#B64131#B64131

#B64131 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.6% C 0.155 H 30.6°. Best body text is #FFFFFF at 5.54:1 contrast (WCAG AA passes).

Color values

HEX	#B64131
RGB	rgb(182, 65, 49)
HSL	hsl(7, 58%, 45%)
HSV	hsv(7, 73%, 71%)
CMYK	cmyk(0%, 64.3%, 73.1%, 28.6%)
CIE-LAB	lab(44.16, 46.46, 34.82)
CIE-LCH	lch(44.16, 58.06, 36.85°)
OKLab	oklab(53.64% 0.1333 0.0788)
OKLCH	oklch(53.64% 0.155 30.6)
XYZ	xyz(21.7384, 13.9505, 4.4532)
Luminance	0.1395 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B64131 #31A6B6

analogous

#B63163 #B64131 #B68331

triadic

#B64131 #31B641 #4131B6

tetradic

#B64131 #63B631 #31A6B6 #8331B6

square

#B64131 #63B631 #31A6B6 #8331B6

split-complementary

#B64131 #31B683 #3163B6

monochromatic

#561F17 #863024 #B64131 #D16253 #DE8E84

Accessibility & contrast

On white

5.54

#B64131 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#B64131 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B64131

5.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B64131	#FFFFFF	#000000	##FFFFFF
##B64131	1.00	5.54	3.79	5.54
#FFFFFF	5.54	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#61582F

Deuteranopia (green-blind)

#7E722D

Tritanopia (blue-blind)

#C8233E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b64131;
/* rgb */ color: rgb(182, 65, 49);
/* oklch */ color: oklch(53.6% 0.155 30.6);

Tailwind

colors: {
  custom: {
    50: '#d37b6a',
    500: '#b64131',
    950: '#000000',
  },
}

SCSS

$custom: #b64131;
$custom-light: #d37b6a;
$custom-dark: #000000;

JSON

{
  "hex": "#b64131",
  "rgb": {
    "r": 182,
    "g": 65,
    "b": 49
  },
  "hsl": {
    "h": 7.218,
    "s": 57.576,
    "l": 45.294
  },
  "oklch": {
    "l": 0.53637,
    "c": 0.15482,
    "h": 30.6
  },
  "luminance": 0.13947
}

Semantic roles & 50–950 ramp

primary

#B64131

secondary

#7CBEC7

accent

#CEE147

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160A06

muted

#847C7A

Preview Lab

Preview with #B64131

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

Preview Lab → · Contrast checker → · Palette generator →