#B33938#B33938

#B33938 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.158 H 24.9°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#B33938
RGB	rgb(179, 57, 56)
HSL	hsl(0, 52%, 46%)
HSV	hsv(0, 69%, 70%)
CMYK	cmyk(0%, 68.2%, 68.7%, 29.8%)
CIE-LAB	lab(42.46, 49.19, 28.61)
CIE-LCH	lch(42.46, 56.90, 30.19°)
OKLab	oklab(52.29% 0.1437 0.0666)
OKLCH	oklch(52.29% 0.158 24.9)
XYZ	xyz(20.7695, 12.7985, 5.1173)
Luminance	0.1280 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33938 #38B2B3

analogous

#B33874 #B33938 #B37638

triadic

#B33938 #38B339 #3938B3

tetradic

#B33938 #74B338 #38B2B3 #7638B3

square

#B33938 #74B338 #38B2B3 #7638B3

split-complementary

#B33938 #38B376 #3874B3

monochromatic

#561B1B #842A29 #B33938 #CC5D5C #DB8B8B

Accessibility & contrast

On white

5.90

#B33938 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#B33938 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33938

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33938	#FFFFFF	#000000	##FFFFFF
##B33938	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)

#5B5437

Deuteranopia (green-blind)

#796E34

Tritanopia (blue-blind)

#C5173A

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33938;
/* rgb */ color: rgb(179, 57, 56);
/* oklch */ color: oklch(52.3% 0.158 24.9);

Tailwind

colors: {
  custom: {
    50: '#d1776e',
    500: '#b33938',
    950: '#000000',
  },
}

SCSS

$custom: #b33938;
$custom-light: #d1776e;
$custom-dark: #000000;

JSON

{
  "hex": "#b33938",
  "rgb": {
    "r": 179,
    "g": 57,
    "b": 56
  },
  "hsl": {
    "h": 0.488,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52289,
    "c": 0.15836,
    "h": 24.9
  },
  "luminance": 0.12795
}

Semantic roles & 50–950 ramp

primary

#B33938

secondary

#82C4C5

accent

#DBDC4C

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33938

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

Preview Lab → · Contrast checker → · Palette generator →