#B33A2E#B33A2E

#B33A2E is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.159 H 29.2°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B33A2E
RGB	rgb(179, 58, 46)
HSL	hsl(5, 59%, 44%)
HSV	hsv(5, 74%, 70%)
CMYK	cmyk(0%, 67.6%, 74.3%, 29.8%)
CIE-LAB	lab(42.48, 48.28, 34.49)
CIE-LCH	lch(42.48, 59.34, 35.54°)
OKLab	oklab(52.26% 0.1388 0.0775)
OKLCH	oklch(52.26% 0.159 29.2)
XYZ	xyz(20.5989, 12.8101, 3.9722)
Luminance	0.1281 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33A2E #2EA7B3

analogous

#B32E64 #B33A2E #B37D2E

triadic

#B33A2E #2EB33A #3A2EB3

tetradic

#B33A2E #64B32E #2EA7B3 #7D2EB3

square

#B33A2E #64B32E #2EA7B3 #7D2EB3

split-complementary

#B33A2E #2EB37D #2E64B3

monochromatic

#521A15 #822A21 #B33A2E #D1594D #DE867E

Accessibility & contrast

On white

5.90

#B33A2E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B33A2E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33A2E

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33A2E	#FFFFFF	#000000	##FFFFFF
##B33A2E	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C542C

Deuteranopia (green-blind)

#7A6E2A

Tritanopia (blue-blind)

#C51638

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33a2e;
/* rgb */ color: rgb(179, 58, 46);
/* oklch */ color: oklch(52.3% 0.159 29.2);

Tailwind

colors: {
  custom: {
    50: '#d27767',
    500: '#b33a2e',
    950: '#000000',
  },
}

SCSS

$custom: #b33a2e;
$custom-light: #d27767;
$custom-dark: #000000;

JSON

{
  "hex": "#b33a2e",
  "rgb": {
    "r": 179,
    "g": 58,
    "b": 46
  },
  "hsl": {
    "h": 5.414,
    "s": 59.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.52259,
    "c": 0.15895,
    "h": 29.2
  },
  "luminance": 0.12807
}

Semantic roles & 50–950 ramp

primary

#B33A2E

secondary

#76BFC6

accent

#D4E246

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B33A2E

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

Preview Lab → · Contrast checker → · Palette generator →