#B4402B#B4402B

#B4402B is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.1% C 0.155 H 32.5°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#B4402B
RGB	rgb(180, 64, 43)
HSL	hsl(9, 61%, 44%)
HSV	hsv(9, 76%, 71%)
CMYK	cmyk(0%, 64.4%, 76.1%, 29.4%)
CIE-LAB	lab(43.58, 45.93, 37.42)
CIE-LCH	lch(43.58, 59.24, 39.17°)
OKLab	oklab(53.11% 0.1307 0.0831)
OKLCH	oklch(53.11% 0.155 32.5)
XYZ	xyz(21.0941, 13.5475, 3.7892)
Luminance	0.1354 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4402B #2B9FB4

analogous

#B42B5A #B4402B #B4842B

triadic

#B4402B #2BB440 #402BB4

tetradic

#B4402B #5AB42B #2B9FB4 #842BB4

square

#B4402B #5AB42B #2B9FB4 #842BB4

split-complementary

#B4402B #2BB484 #2B5AB4

monochromatic

#511D13 #832E1F #B4402B #D35E49 #DF8A7A

Accessibility & contrast

On white

5.66

#B4402B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#B4402B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4402B

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4402B	#FFFFFF	#000000	##FFFFFF
##B4402B	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615728

Deuteranopia (green-blind)

#7D7027

Tritanopia (blue-blind)

#C6213C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b4402b;
/* rgb */ color: rgb(180, 64, 43);
/* oklch */ color: oklch(53.1% 0.155 32.5);

Tailwind

colors: {
  custom: {
    50: '#d27a65',
    500: '#b4402b',
    950: '#000000',
  },
}

SCSS

$custom: #b4402b;
$custom-light: #d27a65;
$custom-dark: #000000;

JSON

{
  "hex": "#b4402b",
  "rgb": {
    "r": 180,
    "g": 64,
    "b": 43
  },
  "hsl": {
    "h": 9.197,
    "s": 61.435,
    "l": 43.725
  },
  "oklch": {
    "l": 0.53109,
    "c": 0.15486,
    "h": 32.5
  },
  "luminance": 0.13545
}

Semantic roles & 50–950 ramp

primary

#B4402B

secondary

#73BBC7

accent

#CCE543

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B4402B

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

Preview Lab → · Contrast checker → · Palette generator →