RAL Classic color

RAL 3000 Flame red #AF2B1E

RAL 3000 Flame red is shown here as #AF2B1E, a widely published sRGB approximation of the printed swatch. It is a vivid red in the red family. In OKLCH it sits at lightness 0.498, chroma 0.171 and hue 29.9°. The nearest CSS named color is firebrick (#B22222), ΔE2000 2.4 away.

Relative luminance
0.1094
OKLCH L · C · h
0.498 · 0.171 · 29.9
Best text
White 6.58:1
Hue family
Red

#AF2B1E color codes

HEX
#AF2B1E
RGB
rgb(175, 43, 30)
HSL
hsl(5, 71%, 40%)
OKLCH
oklch(0.498 0.171 29.9)
OKLab
oklab(0.498 0.148 0.085)
CIELAB (D65)
L* 39.48, a* 52.10, b* 39.96
XYZ (D65)
X 18.78, Y 10.94, Z 2.35
CMYK (naive)
cmyk(0%, 75%, 83%, 31%)

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.

RAL and RAL Classic are trademarks of RAL gGmbH, which this site is not affiliated with. The sRGB value is an approximation of the printed swatch; check a physical RAL color card before you specify a paint.

Legibility

Contrast: is #AF2B1E accessible?

White text on it reaches 6.58:1, passing AA. Black text manages only 3.18:1, 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

    3.18:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc +22
  • White text on it

    6.58:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc −86
  • As text on black

    3.18:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc −20
  • As text on white

    6.58:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc +81

Nearest versions that pass 4.5:1

  • For text on white

    #AF2B1E 6.58:1

    It already reaches 6.58:1 on white, so no change is needed.

  • For text on black

    #CD4839 4.58:1

    Lightening its OKLCH lightness from 0.50 to 0.58 reaches 4.58:1 on black, keeping the hue.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #AF2B1E 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 #AF2B1E

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #AF2B1E sits at step 700.

  1. 50#FFF2EF
    White
    1.09
    Black
    19.19
  2. 100#FFE4DF
    White
    1.20
    Black
    17.41
  3. 200#FFC9BF
    White
    1.46
    Black
    14.35
  4. 300#FFA192
    White
    1.95
    Black
    10.76
  5. 400#F87360
    White
    2.75
    Black
    7.61
  6. 500#DA5444
    White
    3.93
    Black
    5.33
  7. 600#BD3A2C
    White
    5.51
    Black
    3.80
  8. 700This color#AF2B1E
    White
    6.58
    Black
    3.18
  9. 800#7C0400
    White
    11.20
    Black
    1.87
  10. 900#540100
    White
    15.20
    Black
    1.38
  11. 950#320000
    White
    18.49
    Black
    1.13

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

Gamut

How vivid #AF2B1E can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.201; #AF2B1E uses 85% of it. Display P3, which many recent phones and laptops show, reaches 0.224 there: 12% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.171
sRGB edge
0.201
Display P3 edge
0.224
Rec. 2020 edge
0.223
Dominant wavelength
607 nm
Excitation purity
80%
Chromaticity
x 0.5856, y 0.3411
  • This color#AF2B1E
  • Most vivid in sRGB#BA0A00
  • Most vivid in Display P3oklch(0.498 0.224 29.9)

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

Use the wider color where screens show it
.accent {
  color: #af2b1e;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.6969 0.0525 0); }
}

Mixing

Mixing #AF2B1E

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%#D7958F
  • OKLab50%#DE9A8E
  • OKLCH50%#DE9A8E

Black #000000

  • sRGB50%#58160F
  • OKLab50%#410A05
  • OKLCH50%#410A05

Its complement #00707E

  • sRGB50%#584E4E
  • OKLab50%#795A55
  • OKLCH50%#5B6C00
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #af2b1e, white);
color: color-mix(in oklch, #af2b1e 50%, white);

In use

#AF2B1E 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, 4.5:16.58:1 Passes
  • Link and body-size textText, 4.5:16.58:1 Passes
  • Large headingLarge text, 3:16.58:1 Passes
  • Icons, borders and focus ringsNon-text, 3:16.58:1 Passes

Dark page

  • Button labelText, 4.5:16.58:1 Passes
  • Link and body-size textText, 4.5:12.84:1 Fails
  • Large headingLarge text, 3:12.84:1 Fails
  • Icons, borders and focus ringsNon-text, 3:12.84:1 Fails

For text on this page, the nearest shade that passes is #D55140 4.53:1

Color vision

How #AF2B1E looks with color blindness

Deuteranopia changes it most, ΔE2000 35.6; tritanopia changes it least, 6.6.

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

    #544A1B ΔE2000 32.3

    Distinct

    Reads as dark muted brown

  • Deuteranopia

    No working green (medium-wavelength) cones

    #746717 ΔE2000 35.6

    Distinct

    Reads as muted brown

  • Tritanopia

    No working blue (short-wavelength) cones

    #C1002A ΔE2000 6.6

    Noticeable

    Reads as vivid red

  • Achromatopsia

    No cone color vision; lightness only

    #5D5D5D ΔE2000 26.7

    Distinct

    Reads as dark gray

Pairing check

Checked against its complement, #00707E. Their lightness contrast is only 1.13:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#AF2B1E · #00707E47.2Stays distinct
Protanopia#544A1B · #646B7F31.3Stays distinct
Deuteranopia#746717 · #55617E37.8Stays distinct
Tritanopia#C1002A · #00767455.8Stays distinct
Achromatopsia#5D5D5D · #6565652.9Easily confused

Harmony

Color harmonies for #AF2B1E

Its complement is #00707E, a muted teal, 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#AF2B1E
  • Complement#00707E

Complementary

Open in Harmony Studio
  • −30°#A9285F
  • Base#AF2B1E
  • +30°#924F00
  • Base#AF2B1E
  • +120°#007734
  • +240°#3F56C2
  • Base#AF2B1E
  • +150°#007365
  • +210°#006A9C

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-ral-3000: #af2b1e;
}

Tailwind config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'ral-3000': '#af2b1e',
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  --color-ral-3000: oklch(0.498 0.171 29.9);
}

Design token (W3C DTCG)

{
  "color": {
    "ral-3000": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.6863, 0.1686, 0.1176],
        "hex": "#af2b1e"
      },
      "$description": "RAL 3000 Flame red (approximate sRGB)"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let ral3000 = Color(.sRGB, red: 0.686, green: 0.169, blue: 0.118, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Ral3000 = Color(0xFFAF2B1E)
}

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.

Tools

Open #AF2B1E in the tools

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