Tailwind CSS v3 color

Tailwind orange-700 #C2410C

Tailwind CSS v3's orange-700 is #C2410C. It is a vivid red in the red family. In OKLCH it sits at lightness 0.553, chroma 0.174 and hue 38.4°. The nearest CSS named color is sienna (#A0522D), ΔE2000 7.9 away.

Relative luminance
0.1528
OKLCH L · C · h
0.553 · 0.174 · 38.4
Best text
White 5.17:1
Hue family
Red
Inspect this color Check contrast

#C2410C color codes

HEX
#C2410C
RGB
rgb(194, 65, 12)
HSL
hsl(17, 88%, 40%)
OKLCH
oklch(0.553 0.174 38.4)
OKLab
oklab(0.553 0.136 0.108)
CIELAB (D65)
L* 46.02, a* 49.63, b* 53.96
XYZ (D65)
X 24.21, Y 15.28, Z 2.02
CMYK (naive)
cmyk(0%, 66%, 94%, 24%)

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 #C2410C accessible?

White text on it reaches 5.17:1, passing AA. Black text manages only 4.05:1, enough for large text only.

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

    4.05:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc +29

  • White text on it

    5.17:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc −79

  • As text on black

    4.05:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc −27

  • As text on white

    5.17:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc +74

Nearest versions that pass 4.5:1

  • For text on white

    #C2410C 5.17:1

    It already reaches 5.17:1 on white, so no change is needed.

  • For text on black

    #CB4919 4.50:1

    Lightening its OKLCH lightness from 0.55 to 0.58 reaches 4.50:1 on black, keeping the hue.

    Compare both in the Contrast System

Checking another pair? Use the Contrast Checker.

Studio

Adjust #C2410C 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 #C2410C

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #C2410C sits at step 600.

  1. 50#FFF2EE
    White
    1.09
    Black
    19.18
  2. 100#FFE5DC
    White
    1.20
    Black
    17.49
  3. 200#FFC9B8
    White
    1.46
    Black
    14.29
  4. 300#FFA385
    White
    1.93
    Black
    10.82
  5. 400#F8754B
    White
    2.74
    Black
    7.63
  6. 500#D9572A
    White
    3.92
    Black
    5.34
  7. 600This color#C2410C
    White
    5.17
    Black
    4.05
  8. 700#992E00
    White
    7.64
    Black
    2.74
  9. 800#712000
    White
    11.00
    Black
    1.90
  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. 700This color#C2410C
    White
    5.17
    Black
    4.05
  9. 800#9A3412
    White
    7.30
    Black
    2.87
  10. 900#7C2D12
    White
    9.37
    Black
    2.24
  11. 950#431407
    White
    15.65
    Black
    1.34

Gamut

How vivid #C2410C can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.180; #C2410C uses 97% of it. Display P3, which many recent phones and laptops show, reaches 0.203 there: 13% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.174
sRGB edge
0.180
Display P3 edge
0.203
Rec. 2020 edge
0.203
Dominant wavelength
600 nm
Excitation purity
87%
Chromaticity
x 0.5832, y 0.3681
  • This color#C2410C
  • Most vivid in sRGB#C43E00
  • Most vivid in Display P3oklch(0.553 0.203 38.4)

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

Use the wider color where screens show it
.accent {
  color: #c2410c;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.7403 0.2437 0); }
}

Mixing

Mixing #C2410C

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%#E1A086
  • OKLab50%#E7A38E
  • OKLCH50%#E7A38E

Black #000000

  • sRGB50%#612106
  • OKLab50%#491302
  • OKLCH50%#491302

Its complement #008099

  • sRGB50%#616153
  • OKLab50%#876C63
  • OKLCH50%#5B8115
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #c2410c, white);
color: color-mix(in oklch, #c2410c 50%, white);

In use

#C2410C 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, 4.5:15.17:1 Passes
  • Link and body-size textText, 4.5:15.17:1 Passes
  • Large headingLarge text, 3:15.17:1 Passes
  • Icons, borders and focus ringsNon-text, 3:15.17:1 Passes

Dark page

  • Button labelText, 4.5:15.17:1 Passes
  • Link and body-size textText, 4.5:13.61:1 Fails
  • Large headingLarge text, 3:13.61:1 Passes
  • Icons, borders and focus ringsNon-text, 3:13.61:1 Passes

For text on this page, the nearest shade that passes is #D55326 4.54:1

Color vision

How #C2410C looks with color blindness

Deuteranopia changes it most, ΔE2000 33.8; tritanopia changes it least, 15.0.

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

    #685B00 ΔE2000 32.2

    Distinct

    Reads as dark muted brown

  • Deuteranopia

    No working green (medium-wavelength) cones

    #877800 ΔE2000 33.8

    Distinct

    Reads as soft yellow

  • Tritanopia

    No working blue (short-wavelength) cones

    #D61538 ΔE2000 15.0

    Distinct

    Reads as vivid red

  • Achromatopsia

    No cone color vision; lightness only

    #6D6D6D ΔE2000 27.7

    Distinct

    Reads as gray

Pairing check

Checked against its complement, #008099. Their lightness contrast is only 1.12:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#C2410C · #00809947.6Stays distinct
Protanopia#685B00 · #707C9A40.3Stays distinct
Deuteranopia#877800 · #5E6F9945.2Stays distinct
Tritanopia#D61538 · #00888858.1Stays distinct
Achromatopsia#6D6D6D · #7575753.2Easily confused

Harmony

Color harmonies for #C2410C

Its complement is #008099, a 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#C2410C
  • Complement#008099

Complementary

Open in Harmony Studio
  • −30°#C1385E
  • Base#C2410C
  • +30°#A06300

Analogous

Open in Harmony Studio
  • Base#C2410C
  • +120°#008855
  • +240°#5F61D5

Triadic

Open in Harmony Studio
  • Base#C2410C
  • +150°#00847D
  • +210°#0076C5

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-700: #c2410c;
}

Tailwind config

// tailwind.config.js — already built in as orange-700;
// pin the v3 value explicitly like this:
module.exports = {
  theme: {
    extend: {
      colors: {
        orange: { 700: '#c2410c' },
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  /* v4 has its own orange-700; this pins the v3 value. */
  --color-orange-700: oklch(0.553 0.174 38.4);
}

Design token (W3C DTCG)

{
  "color": {
    "orange-700": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.7608, 0.2549, 0.0471],
        "hex": "#c2410c"
      },
      "$description": "Tailwind CSS v3 orange-700"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let orange700 = Color(.sRGB, red: 0.761, green: 0.255, blue: 0.047, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Orange700 = Color(0xFFC2410C)
}

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 #C2410C in the tools

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