#B5302E#B5302E

#B5302E is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.5% C 0.170 H 26.2°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#B5302E
RGB	rgb(181, 48, 46)
HSL	hsl(1, 59%, 45%)
HSV	hsv(1, 75%, 71%)
CMYK	cmyk(0%, 73.5%, 74.6%, 29%)
CIE-LAB	lab(41.43, 52.82, 33.43)
CIE-LCH	lch(41.43, 62.51, 32.33°)
OKLab	oklab(51.55% 0.1528 0.0751)
OKLCH	oklch(51.55% 0.17 26.2)
XYZ	xyz(20.6085, 12.1381, 3.8420)
Luminance	0.1213 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B5302E #2EB3B5

analogous

#B52E70 #B5302E #B5742E

triadic

#B5302E #2EB530 #302EB5

tetradic

#B5302E #70B52E #2EB3B5 #742EB5

square

#B5302E #70B52E #2EB3B5 #742EB5

split-complementary

#B5302E #2EB574 #2E70B5

monochromatic

#531615 #842322 #B5302E #D2504E #DE807F

Accessibility & contrast

On white

6.13

#B5302E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B5302E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B5302E

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B5302E	#FFFFFF	#000000	##FFFFFF
##B5302E	1.00	6.13	3.43	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#574F2C

Deuteranopia (green-blind)

#786C29

Tritanopia (blue-blind)

#C70031

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b5302e;
/* rgb */ color: rgb(181, 48, 46);
/* oklch */ color: oklch(51.5% 0.170 26.2);

Tailwind

colors: {
  custom: {
    50: '#d47267',
    500: '#b5302e',
    950: '#000000',
  },
}

SCSS

$custom: #b5302e;
$custom-light: #d47267;
$custom-dark: #000000;

JSON

{
  "hex": "#b5302e",
  "rgb": {
    "r": 181,
    "g": 48,
    "b": 46
  },
  "hsl": {
    "h": 0.889,
    "s": 59.471,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51549,
    "c": 0.17024,
    "h": 26.2
  },
  "luminance": 0.12135
}

Semantic roles & 50–950 ramp

primary

#B5302E

secondary

#78C6C7

accent

#E0E345

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B5302E

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

Preview Lab → · Contrast checker → · Palette generator →