#B42F18#B42F18

#B42F18 is a mid, vivid red. Relative luminance 0.118; OKLCH L 51.1% C 0.173 H 32.2°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#B42F18
RGB	rgb(180, 47, 24)
HSL	hsl(9, 76%, 40%)
HSV	hsv(9, 87%, 71%)
CMYK	cmyk(0%, 73.9%, 86.7%, 29.4%)
CIE-LAB	lab(40.91, 52.15, 44.57)
CIE-LCH	lch(40.91, 68.60, 40.52°)
OKLab	oklab(51.05% 0.1465 0.0924)
OKLCH	oklch(51.05% 0.173 32.2)
XYZ	xyz(20.0062, 11.8054, 2.0892)
Luminance	0.1180 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B42F18 #189DB4

analogous

#B4184F #B42F18 #B47D18

triadic

#B42F18 #18B42F #2F18B4

tetradic

#B42F18 #4FB418 #189DB4 #7D18B4

square

#B42F18 #4FB418 #189DB4 #7D18B4

split-complementary

#B42F18 #18B47D #184FB4

monochromatic

#48130A #7E2111 #B42F18 #E24327 #E9725D

Accessibility & contrast

On white

6.25

#B42F18 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#B42F18 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B42F18

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B42F18	#FFFFFF	#000000	##FFFFFF
##B42F18	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584E13

Deuteranopia (green-blind)

#796B0F

Tritanopia (blue-blind)

#C7002B

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b42f18;
/* rgb */ color: rgb(180, 47, 24);
/* oklch */ color: oklch(51.1% 0.173 32.2);

Tailwind

colors: {
  custom: {
    50: '#d47158',
    500: '#b42f18',
    950: '#000000',
  },
}

SCSS

$custom: #b42f18;
$custom-light: #d47158;
$custom-dark: #000000;

JSON

{
  "hex": "#b42f18",
  "rgb": {
    "r": 180,
    "g": 47,
    "b": 24
  },
  "hsl": {
    "h": 8.846,
    "s": 76.471,
    "l": 40
  },
  "oklch": {
    "l": 0.51053,
    "c": 0.17322,
    "h": 32.2
  },
  "luminance": 0.11802
}

Semantic roles & 50–950 ramp

primary

#B42F18

secondary

#5BBCCD

accent

#D7F335

background

#FEF7F5

surface

#FDEDE9

border

#D5C8C5

text

#160803

muted

#847B78

Preview Lab

Preview with #B42F18

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

Preview Lab → · Contrast checker → · Palette generator →