#B8303B#B8303B

#B8303B is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.3% C 0.172 H 21.3°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#B8303B
RGB	rgb(184, 48, 59)
HSL	hsl(355, 59%, 45%)
HSV	hsv(355, 74%, 72%)
CMYK	cmyk(0%, 73.9%, 67.9%, 27.8%)
CIE-LAB	lab(42.19, 54.38, 26.69)
CIE-LCH	lch(42.19, 60.57, 26.14°)
OKLab	oklab(52.27% 0.1601 0.0625)
OKLCH	oklch(52.27% 0.172 21.3)
XYZ	xyz(21.6159, 12.6233, 5.4352)
Luminance	0.1262 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B8303B #30B8AD

analogous

#B8307F #B8303B #B86930

triadic

#B8303B #3BB830 #303BB8

tetradic

#B8303B #7FB830 #30B8AD #6930B8

square

#B8303B #7FB830 #30B8AD #6930B8

split-complementary

#B8303B #30B869 #307FB8

monochromatic

#57171C #87232B #B8303B #D2535D #DF848B

Accessibility & contrast

On white

5.96

#B8303B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B8303B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B8303B

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B8303B	#FFFFFF	#000000	##FFFFFF
##B8303B	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57513A

Deuteranopia (green-blind)

#796E37

Tritanopia (blue-blind)

#CA0035

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b8303b;
/* rgb */ color: rgb(184, 48, 59);
/* oklch */ color: oklch(52.3% 0.172 21.3);

Tailwind

colors: {
  custom: {
    50: '#d57371',
    500: '#b8303b',
    950: '#000000',
  },
}

SCSS

$custom: #b8303b;
$custom-light: #d57371;
$custom-dark: #000000;

JSON

{
  "hex": "#b8303b",
  "rgb": {
    "r": 184,
    "g": 48,
    "b": 59
  },
  "hsl": {
    "h": 355.147,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52274,
    "c": 0.17193,
    "h": 21.3
  },
  "luminance": 0.1262
}

Semantic roles & 50–950 ramp

primary

#B8303B

secondary

#7CC8C2

accent

#E2D546

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B8303B

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

Preview Lab → · Contrast checker → · Palette generator →