

Tailwind CSS v3's orange-900 is #7C2D12. It is a dark soft brown in the brown family. In OKLCH it sits at lightness 0.408, chroma 0.116 and hue 38.2°. The nearest CSS named color is darkred (#8B0000), ΔE2000 6.8 away.

Relative luminance
0.0621
OKLCH L · C · h
0.408 · 0.116 · 38.2
Best text
White 9.37:1
Hue family
Brown
Inspect this color Check contrast

#7C2D12 color codes

HEX
#7C2D12
RGB
rgb(124, 45, 18)
HSL
hsl(15, 75%, 28%)
OKLCH
oklch(0.408 0.116 38.2)
OKLab
oklab(0.408 0.092 0.072)
CIELAB (D65)
L* 29.93, a* 32.93, b* 33.74
XYZ (D65)
X 9.36, Y 6.21, Z 1.28
CMYK (naive)
cmyk(0%, 64%, 85%, 51%)

CIELAB and XYZ use the D65 white point; CSS lab() uses D50, so paste the OKLCH or HEX value into stylesheets. CMYK here is a plain formula with no press profile.

Legibility

Contrast: is #7C2D12 accessible?

White text on it reaches 9.37:1, passing AAA. Black text fails at 2.24:1.

WCAG 2 gives the same ratio whichever color is the text; APCA does not, so its Lc changes sign and size with polarity.

Open the Contrast System

  • Black text on it

    2.24:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc +13

  • White text on it

    9.37:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc −95

  • As text on black

    2.24:1

    • AA fails
    • AA large fails
    • AAA fails
    • APCA Lc −11

  • As text on white

    9.37:1

    • AA passes
    • AA large passes
    • AAA passes
    • APCA Lc +90

Nearest versions that pass 4.5:1

  • For text on white

    #7C2D12 9.37:1

    It already reaches 9.37:1 on white, so no change is needed.

  • For text on black

    #B25D43 4.53:1

    Lightening its OKLCH lightness from 0.41 to 0.57 reaches 4.53:1 on black, keeping the hue.

    Compare both in the Contrast System

Checking another pair? Use the Contrast Checker.

Studio

Adjust #7C2D12 live

Move lightness, chroma and hue in OKLCH, or drag on the map. The map is every lightness and chroma at the current hue: sRGB inside the solid area, Display P3 out to the dashed line.

The studio needs JavaScript.

Scale

Shades and tints of #7C2D12

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #7C2D12 sits at step 800.

  1. 50#FFF2EE
    White
    1.09
    Black
    19.18
  2. 100#FFE5DC
    White
    1.20
    Black
    17.49
  3. 200#FFC9B9
    White
    1.46
    Black
    14.30
  4. 300#FBA58A
    White
    1.93
    Black
    10.85
  5. 400#DE876C
    White
    2.69
    Black
    7.78
  6. 500#C16B50
    White
    3.82
    Black
    5.48
  7. 600#A6543A
    White
    5.31
    Black
    3.95
  8. 700#8B3D24
    White
    7.52
    Black
    2.79
  9. 800This color#7C2D12
    White
    9.37
    Black
    2.24
  10. 900#4C1200
    White
    15.06
    Black
    1.39
  11. 950#2D0700
    White
    18.38
    Black
    1.14

Under each step, white and black text on it; a bold figure passes 4.5:1.

Tailwind CSS v3 orange scale

The real Tailwind palette, for comparison with the computed ramp above.

  1. 50#FFF7ED
    White
    1.06
    Black
    19.77
  2. 100#FFEDD5
    White
    1.14
    Black
    18.32
  3. 200#FED7AA
    White
    1.35
    Black
    15.51
  4. 300#FDBA74
    White
    1.68
    Black
    12.45
  5. 400#FB923C
    White
    2.26
    Black
    9.27
  6. 500#F97316
    White
    2.80
    Black
    7.49
  7. 600#EA580C
    White
    3.55
    Black
    5.89
  8. 700#C2410C
    White
    5.17
    Black
    4.05
  9. 800#9A3412
    White
    7.30
    Black
    2.87
  10. 900This color#7C2D12
    White
    9.37
    Black
    2.24
  11. 950#431407
    White
    15.65
    Black
    1.34

Gamut

How vivid #7C2D12 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.133; #7C2D12 uses 87% of it. Display P3, which many recent phones and laptops show, reaches 0.151 there: 13% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.116
sRGB edge
0.133
Display P3 edge
0.151
Rec. 2020 edge
0.151
Dominant wavelength
599 nm
Excitation purity
79%
Chromaticity
x 0.5557, y 0.3685
  • This color#7C2D12
  • Most vivid in sRGB#822500
  • Most vivid in Display P3oklch(0.408 0.151 38.2)

On a screen without Display P3 the last tile shows the sRGB edge instead.

