#B8303A#B8303A

#B8303A is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.3% C 0.172 H 21.7°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#B8303A
RGB	rgb(184, 48, 58)
HSL	hsl(356, 59%, 45%)
HSV	hsv(356, 74%, 72%)
CMYK	cmyk(0%, 73.9%, 68.5%, 27.8%)
CIE-LAB	lab(42.17, 54.33, 27.28)
CIE-LCH	lch(42.17, 60.79, 26.66°)
OKLab	oklab(52.26% 0.1598 0.0637)
OKLCH	oklch(52.26% 0.172 21.7)
XYZ	xyz(21.5902, 12.6130, 5.2999)
Luminance	0.1261 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B8303A #30B8AE

analogous

#B8307E #B8303A #B86A30

triadic

#B8303A #3AB830 #303AB8

tetradic

#B8303A #7EB830 #30B8AE #6A30B8

square

#B8303A #7EB830 #30B8AE #6A30B8

split-complementary

#B8303A #30B86A #307EB8

monochromatic

#57171B #87232B #B8303A #D2535C #DF848A

Accessibility & contrast

On white

5.96

#B8303A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#B8303A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B8303A

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B8303A	#FFFFFF	#000000	##FFFFFF
##B8303A	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)

#575139

Deuteranopia (green-blind)

#796E36

Tritanopia (blue-blind)

#CA0035

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b8303a;
/* rgb */ color: rgb(184, 48, 58);
/* oklch */ color: oklch(52.3% 0.172 21.7);

Tailwind

colors: {
  custom: {
    50: '#d57370',
    500: '#b8303a',
    950: '#000000',
  },
}

SCSS

$custom: #b8303a;
$custom-light: #d57370;
$custom-dark: #000000;

JSON

{
  "hex": "#b8303a",
  "rgb": {
    "r": 184,
    "g": 48,
    "b": 58
  },
  "hsl": {
    "h": 355.588,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52257,
    "c": 0.172,
    "h": 21.7
  },
  "luminance": 0.1261
}

Semantic roles & 50–950 ramp

primary

#B8303A

secondary

#7CC8C2

accent

#E2D646

background

#FEF7F6

surface

#FCEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #B8303A

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

Preview Lab → · Contrast checker → · Palette generator →