#B7302A#B7302A

#B7302A is a mid, vivid red. Relative luminance 0.123; OKLCH L 51.9% C 0.173 H 27.6°. Best body text is #FFFFFF at 6.05:1 contrast (WCAG AA passes).

Color values

HEX	#B7302A
RGB	rgb(183, 48, 42)
HSL	hsl(3, 63%, 44%)
HSV	hsv(3, 77%, 72%)
CMYK	cmyk(0%, 73.8%, 77%, 28.2%)
CIE-LAB	lab(41.77, 53.29, 36.20)
CIE-LCH	lch(41.77, 64.43, 34.19°)
OKLab	oklab(51.85% 0.1532 0.08)
OKLCH	oklch(51.85% 0.173 27.6)
XYZ	xyz(21.0058, 12.3516, 3.4681)
Luminance	0.1235 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B7302A #2AB1B7

analogous

#B72A6B #B7302A #B7772A

triadic

#B7302A #2AB730 #302AB7

tetradic

#B7302A #6BB72A #2AB1B7 #772AB7

square

#B7302A #6BB72A #2AB1B7 #772AB7

split-complementary

#B7302A #2AB777 #2A6BB7

monochromatic

#531613 #85231F #B7302A #D54F49 #E17F7B

Accessibility & contrast

On white

6.05

#B7302A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.47

#B7302A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B7302A

6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B7302A	#FFFFFF	#000000	##FFFFFF
##B7302A	1.00	6.05	3.47	6.05
#FFFFFF	6.05	1.00	21.00	1.00
#000000	3.47	21.00	1.00	21.00
##FFFFFF	6.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585028

Deuteranopia (green-blind)

#7A6D25

Tritanopia (blue-blind)

#CA0030

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b7302a;
/* rgb */ color: rgb(183, 48, 42);
/* oklch */ color: oklch(51.9% 0.173 27.6);

Tailwind

colors: {
  custom: {
    50: '#d57264',
    500: '#b7302a',
    950: '#000000',
  },
}

SCSS

$custom: #b7302a;
$custom-light: #d57264;
$custom-dark: #000000;

JSON

{
  "hex": "#b7302a",
  "rgb": {
    "r": 183,
    "g": 48,
    "b": 42
  },
  "hsl": {
    "h": 2.553,
    "s": 62.667,
    "l": 44.118
  },
  "oklch": {
    "l": 0.51853,
    "c": 0.17281,
    "h": 27.6
  },
  "luminance": 0.12348
}

Semantic roles & 50–950 ramp

primary

#B7302A

secondary

#74C5C9

accent

#DFE642

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160905

muted

#847B7A

Preview Lab

Preview with #B7302A

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

Preview Lab → · Contrast checker → · Palette generator →