#B4401B#B4401B

#B4401B is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.158 H 37.1°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#B4401B
RGB	rgb(180, 64, 27)
HSL	hsl(15, 74%, 41%)
HSV	hsv(15, 85%, 71%)
CMYK	cmyk(0%, 64.4%, 85%, 29.4%)
CIE-LAB	lab(43.44, 45.38, 45.37)
CIE-LCH	lch(43.44, 64.17, 44.99°)
OKLab	oklab(52.96% 0.1262 0.0954)
OKLCH	oklch(52.96% 0.158 37.1)
XYZ	xyz(20.8560, 13.4523, 2.5351)
Luminance	0.1345 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4401B #1B8FB4

analogous

#B41B42 #B4401B #B48C1B

triadic

#B4401B #1BB440 #401BB4

tetradic

#B4401B #42B41B #1B8FB4 #8C1BB4

square

#B4401B #42B41B #1B8FB4 #8C1BB4

split-complementary

#B4401B #1BB48C #1B42B4

monochromatic

#4A1A0B #7F2D13 #B4401B #DF582D #E78262

Accessibility & contrast

On white

5.69

#B4401B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B4401B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4401B

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4401B	#FFFFFF	#000000	##FFFFFF
##B4401B	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625615

Deuteranopia (green-blind)

#7E7015

Tritanopia (blue-blind)

#C61F39

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b4401b;
/* rgb */ color: rgb(180, 64, 27);
/* oklch */ color: oklch(53.0% 0.158 37.1);

Tailwind

colors: {
  custom: {
    50: '#d37a5b',
    500: '#b4401b',
    950: '#000000',
  },
}

SCSS

$custom: #b4401b;
$custom-light: #d37a5b;
$custom-dark: #000000;

JSON

{
  "hex": "#b4401b",
  "rgb": {
    "r": 180,
    "g": 64,
    "b": 27
  },
  "hsl": {
    "h": 14.51,
    "s": 73.913,
    "l": 40.588
  },
  "oklch": {
    "l": 0.52959,
    "c": 0.15819,
    "h": 37.1
  },
  "luminance": 0.13449
}

Semantic roles & 50–950 ramp

primary

#B4401B

secondary

#5FB2CC

accent

#C4F137

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B4401B

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

Preview Lab → · Contrast checker → · Palette generator →