#B13431#B13431

#B13431 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.162 H 26.1°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#B13431
RGB	rgb(177, 52, 49)
HSL	hsl(1, 57%, 44%)
HSV	hsv(1, 72%, 69%)
CMYK	cmyk(0%, 70.6%, 72.3%, 30.6%)
CIE-LAB	lab(41.26, 50.17, 31.27)
CIE-LCH	lch(41.26, 59.11, 31.93°)
OKLab	oklab(51.29% 0.1455 0.0713)
OKLCH	oklch(51.29% 0.162 26.1)
XYZ	xyz(19.9160, 12.0278, 4.1780)
Luminance	0.1202 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13431 #31AEB1

analogous

#B1316E #B13431 #B17431

triadic

#B13431 #31B134 #3431B1

tetradic

#B13431 #6EB131 #31AEB1 #7431B1

square

#B13431 #6EB131 #31AEB1 #7431B1

split-complementary

#B13431 #31B174 #316EB1

monochromatic

#511816 #812624 #B13431 #CF5351 #DC8380

Accessibility & contrast

On white

6.17

#B13431 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#B13431 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13431

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13431	#FFFFFF	#000000	##FFFFFF
##B13431	1.00	6.17	3.41	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58502F

Deuteranopia (green-blind)

#776B2D

Tritanopia (blue-blind)

#C30735

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b13431;
/* rgb */ color: rgb(177, 52, 49);
/* oklch */ color: oklch(51.3% 0.162 26.1);

Tailwind

colors: {
  custom: {
    50: '#d07469',
    500: '#b13431',
    950: '#000000',
  },
}

SCSS

$custom: #b13431;
$custom-light: #d07469;
$custom-dark: #000000;

JSON

{
  "hex": "#b13431",
  "rgb": {
    "r": 177,
    "g": 52,
    "b": 49
  },
  "hsl": {
    "h": 1.406,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51294,
    "c": 0.16206,
    "h": 26.1
  },
  "luminance": 0.12025
}

Semantic roles & 50–950 ramp

primary

#B13431

secondary

#79C3C5

accent

#DCE048

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B13431

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

Preview Lab → · Contrast checker → · Palette generator →