#B64437#B64437

#B64437 is a mid, vivid red. Relative luminance 0.144; OKLCH L 54.1% C 0.151 H 29.4°. Best body text is #FFFFFF at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#B64437
RGB	rgb(182, 68, 55)
HSL	hsl(6, 54%, 46%)
HSV	hsv(6, 70%, 71%)
CMYK	cmyk(0%, 62.6%, 69.8%, 28.6%)
CIE-LAB	lab(44.74, 45.41, 32.05)
CIE-LCH	lch(44.74, 55.58, 35.22°)
OKLab	oklab(54.1% 0.1312 0.0739)
OKLCH	oklch(54.1% 0.151 29.4)
XYZ	xyz(22.0504, 14.3582, 5.2240)
Luminance	0.1436 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B64437 #37A9B6

analogous

#B6376A #B64437 #B68437

triadic

#B64437 #37B644 #4437B6

tetradic

#B64437 #6AB637 #37A9B6 #8437B6

square

#B64437 #6AB637 #37A9B6 #8437B6

split-complementary

#B64437 #37B684 #376AB6

monochromatic

#58211B #873229 #B64437 #CE685C #DC948B

Accessibility & contrast

On white

5.42

#B64437 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.87

#B64437 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B64437

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B64437	#FFFFFF	#000000	##FFFFFF
##B64437	1.00	5.42	3.87	5.42
#FFFFFF	5.42	1.00	21.00	1.00
#000000	3.87	21.00	1.00	21.00
##FFFFFF	5.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635A35

Deuteranopia (green-blind)

#7F7334

Tritanopia (blue-blind)

#C82A42

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #b64437;
/* rgb */ color: rgb(182, 68, 55);
/* oklch */ color: oklch(54.1% 0.151 29.4);

Tailwind

colors: {
  custom: {
    50: '#d37d6e',
    500: '#b64437',
    950: '#000000',
  },
}

SCSS

$custom: #b64437;
$custom-light: #d37d6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b64437",
  "rgb": {
    "r": 182,
    "g": 68,
    "b": 55
  },
  "hsl": {
    "h": 6.142,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.54099,
    "c": 0.1506,
    "h": 29.4
  },
  "luminance": 0.14355
}

Semantic roles & 50–950 ramp

primary

#B64437

secondary

#82BFC6

accent

#CEDD4B

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B64437

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

Preview Lab → · Contrast checker → · Palette generator →