#B03337#B03337

#B03337 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.1% C 0.161 H 23.3°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#B03337
RGB	rgb(176, 51, 55)
HSL	hsl(358, 55%, 45%)
HSV	hsv(358, 71%, 69%)
CMYK	cmyk(0%, 71%, 68.8%, 31%)
CIE-LAB	lab(41.02, 50.53, 27.34)
CIE-LCH	lch(41.02, 57.45, 28.42°)
OKLab	oklab(51.11% 0.1481 0.0637)
OKLCH	oklch(51.11% 0.161 23.3)
XYZ	xyz(19.7800, 11.8765, 4.8645)
Luminance	0.1187 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03337 #33B0AC

analogous

#B03376 #B03337 #B06E33

triadic

#B03337 #37B033 #3337B0

tetradic

#B03337 #76B033 #33B0AC #6E33B0

square

#B03337 #76B033 #33B0AC #6E33B0

split-complementary

#B03337 #33B06E #3376B0

monochromatic

#511819 #812528 #B03337 #CD5357 #DB8285

Accessibility & contrast

On white

6.22

#B03337 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#B03337 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03337

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03337	#FFFFFF	#000000	##FFFFFF
##B03337	1.00	6.22	3.37	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565036

Deuteranopia (green-blind)

#756B33

Tritanopia (blue-blind)

#C10836

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03337;
/* rgb */ color: rgb(176, 51, 55);
/* oklch */ color: oklch(51.1% 0.161 23.3);

Tailwind

colors: {
  custom: {
    50: '#cf736e',
    500: '#b03337',
    950: '#000000',
  },
}

SCSS

$custom: #b03337;
$custom-light: #cf736e;
$custom-dark: #000000;

JSON

{
  "hex": "#b03337",
  "rgb": {
    "r": 176,
    "g": 51,
    "b": 55
  },
  "hsl": {
    "h": 358.08,
    "s": 55.066,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51107,
    "c": 0.16123,
    "h": 23.3
  },
  "luminance": 0.11874
}

Semantic roles & 50–950 ramp

primary

#B03337

secondary

#7BC4C2

accent

#DEDA49

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03337

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

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