#B03339#B03339

#B03339 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.1% C 0.161 H 22.4°. Best body text is #FFFFFF at 6.22:1 contrast (WCAG AA passes).

Color values

HEX	#B03339
RGB	rgb(176, 51, 57)
HSL	hsl(357, 55%, 45%)
HSV	hsv(357, 71%, 69%)
CMYK	cmyk(0%, 71%, 67.6%, 31%)
CIE-LAB	lab(41.05, 50.64, 26.16)
CIE-LCH	lch(41.05, 57.00, 27.33°)
OKLab	oklab(51.14% 0.1489 0.0614)
OKLCH	oklch(51.14% 0.161 22.4)
XYZ	xyz(19.8290, 11.8961, 5.1222)
Luminance	0.1189 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03339 #33B0AA

analogous

#B03378 #B03339 #B06C33

triadic

#B03339 #39B033 #3339B0

tetradic

#B03339 #78B033 #33B0AA #6C33B0

square

#B03339 #78B033 #33B0AA #6C33B0

split-complementary

#B03339 #33B06C #3378B0

monochromatic

#51181A #81252A #B03339 #CD5359 #DB8287

Accessibility & contrast

On white

6.22

#B03339 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.38

#B03339 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03339

6.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03339	#FFFFFF	#000000	##FFFFFF
##B03339	1.00	6.22	3.38	6.22
#FFFFFF	6.22	1.00	21.00	1.00
#000000	3.38	21.00	1.00	21.00
##FFFFFF	6.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#565038

Deuteranopia (green-blind)

#756B35

Tritanopia (blue-blind)

#C10936

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03339;
/* rgb */ color: rgb(176, 51, 57);
/* oklch */ color: oklch(51.1% 0.161 22.4);

Tailwind

colors: {
  custom: {
    50: '#cf736f',
    500: '#b03339',
    950: '#000000',
  },
}

SCSS

$custom: #b03339;
$custom-light: #cf736f;
$custom-dark: #000000;

JSON

{
  "hex": "#b03339",
  "rgb": {
    "r": 176,
    "g": 51,
    "b": 57
  },
  "hsl": {
    "h": 357.12,
    "s": 55.066,
    "l": 44.51
  },
  "oklch": {
    "l": 0.5114,
    "c": 0.16104,
    "h": 22.4
  },
  "luminance": 0.11893
}

Semantic roles & 50–950 ramp

primary

#B03339

secondary

#7BC4C1

accent

#DED749

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03339

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

Preview Lab → · Contrast checker → · Palette generator →