#B0302A#B0302A

#B0302A is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.6% C 0.166 H 27.5°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#B0302A
RGB	rgb(176, 48, 42)
HSL	hsl(3, 61%, 43%)
HSV	hsv(3, 76%, 69%)
CMYK	cmyk(0%, 72.7%, 76.1%, 31%)
CIE-LAB	lab(40.43, 51.05, 34.37)
CIE-LCH	lch(40.43, 61.54, 33.95°)
OKLab	oklab(50.61% 0.147 0.0765)
OKLCH	oklch(50.61% 0.166 27.5)
XYZ	xyz(19.3816, 11.5141, 3.3920)
Luminance	0.1151 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0302A #2AAAB0

analogous

#B02A67 #B0302A #B0732A

triadic

#B0302A #2AB030 #302AB0

tetradic

#B0302A #67B02A #2AAAB0 #732AB0

square

#B0302A #67B02A #2AAAB0 #732AB0

split-complementary

#B0302A #2AB073 #2A67B0

monochromatic

#4D1512 #7F231E #B0302A #D34B45 #DE7B76

Accessibility & contrast

On white

6.36

#B0302A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#B0302A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0302A

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0302A	#FFFFFF	#000000	##FFFFFF
##B0302A	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564E28

Deuteranopia (green-blind)

#766925

Tritanopia (blue-blind)

#C20030

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b0302a;
/* rgb */ color: rgb(176, 48, 42);
/* oklch */ color: oklch(50.6% 0.166 27.5);

Tailwind

colors: {
  custom: {
    50: '#d07264',
    500: '#b0302a',
    950: '#000000',
  },
}

SCSS

$custom: #b0302a;
$custom-light: #d07264;
$custom-dark: #000000;

JSON

{
  "hex": "#b0302a",
  "rgb": {
    "r": 176,
    "g": 48,
    "b": 42
  },
  "hsl": {
    "h": 2.687,
    "s": 61.468,
    "l": 42.745
  },
  "oklch": {
    "l": 0.50613,
    "c": 0.16568,
    "h": 27.5
  },
  "luminance": 0.11511
}

Semantic roles & 50–950 ramp

primary

#B0302A

secondary

#70C2C6

accent

#DDE543

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#160805

muted

#847B7A

Preview Lab

Preview with #B0302A

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

Preview Lab → · Contrast checker → · Palette generator →