#B12431#B12431

#B12431 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.8% C 0.176 H 22.1°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#B12431
RGB	rgb(177, 36, 49)
HSL	hsl(354, 66%, 42%)
HSV	hsv(354, 80%, 69%)
CMYK	cmyk(0%, 79.7%, 72.3%, 30.6%)
CIE-LAB	lab(39.30, 55.62, 28.97)
CIE-LCH	lch(39.30, 62.72, 27.51°)
OKLab	oklab(49.83% 0.1629 0.0663)
OKLCH	oklch(49.83% 0.176 22.1)
XYZ	xyz(19.3190, 10.8337, 3.9790)
Luminance	0.1083 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B12431 #24B1A4

analogous

#B12478 #B12431 #B15E24

triadic

#B12431 #31B124 #2431B1

tetradic

#B12431 #78B124 #24B1A4 #5E24B1

square

#B12431 #78B124 #24B1A4 #5E24B1

split-complementary

#B12431 #24B15E #2478B1

monochromatic

#4B0F15 #7E1A23 #B12431 #D73B49 #E16E79

Accessibility & contrast

On white

6.63

#B12431 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#B12431 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B12431

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B12431	#FFFFFF	#000000	##FFFFFF
##B12431	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504930

Deuteranopia (green-blind)

#72672C

Tritanopia (blue-blind)

#C3002A

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b12431;
/* rgb */ color: rgb(177, 36, 49);
/* oklch */ color: oklch(49.8% 0.176 22.1);

Tailwind

colors: {
  custom: {
    50: '#d16d69',
    500: '#b12431',
    950: '#000000',
  },
}

SCSS

$custom: #b12431;
$custom-light: #d16d69;
$custom-dark: #000000;

JSON

{
  "hex": "#b12431",
  "rgb": {
    "r": 177,
    "g": 36,
    "b": 49
  },
  "hsl": {
    "h": 354.468,
    "s": 66.197,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49834,
    "c": 0.17582,
    "h": 22.1
  },
  "luminance": 0.10831
}

Semantic roles & 50–950 ramp

primary

#B12431

secondary

#69C8BF

accent

#E9D93F

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B12431

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

Preview Lab → · Contrast checker → · Palette generator →