#B31E32#B31E32

#B31E32 is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.8% C 0.182 H 20.9°. Best body text is #FFFFFF at 6.67:1 contrast (WCAG AA passes).

Color values

HEX	#B31E32
RGB	rgb(179, 30, 50)
HSL	hsl(352, 71%, 41%)
HSV	hsv(352, 83%, 70%)
CMYK	cmyk(0%, 83.2%, 72.1%, 29.8%)
CIE-LAB	lab(39.15, 57.85, 28.28)
CIE-LCH	lch(39.15, 64.40, 26.05°)
OKLab	oklab(49.8% 0.1699 0.0648)
OKLCH	oklch(49.8% 0.182 20.9)
XYZ	xyz(19.6327, 10.7457, 4.0574)
Luminance	0.1074 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B31E32 #1EB39F

analogous

#B31E7C #B31E32 #B3541E

triadic

#B31E32 #32B31E #1E32B3

tetradic

#B31E32 #7CB31E #1EB39F #541EB3

square

#B31E32 #7CB31E #1EB39F #541EB3

split-complementary

#B31E32 #1EB354 #1E7CB3

monochromatic

#4A0C15 #7F1523 #B31E32 #DD3249 #E56677

Accessibility & contrast

On white

6.67

#B31E32 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.15

#B31E32 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B31E32

6.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B31E32	#FFFFFF	#000000	##FFFFFF
##B31E32	1.00	6.67	3.15	6.67
#FFFFFF	6.67	1.00	21.00	1.00
#000000	3.15	21.00	1.00	21.00
##FFFFFF	6.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4831

Deuteranopia (green-blind)

#72672D

Tritanopia (blue-blind)

#C50028

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #b31e32;
/* rgb */ color: rgb(179, 30, 50);
/* oklch */ color: oklch(49.8% 0.182 20.9);

Tailwind

colors: {
  custom: {
    50: '#d36b69',
    500: '#b31e32',
    950: '#000000',
  },
}

SCSS

$custom: #b31e32;
$custom-light: #d36b69;
$custom-dark: #000000;

JSON

{
  "hex": "#b31e32",
  "rgb": {
    "r": 179,
    "g": 30,
    "b": 50
  },
  "hsl": {
    "h": 351.946,
    "s": 71.292,
    "l": 40.98
  },
  "oklch": {
    "l": 0.49798,
    "c": 0.18188,
    "h": 20.9
  },
  "luminance": 0.10743
}

Semantic roles & 50–950 ramp

primary

#B31E32

secondary

#62CBBD

accent

#EED63A

background

#FEF6F6

surface

#FCECEB

border

#D5C7C6

text

#160806

muted

#847A7A

Preview Lab

Preview with #B31E32

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

Preview Lab → · Contrast checker → · Palette generator →