#B04131#B04131

#B04131 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.148 H 30.8°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#B04131
RGB	rgb(176, 65, 49)
HSL	hsl(8, 56%, 44%)
HSV	hsv(8, 72%, 69%)
CMYK	cmyk(0%, 63.1%, 72.2%, 31%)
CIE-LAB	lab(43.12, 44.32, 33.35)
CIE-LCH	lch(43.12, 55.47, 36.96°)
OKLab	oklab(52.65% 0.1273 0.0759)
OKLCH	oklch(52.65% 0.148 30.8)
XYZ	xyz(20.3513, 13.2353, 4.3882)
Luminance	0.1323 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B04131 #31A0B0

analogous

#B03161 #B04131 #B08131

triadic

#B04131 #31B041 #4131B0

tetradic

#B04131 #61B031 #31A0B0 #8131B0

square

#B04131 #61B031 #31A0B0 #8131B0

split-complementary

#B04131 #31B081 #3161B0

monochromatic

#501E16 #802F24 #B04131 #CE6050 #DC8B80

Accessibility & contrast

On white

5.76

#B04131 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B04131 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B04131

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B04131	#FFFFFF	#000000	##FFFFFF
##B04131	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F572F

Deuteranopia (green-blind)

#7B6F2E

Tritanopia (blue-blind)

#C1263E

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b04131;
/* rgb */ color: rgb(176, 65, 49);
/* oklch */ color: oklch(52.7% 0.148 30.8);

Tailwind

colors: {
  custom: {
    50: '#cf7b6a',
    500: '#b04131',
    950: '#000000',
  },
}

SCSS

$custom: #b04131;
$custom-light: #cf7b6a;
$custom-dark: #000000;

JSON

{
  "hex": "#b04131",
  "rgb": {
    "r": 176,
    "g": 65,
    "b": 49
  },
  "hsl": {
    "h": 7.559,
    "s": 56.444,
    "l": 44.118
  },
  "oklch": {
    "l": 0.52652,
    "c": 0.1482,
    "h": 30.8
  },
  "luminance": 0.13232
}

Semantic roles & 50–950 ramp

primary

#B04131

secondary

#78BBC5

accent

#CDE048

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150A06

muted

#837C7A

Preview Lab

Preview with #B04131

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

Preview Lab → · Contrast checker → · Palette generator →