#B55831#B55831

#B55831 is a mid, vivid orange. Relative luminance 0.170; OKLCH L 56.7% C 0.132 H 42.2°. Best body text is #FFFFFF at 4.77:1 contrast (WCAG AA passes).

Color values

HEX	#B55831
RGB	rgb(181, 88, 49)
HSL	hsl(18, 57%, 45%)
HSV	hsv(18, 73%, 71%)
CMYK	cmyk(0%, 51.4%, 72.9%, 29%)
CIE-LAB	lab(48.30, 34.91, 39.35)
CIE-LCH	lch(48.30, 52.60, 48.43°)
OKLab	oklab(56.74% 0.0977 0.0886)
OKLCH	oklch(56.74% 0.132 42.2)
XYZ	xyz(23.1023, 17.0278, 4.9752)
Luminance	0.1703 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B55831 #318EB5

analogous

#B5314C #B55831 #B59A31

triadic

#B55831 #31B558 #5831B5

tetradic

#B55831 #4CB531 #318EB5 #9A31B5

square

#B55831 #4CB531 #318EB5 #9A31B5

split-complementary

#B55831 #31B59A #314CB5

monochromatic

#552917 #854124 #B55831 #D07853 #DD9E83

Accessibility & contrast

On white

4.77

#B55831 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#B55831 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B55831

4.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B55831	#FFFFFF	#000000	##FFFFFF
##B55831	1.00	4.77	4.40	4.77
#FFFFFF	4.77	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#72662D

Deuteranopia (green-blind)

#887B2F

Tritanopia (blue-blind)

#C6454F

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #b55831;
/* rgb */ color: rgb(181, 88, 49);
/* oklch */ color: oklch(56.7% 0.132 42.2);

Tailwind

colors: {
  custom: {
    50: '#d2896b',
    500: '#b55831',
    950: '#000000',
  },
}

SCSS

$custom: #b55831;
$custom-light: #d2896b;
$custom-dark: #000000;

JSON

{
  "hex": "#b55831",
  "rgb": {
    "r": 181,
    "g": 88,
    "b": 49
  },
  "hsl": {
    "h": 17.727,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56737,
    "c": 0.13191,
    "h": 42.2
  },
  "luminance": 0.17025
}

Semantic roles & 50–950 ramp

primary

#B55831

secondary

#7BB0C7

accent

#B3E147

background

#FDF8F6

surface

#FBF0EB

border

#D4CBC6

text

#150C07

muted

#837D7A

Preview Lab

Preview with #B55831

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

Preview Lab → · Contrast checker → · Palette generator →