#B13631#B13631

#B13631 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.5% C 0.160 H 26.7°. Best body text is #FFFFFF at 6.10:1 contrast (WCAG AA passes).

Color values

HEX	#B13631
RGB	rgb(177, 54, 49)
HSL	hsl(2, 57%, 44%)
HSV	hsv(2, 72%, 69%)
CMYK	cmyk(0%, 69.5%, 72.3%, 30.6%)
CIE-LAB	lab(41.55, 49.38, 31.60)
CIE-LCH	lch(41.55, 58.62, 32.62°)
OKLab	oklab(51.51% 0.1431 0.072)
OKLCH	oklch(51.51% 0.16 26.7)
XYZ	xyz(20.0072, 12.2101, 4.2084)
Luminance	0.1221 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B13631 #31ACB1

analogous

#B1316C #B13631 #B17631

triadic

#B13631 #31B136 #3631B1

tetradic

#B13631 #6CB131 #31ACB1 #7631B1

square

#B13631 #6CB131 #31ACB1 #7631B1

split-complementary

#B13631 #31B176 #316CB1

monochromatic

#511916 #812724 #B13631 #CF5551 #DC8480

Accessibility & contrast

On white

6.10

#B13631 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.44

#B13631 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B13631

6.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B13631	#FFFFFF	#000000	##FFFFFF
##B13631	1.00	6.10	3.44	6.10
#FFFFFF	6.10	1.00	21.00	1.00
#000000	3.44	21.00	1.00	21.00
##FFFFFF	6.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59512F

Deuteranopia (green-blind)

#786C2D

Tritanopia (blue-blind)

#C30E36

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b13631;
/* rgb */ color: rgb(177, 54, 49);
/* oklch */ color: oklch(51.5% 0.160 26.7);

Tailwind

colors: {
  custom: {
    50: '#d07569',
    500: '#b13631',
    950: '#000000',
  },
}

SCSS

$custom: #b13631;
$custom-light: #d07569;
$custom-dark: #000000;

JSON

{
  "hex": "#b13631",
  "rgb": {
    "r": 177,
    "g": 54,
    "b": 49
  },
  "hsl": {
    "h": 2.344,
    "s": 56.637,
    "l": 44.314
  },
  "oklch": {
    "l": 0.51509,
    "c": 0.16016,
    "h": 26.7
  },
  "luminance": 0.12207
}

Semantic roles & 50–950 ramp

primary

#B13631

secondary

#79C2C5

accent

#DAE048

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B13631

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

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