#B64737#B64737

#B64737 is a mid, vivid red. Relative luminance 0.147; OKLCH L 54.5% C 0.148 H 30.6°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#B64737
RGB	rgb(182, 71, 55)
HSL	hsl(8, 54%, 46%)
HSV	hsv(8, 70%, 71%)
CMYK	cmyk(0%, 61%, 69.8%, 28.6%)
CIE-LAB	lab(45.26, 44.03, 32.67)
CIE-LCH	lch(45.26, 54.82, 36.57°)
OKLab	oklab(54.49% 0.1269 0.0752)
OKLCH	oklch(54.49% 0.148 30.6)
XYZ	xyz(22.2365, 14.7304, 5.2860)
Luminance	0.1473 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B64737 #37A6B6

analogous

#B63767 #B64737 #B68737

triadic

#B64737 #37B647 #4737B6

tetradic

#B64737 #67B637 #37A6B6 #8737B6

square

#B64737 #67B637 #37A6B6 #8737B6

split-complementary

#B64737 #37B687 #3767B6

monochromatic

#58221B #873529 #B64737 #CE6B5C #DC968B

Accessibility & contrast

On white

5.32

#B64737 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#B64737 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B64737

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B64737	#FFFFFF	#000000	##FFFFFF
##B64737	1.00	5.32	3.95	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655C35

Deuteranopia (green-blind)

#807434

Tritanopia (blue-blind)

#C82E44

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #b64737;
/* rgb */ color: rgb(182, 71, 55);
/* oklch */ color: oklch(54.5% 0.148 30.6);

Tailwind

colors: {
  custom: {
    50: '#d37f6e',
    500: '#b64737',
    950: '#000000',
  },
}

SCSS

$custom: #b64737;
$custom-light: #d37f6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b64737",
  "rgb": {
    "r": 182,
    "g": 71,
    "b": 55
  },
  "hsl": {
    "h": 7.559,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54491,
    "c": 0.14753,
    "h": 30.6
  },
  "luminance": 0.14727
}

Semantic roles & 50–950 ramp

primary

#B64737

secondary

#82BEC6

accent

#CBDD4B

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B64737

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

Preview Lab → · Contrast checker → · Palette generator →