#B54131#B54131

#B54131 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.5% C 0.154 H 30.6°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#B54131
RGB	rgb(181, 65, 49)
HSL	hsl(7, 57%, 45%)
HSV	hsv(7, 73%, 71%)
CMYK	cmyk(0%, 64.1%, 72.9%, 29%)
CIE-LAB	lab(43.99, 46.10, 34.58)
CIE-LCH	lch(43.99, 57.63, 36.87°)
OKLab	oklab(53.47% 0.1323 0.0783)
OKLCH	oklch(53.47% 0.154 30.6)
XYZ	xyz(21.5030, 13.8291, 4.4421)
Luminance	0.1383 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B54131 #31A5B5

analogous

#B53163 #B54131 #B58331

triadic

#B54131 #31B541 #4131B5

tetradic

#B54131 #63B531 #31A5B5 #8331B5

square

#B54131 #63B531 #31A5B5 #8331B5

split-complementary

#B54131 #31B583 #3163B5

monochromatic

#551E17 #853024 #B54131 #D06253 #DD8E83

Accessibility & contrast

On white

5.58

#B54131 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#B54131 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B54131

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B54131	#FFFFFF	#000000	##FFFFFF
##B54131	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61582F

Deuteranopia (green-blind)

#7E712D

Tritanopia (blue-blind)

#C7243E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b54131;
/* rgb */ color: rgb(181, 65, 49);
/* oklch */ color: oklch(53.5% 0.154 30.6);

Tailwind

colors: {
  custom: {
    50: '#d37b6a',
    500: '#b54131',
    950: '#000000',
  },
}

SCSS

$custom: #b54131;
$custom-light: #d37b6a;
$custom-dark: #000000;

JSON

{
  "hex": "#b54131",
  "rgb": {
    "r": 181,
    "g": 65,
    "b": 49
  },
  "hsl": {
    "h": 7.273,
    "s": 57.391,
    "l": 45.098
  },
  "oklch": {
    "l": 0.53472,
    "c": 0.15373,
    "h": 30.6
  },
  "luminance": 0.13826
}

Semantic roles & 50–950 ramp

primary

#B54131

secondary

#7BBEC7

accent

#CEE147

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B54131

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

Preview Lab → · Contrast checker → · Palette generator →