#B4201D#B4201D

#B4201D is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.9% C 0.183 H 27.8°. Best body text is #FFFFFF at 6.64:1 contrast (WCAG AA passes).

Color values

HEX	#B4201D
RGB	rgb(180, 32, 29)
HSL	hsl(1, 72%, 41%)
HSV	hsv(1, 84%, 71%)
CMYK	cmyk(0%, 82.2%, 83.9%, 29.4%)
CIE-LAB	lab(39.29, 56.90, 40.67)
CIE-LCH	lch(39.29, 69.94, 35.56°)
OKLab	oklab(49.86% 0.1622 0.0856)
OKLCH	oklch(49.86% 0.183 27.8)
XYZ	xyz(19.5631, 10.8283, 2.2222)
Luminance	0.1082 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4201D #1DB1B4

analogous

#B41D65 #B4201D #B46B1D

triadic

#B4201D #1DB420 #201DB4

tetradic

#B4201D #65B41D #1DB1B4 #6B1DB4

square

#B4201D #65B41D #1DB1B4 #6B1DB4

split-complementary

#B4201D #1DB46B #1D65B4

monochromatic

#4B0D0C #7F1715 #B4201D #DE3430 #E66865

Accessibility & contrast

On white

6.64

#B4201D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#B4201D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4201D

6.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4201D	#FFFFFF	#000000	##FFFFFF
##B4201D	1.00	6.64	3.17	6.64
#FFFFFF	6.64	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51481A

Deuteranopia (green-blind)

#756814

Tritanopia (blue-blind)

#C70022

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b4201d;
/* rgb */ color: rgb(180, 32, 29);
/* oklch */ color: oklch(49.9% 0.183 27.8);

Tailwind

colors: {
  custom: {
    50: '#d56b5b',
    500: '#b4201d',
    950: '#000000',
  },
}

SCSS

$custom: #b4201d;
$custom-light: #d56b5b;
$custom-dark: #000000;

JSON

{
  "hex": "#b4201d",
  "rgb": {
    "r": 180,
    "g": 32,
    "b": 29
  },
  "hsl": {
    "h": 1.192,
    "s": 72.249,
    "l": 40.98
  },
  "oklch": {
    "l": 0.49862,
    "c": 0.18344,
    "h": 27.8
  },
  "luminance": 0.10825
}

Semantic roles & 50–950 ramp

primary

#B4201D

secondary

#61C9CB

accent

#EBEF39

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #B4201D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →