RAL Classic color

RAL 2004 Pure orange #F44611

RAL 2004 Pure orange is shown here as #F44611, a widely published sRGB approximation of the printed swatch. It is a vivid red in the red family. In OKLCH it sits at lightness 0.643, chroma 0.218 and hue 35.2°. The nearest CSS named color is orangered (#FF4500), ΔE2000 2.3 away.

Relative luminance
0.2365
OKLCH L · C · h
0.643 · 0.218 · 35.2
Best text
Black 5.73:1
Hue family
Red

#F44611 color codes

HEX
#F44611
RGB
rgb(244, 70, 17)
HSL
hsl(14, 91%, 51%)
OKLCH
oklch(0.643 0.218 35.2)
OKLab
oklab(0.643 0.178 0.125)
CIELAB (D65)
L* 55.75, a* 64.21, b* 63.21
XYZ (D65)
X 39.60, Y 23.66, Z 3.01
CMYK (naive)
cmyk(0%, 71%, 93%, 4%)

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 #F44611 accessible?

Black text on it reaches 5.73:1, passing AA. White text manages only 3.66:1, 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

    5.73:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc +41
  • White text on it

    3.66:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc −68
  • As text on black

    5.73:1

    • AA passes
    • AA large passes
    • AAA fails
    • APCA Lc −38
  • As text on white

    3.66:1

    • AA fails
    • AA large passes
    • AAA fails
    • APCA Lc +62

Nearest versions that pass 4.5:1

  • For text on white

    #DB3900 4.56:1

    Darkening its OKLCH lightness from 0.64 to 0.59 reaches 4.56:1 on white, keeping the hue.

  • For text on black

    #F44611 5.73:1

    It already reaches 5.73:1 on black, so no change is needed.

Checking another pair? Use the Contrast Checker.

Studio

Adjust #F44611 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 #F44611

Eleven OKLCH lightness steps at this hue, each with its contrast against white and black. #F44611 sits at step 500.

  1. 50#FFF2EE
    White
    1.09
    Black
    19.18
  2. 100#FFE4DD
    White
    1.20
    Black
    17.39
  3. 200#FFC9BB
    White
    1.46
    Black
    14.32
  4. 300#FFA28A
    White
    1.94
    Black
    10.78
  5. 400#FF6E49
    White
    2.77
    Black
    7.57
  6. 500This color#F44611
    White
    3.66
    Black
    5.73
  7. 600#C43200
    White
    5.52
    Black
    3.80
  8. 700#9E2600
    White
    7.68
    Black
    2.73
  9. 800#751900
    White
    11.07
    Black
    1.89
  10. 900#4E0E00
    White
    15.14
    Black
    1.38
  11. 950#2F0500
    White
    18.37
    Black
    1.14

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

Gamut

How vivid #F44611 can get

At its lightness and hue, sRGB reaches OKLCH chroma 0.225; #F44611 uses 97% of it. Display P3, which many recent phones and laptops show, reaches 0.253 there: 12% more.

0.00.20.40.60.80.20.40.60.8 460480500520540560580600620
  • sRGB
  • Display P3
  • Rec. 2020
  • Dominant wavelength
OKLCH chroma
0.218
sRGB edge
0.225
Display P3 edge
0.253
Rec. 2020 edge
0.253
Dominant wavelength
603 nm
Excitation purity
87%
Chromaticity
x 0.5976, y 0.3570
  • This color#F44611
  • Most vivid in sRGB#F74100
  • Most vivid in Display P3oklch(0.643 0.253 35.2)

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

Use the wider color where screens show it
.accent {
  color: #f44611;
}
@media (color-gamut: p3) {
  .accent { color: color(display-p3 0.9293 0.2581 0); }
}

Mixing

Mixing #F44611

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%#FAA388
  • OKLab50%#FFAB94
  • OKLCH50%#FFAD98

Black #000000

  • sRGB50%#7A2309
  • OKLab50%#5E1502
  • OKLCH50%#5E1502

Its complement #009EB8

  • sRGB50%#7A7265
  • OKLab50%#AA8278
  • OKLCH50%#779D00
In CSS
/* A gradient and a mix, worked out in OKLCH */
background: linear-gradient(in oklch, #f44611, white);
color: color-mix(in oklch, #f44611 50%, white);

In use

#F44611 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, 4.5:15.73:1 Passes
  • Link and body-size textText, 4.5:13.66:1 Fails
  • Large headingLarge text, 3:13.66:1 Passes
  • Icons, borders and focus ringsNon-text, 3:13.66:1 Passes

For text on this page, the nearest shade that passes is #DB3900 4.56:1

Dark page

  • Button labelText, 4.5:15.73:1 Passes
  • Link and body-size textText, 4.5:15.11:1 Passes
  • Large headingLarge text, 3:15.11:1 Passes
  • Icons, borders and focus ringsNon-text, 3:15.11:1 Passes

Color vision

How #F44611 looks with color blindness

Deuteranopia changes it most, ΔE2000 39.8; tritanopia changes it least, 13.7.

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

    #7C6D00 ΔE2000 38.2

    Distinct

    Reads as soft brown

  • Deuteranopia

    No working green (medium-wavelength) cones

    #A69400 ΔE2000 39.8

    Distinct

    Reads as light soft yellow

  • Tritanopia

    No working blue (short-wavelength) cones

    #FF003E ΔE2000 13.7

    Distinct

    Reads as vivid red

  • Achromatopsia

    No cone color vision; lightness only

    #868686 ΔE2000 29.8

    Distinct

    Reads as gray

Pairing check

Checked against its complement, #009EB8. Their lightness contrast is only 1.14:1, so where hue collapses, add a label, icon or pattern.

VisionThe pairΔE2000Verdict
Normal vision#F44611 · #009EB852.0Stays distinct
Protanopia#7C6D00 · #8C99B943.2Stays distinct
Deuteranopia#A69400 · #778AB847.6Stays distinct
Tritanopia#FF003E · #00A8A663.8Stays distinct
Achromatopsia#868686 · #9090903.5Easily confused

Harmony

Color harmonies for #F44611

Its complement is #009EB8, a soft cyan, 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#F44611
  • Complement#009EB8

Complementary

Open in Harmony Studio
  • −30°#F03C7B
  • Base#F44611
  • +30°#C77700
  • Base#F44611
  • +120°#00A861
  • +240°#6F7CFF
  • Base#F44611
  • +150°#00A396
  • +210°#0094E8

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-2004: #f44611;
}

Tailwind config

// tailwind.config.js
module.exports = {
  theme: {
    extend: {
      colors: {
        'ral-2004': '#f44611',
      },
    },
  },
};

Tailwind v4 theme

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

@theme {
  --color-ral-2004: oklch(0.643 0.218 35.2);
}

Design token (W3C DTCG)

{
  "color": {
    "ral-2004": {
      "$type": "color",
      "$value": {
        "colorSpace": "srgb",
        "components": [0.9569, 0.2745, 0.0667],
        "hex": "#f44611"
      },
      "$description": "RAL 2004 Pure orange (approximate sRGB)"
    }
  }
}

SwiftUI color

import SwiftUI

enum Palette {
    static let ral2004 = Color(.sRGB, red: 0.957, green: 0.275, blue: 0.067, opacity: 1)
}

Jetpack Compose color

import androidx.compose.ui.graphics.Color

object Palette {
    val Ral2004 = Color(0xFFF44611)
}

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 #F44611 in the tools

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