#B64037#B64037

#B64037 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.6% C 0.155 H 27.8°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#B64037
RGB	rgb(182, 64, 55)
HSL	hsl(4, 54%, 46%)
HSV	hsv(4, 70%, 71%)
CMYK	cmyk(0%, 64.8%, 69.8%, 28.6%)
CIE-LAB	lab(44.08, 47.19, 31.27)
CIE-LCH	lch(44.08, 56.61, 33.53°)
OKLab	oklab(53.6% 0.1368 0.0721)
OKLCH	oklch(53.6% 0.155 27.8)
XYZ	xyz(21.8167, 13.8908, 5.1461)
Luminance	0.1389 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B64037 #37ADB6

analogous

#B6376E #B64037 #B68037

triadic

#B64037 #37B640 #4037B6

tetradic

#B64037 #6EB637 #37ADB6 #8037B6

square

#B64037 #6EB637 #37ADB6 #8037B6

split-complementary

#B64037 #37B680 #376EB6

monochromatic

#581F1B #872F29 #B64037 #CE645C #DC918B

Accessibility & contrast

On white

5.56

#B64037 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#B64037 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B64037

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B64037	#FFFFFF	#000000	##FFFFFF
##B64037	1.00	5.56	3.78	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605835

Deuteranopia (green-blind)

#7E7233

Tritanopia (blue-blind)

#C8233F

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b64037;
/* rgb */ color: rgb(182, 64, 55);
/* oklch */ color: oklch(53.6% 0.155 27.8);

Tailwind

colors: {
  custom: {
    50: '#d37b6e',
    500: '#b64037',
    950: '#000000',
  },
}

SCSS

$custom: #b64037;
$custom-light: #d37b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#b64037",
  "rgb": {
    "r": 182,
    "g": 64,
    "b": 55
  },
  "hsl": {
    "h": 4.252,
    "s": 53.586,
    "l": 46.471
  },
  "oklch": {
    "l": 0.53597,
    "c": 0.15468,
    "h": 27.8
  },
  "luminance": 0.13888
}

Semantic roles & 50–950 ramp

primary

#B64037

secondary

#82C2C6

accent

#D3DD4B

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #B64037

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

Preview Lab → · Contrast checker → · Palette generator →