#B31E19#B31E19

#B31E19 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.5% C 0.184 H 28.4°. Best body text is #FFFFFF at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#B31E19
RGB	rgb(179, 30, 25)
HSL	hsl(2, 75%, 40%)
HSV	hsv(2, 86%, 70%)
CMYK	cmyk(0%, 83.2%, 86%, 29.8%)
CIE-LAB	lab(38.87, 57.02, 42.28)
CIE-LCH	lch(38.87, 70.98, 36.56°)
OKLab	oklab(49.51% 0.162 0.0876)
OKLCH	oklch(49.51% 0.184 28.4)
XYZ	xyz(19.2326, 10.5856, 1.9501)
Luminance	0.1058 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31E19 #19AEB3

analogous

#B31961 #B31E19 #B36B19

triadic

#B31E19 #19B31E #1E19B3

tetradic

#B31E19 #61B319 #19AEB3 #6B19B3

square

#B31E19 #61B319 #19AEB3 #6B19B3

split-complementary

#B31E19 #19B36B #1961B3

monochromatic

#480C0A #7D1512 #B31E19 #E12E28 #E8625E

Accessibility & contrast

On white

6.74

#B31E19 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#B31E19 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31E19

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31E19	#FFFFFF	#000000	##FFFFFF
##B31E19	1.00	6.74	3.12	6.74
#FFFFFF	6.74	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504716

Deuteranopia (green-blind)

#74670F

Tritanopia (blue-blind)

#C6001F

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b31e19;
/* rgb */ color: rgb(179, 30, 25);
/* oklch */ color: oklch(49.5% 0.184 28.4);

Tailwind

colors: {
  custom: {
    50: '#d46b58',
    500: '#b31e19',
    950: '#000000',
  },
}

SCSS

$custom: #b31e19;
$custom-light: #d46b58;
$custom-dark: #000000;

JSON

{
  "hex": "#b31e19",
  "rgb": {
    "r": 179,
    "g": 30,
    "b": 25
  },
  "hsl": {
    "h": 1.948,
    "s": 75.49,
    "l": 40
  },
  "oklch": {
    "l": 0.49507,
    "c": 0.18418,
    "h": 28.4
  },
  "luminance": 0.10582
}

Semantic roles & 50–950 ramp

primary

#B31E19

secondary

#5BC9CC

accent

#ECF236

background

#FEF6F5

surface

#FDECE9

border

#D5C7C5

text

#160703

muted

#847A78

Preview Lab

Preview with #B31E19

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

Preview Lab → · Contrast checker → · Palette generator →