#B43331#B43331

#B43331 is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.7% C 0.166 H 25.9°. Best body text is #FFFFFF at 6.07:1 contrast (WCAG AA passes).

Color values

HEX	#B43331
RGB	rgb(180, 51, 49)
HSL	hsl(1, 57%, 45%)
HSV	hsv(1, 73%, 71%)
CMYK	cmyk(0%, 71.7%, 72.8%, 29.4%)
CIE-LAB	lab(41.68, 51.53, 31.90)
CIE-LCH	lch(41.68, 60.60, 31.76°)
OKLab	oklab(51.71% 0.1495 0.0725)
OKLCH	oklch(51.71% 0.166 25.9)
XYZ	xyz(20.5629, 12.2958, 4.1957)
Luminance	0.1229 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B43331 #31B2B4

analogous

#B43171 #B43331 #B47531

triadic

#B43331 #31B433 #3331B4

tetradic

#B43331 #71B431 #31B2B4 #7531B4

square

#B43331 #71B431 #31B2B4 #7531B4

split-complementary

#B43331 #31B475 #3171B4

monochromatic

#541817 #842524 #B43331 #D05452 #DD8482

Accessibility & contrast

On white

6.07

#B43331 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.46

#B43331 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B43331

6.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B43331	#FFFFFF	#000000	##FFFFFF
##B43331	1.00	6.07	3.46	6.07
#FFFFFF	6.07	1.00	21.00	1.00
#000000	3.46	21.00	1.00	21.00
##FFFFFF	6.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#58512F

Deuteranopia (green-blind)

#786D2D

Tritanopia (blue-blind)

#C60034

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b43331;
/* rgb */ color: rgb(180, 51, 49);
/* oklch */ color: oklch(51.7% 0.166 25.9);

Tailwind

colors: {
  custom: {
    50: '#d37469',
    500: '#b43331',
    950: '#000000',
  },
}

SCSS

$custom: #b43331;
$custom-light: #d37469;
$custom-dark: #000000;

JSON

{
  "hex": "#b43331",
  "rgb": {
    "r": 180,
    "g": 51,
    "b": 49
  },
  "hsl": {
    "h": 0.916,
    "s": 57.205,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51712,
    "c": 0.16613,
    "h": 25.9
  },
  "luminance": 0.12293
}

Semantic roles & 50–950 ramp

primary

#B43331

secondary

#7BC5C6

accent

#DEE047

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B43331

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

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