#B42317#B42317

#B42317 is a mid, vivid red. Relative luminance 0.110; OKLCH L 50.0% C 0.182 H 29.7°. Best body text is #FFFFFF at 6.58:1 contrast (WCAG AA passes).

Color values

HEX	#B42317
RGB	rgb(180, 35, 23)
HSL	hsl(5, 77%, 40%)
HSV	hsv(5, 87%, 71%)
CMYK	cmyk(0%, 80.6%, 87.2%, 29.4%)
CIE-LAB	lab(39.53, 55.95, 43.89)
CIE-LCH	lch(39.53, 71.11, 38.12°)
OKLab	oklab(50.03% 0.1582 0.0903)
OKLCH	oklch(50.03% 0.182 29.7)
XYZ	xyz(19.5806, 10.9704, 1.8970)
Luminance	0.1097 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42317 #17A8B4

analogous

#B4175A #B42317 #B47217

triadic

#B42317 #17B423 #2317B4

tetradic

#B42317 #5AB417 #17A8B4 #7217B4

square

#B42317 #5AB417 #17A8B4 #7217B4

split-complementary

#B42317 #17B472 #175AB4

monochromatic

#470E09 #7E1810 #B42317 #E33425 #EA665B

Accessibility & contrast

On white

6.58

#B42317 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.19

#B42317 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42317

6.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42317	#FFFFFF	#000000	##FFFFFF
##B42317	1.00	6.58	3.19	6.58
#FFFFFF	6.58	1.00	21.00	1.00
#000000	3.19	21.00	1.00	21.00
##FFFFFF	6.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534913

Deuteranopia (green-blind)

#76680C

Tritanopia (blue-blind)

#C70022

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b42317;
/* rgb */ color: rgb(180, 35, 23);
/* oklch */ color: oklch(50.0% 0.182 29.7);

Tailwind

colors: {
  custom: {
    50: '#d56c57',
    500: '#b42317',
    950: '#000000',
  },
}

SCSS

$custom: #b42317;
$custom-light: #d56c57;
$custom-dark: #000000;

JSON

{
  "hex": "#b42317",
  "rgb": {
    "r": 180,
    "g": 35,
    "b": 23
  },
  "hsl": {
    "h": 4.586,
    "s": 77.34,
    "l": 39.804
  },
  "oklch": {
    "l": 0.50026,
    "c": 0.18216,
    "h": 29.7
  },
  "luminance": 0.10967
}

Semantic roles & 50–950 ramp

primary

#B42317

secondary

#59C5CE

accent

#E5F434

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160803

muted

#847A78

Preview Lab

Preview with #B42317

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

Preview Lab → · Contrast checker → · Palette generator →