Use the wider color where screens show it
.accent {
  color: #7c2d12;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.4901 0.1473 0); }
}

Mixing

Mixing #7C2D12

Each row is the same mix worked out in a different space, with the halfway color at its end. sRGB, which older CSS gradients use, can sag gray or dark in the middle; OKLab keeps the lightness steps even; OKLCH holds chroma and hue as it goes.

White #FFFFFF

  • sRGB50%#BE9689
  • OKLab50%#C19486
  • OKLCH50%#C19486

Black #000000

  • sRGB50%#3E1709
  • OKLab50%#2C0B02
  • OKLCH50%#2C0B02

Its complement #005364

  • sRGB50%#3E403B
  • OKLab50%#554641
  • OKLCH50%#3B5311
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #7c2d12, white);
color: color-mix(in oklch, #7c2d12 50%, white);

In use

#7C2D12 in an interface

A button, a link, a heading, a focused field, an icon and a chart line in this color, on a light page and a dark one. Each check is a WCAG 2 contrast minimum: 1.4.3 for text, 1.4.11 for the rest.

Light page

  • Button labelText, 4.5:19.37:1 Passes
  • Link and body-size textText, 4.5:19.37:1 Passes
  • Large headingLarge text, 3:19.37:1 Passes
  • Icons, borders and focus ringsNon-text, 3:19.37:1 Passes

Dark page

  • Button labelText, 4.5:19.37:1 Passes
  • Link and body-size textText, 4.5:11.99:1 Fails
  • Large headingLarge text, 3:11.99:1 Fails
  • Icons, borders and focus ringsNon-text, 3:11.99:1 Fails

For text on this page, the nearest shade that passes is #BA654A 4.50:1

Color vision

How #7C2D12 looks with color blindness

Deuteranopia changes it most, ΔE2000 25.9; tritanopia changes it least, 11.6.

Simulated with Machado et al. (2009) at full severity, in linear light.

Simulate a whole page What each type sees

  • Protanopia

    No working red (long-wavelength) cones

    #443B0E ΔE2000 24.1

    Distinct

    Reads as dark muted brown

  • Deuteranopia

    No working green (medium-wavelength) cones

    #574D0F ΔE2000 25.9

    Distinct

    Reads as dark muted brown

  • Tritanopia

    No working blue (short-wavelength) cones

    #891928 ΔE2000 11.6

    Distinct

    Reads as dark soft red

  • Achromatopsia

    No cone color vision; lightness only

    #464646 ΔE2000 23.9

    Distinct

    Reads as dark gray

Pairing check

Checked against its complement, #005364. Their lightness contrast is only 1.08:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#7C2D12 · #00536445.2Stays distinct
Protanopia#443B0E · #48506530.3Stays distinct
Deuteranopia#574D0F · #3C486435.6Stays distinct
Tritanopia#891928 · #00595847.9Stays distinct
Achromatopsia#464646 · #4B4B4B1.7Easily confused

Harmony

Color harmonies for #7C2D12

Its complement is #005364, a dark muted blue, on the cool side of the wheel.

Hue rotations in OKLCH, mapped into sRGB by trimming chroma so hue and lightness stay put.

Open the Harmony Studio
  • Base#7C2D12
  • Complement#005364

Complementary

Open in Harmony Studio
  • −30°#7B283E
  • Base#7C2D12
  • +30°#693F00

Analogous

Open in Harmony Studio
  • Base#7C2D12
  • +120°#005935
  • +240°#3D4087

Triadic

Open in Harmony Studio
  • Base#7C2D12
  • +150°#005651
  • +210°#004C82

Split-complementary

Open in Harmony Studio

Code

Design tokens

Ready-to-paste tokens in six formats. Rename them to fit your system.

CSS custom property

:root {
  --color-orange-900: #7c2d12;
}

Tailwind config

// tailwind.config.js — already built in as orange-900;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        orange: { 900: '#7c2d12' },
      },
    },
  },
};

Tailwind v4 theme

/* app.css — Tailwind CSS v4 */
@import "tailwindcss";

@theme {
  /* v4 has its own orange-900; this pins the v3 value. */
  --color-orange-900: oklch(0.408 0.116 38.2);
}

Design token (W3C DTCG)

{
  "color": {
    "orange-900": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.4863, 0.1765, 0.0706],
        "hex": "#7c2d12"
      },
      "$description": "Tailwind CSS v3 orange-900"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let orange900 = Color(.sRGB, red: 0.486, green: 0.176, blue: 0.071, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Orange900 = Color(0xFF7C2D12)
}

Matches

The nearest match in each system

The closest CSS name, Tailwind shade, RAL Classic paint and Crayola crayon by ΔE2000; under 2 is hard to tell apart side by side. RAL and Crayola values approximate physical colors.

Neighbors

The eight nearest colors on this site by ΔE2000, closest first. Under 2 is hard to tell apart side by side.

Tools

Open #7C2D12 in the tools

Each opens over this page. More colors live in the Color Library, and every color page is listed on the hub.