#B55431#B55431

#B55431 is a mid, vivid orange. Relative luminance 0.164; OKLCH L 56.1% C 0.135 H 39.8°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#B55431
RGB	rgb(181, 84, 49)
HSL	hsl(16, 57%, 45%)
HSV	hsv(16, 73%, 71%)
CMYK	cmyk(0%, 53.6%, 72.9%, 29%)
CIE-LAB	lab(47.48, 36.97, 38.46)
CIE-LCH	lch(47.48, 53.35, 46.13°)
OKLab	oklab(56.12% 0.1041 0.0867)
OKLCH	oklch(56.12% 0.135 39.8)
XYZ	xyz(22.7830, 16.3890, 4.8688)
Luminance	0.1639 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B55431 #3192B5

analogous

#B53150 #B55431 #B59631

triadic

#B55431 #31B554 #5431B5

tetradic

#B55431 #50B531 #3192B5 #9631B5

square

#B55431 #50B531 #3192B5 #9631B5

split-complementary

#B55431 #31B596 #3150B5

monochromatic

#552717 #853E24 #B55431 #D07453 #DD9B83

Accessibility & contrast

On white

4.91

#B55431 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#B55431 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B55431

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B55431	#FFFFFF	#000000	##FFFFFF
##B55431	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E632D

Deuteranopia (green-blind)

#86792F

Tritanopia (blue-blind)

#C6404C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #b55431;
/* rgb */ color: rgb(181, 84, 49);
/* oklch */ color: oklch(56.1% 0.135 39.8);

Tailwind

colors: {
  custom: {
    50: '#d2866b',
    500: '#b55431',
    950: '#000000',
  },
}

SCSS

$custom: #b55431;
$custom-light: #d2866b;
$custom-dark: #000000;

JSON

{
  "hex": "#b55431",
  "rgb": {
    "r": 181,
    "g": 84,
    "b": 49
  },
  "hsl": {
    "h": 15.909,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.56116,
    "c": 0.13542,
    "h": 39.8
  },
  "luminance": 0.16386
}

Semantic roles & 50–950 ramp

primary

#B55431

secondary

#7BB3C7

accent

#B8E147

background

#FDF8F6

surface

#FBF0EB

border

#D4CBC6

text

#150B06

muted

#837C7A

Preview Lab

Preview with #B55431

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

Preview Lab → · Contrast checker → · Palette generator →