#B33838#B33838

#B33838 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.159 H 24.5°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#B33838
RGB	rgb(179, 56, 56)
HSL	hsl(0, 52%, 46%)
HSV	hsv(0, 69%, 70%)
CMYK	cmyk(0%, 68.7%, 68.7%, 29.8%)
CIE-LAB	lab(42.31, 49.59, 28.43)
CIE-LCH	lch(42.31, 57.17, 29.83°)
OKLab	oklab(52.18% 0.145 0.0662)
OKLCH	oklch(52.18% 0.159 24.5)
XYZ	xyz(20.7206, 12.7006, 5.1010)
Luminance	0.1270 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33838 #38B3B3

analogous

#B33875 #B33838 #B37538

triadic

#B33838 #38B338 #3838B3

tetradic

#B33838 #75B338 #38B3B3 #7538B3

square

#B33838 #75B338 #38B3B3 #7538B3

split-complementary

#B33838 #38B375 #3875B3

monochromatic

#561B1B #842929 #B33838 #CC5C5C #DB8B8B

Accessibility & contrast

On white

5.93

#B33838 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#B33838 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33838

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33838	#FFFFFF	#000000	##FFFFFF
##B33838	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5337

Deuteranopia (green-blind)

#796E34

Tritanopia (blue-blind)

#C51539

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33838;
/* rgb */ color: rgb(179, 56, 56);
/* oklch */ color: oklch(52.2% 0.159 24.5);

Tailwind

colors: {
  custom: {
    50: '#d1766e',
    500: '#b33838',
    950: '#000000',
  },
}

SCSS

$custom: #b33838;
$custom-light: #d1766e;
$custom-dark: #000000;

JSON

{
  "hex": "#b33838",
  "rgb": {
    "r": 179,
    "g": 56,
    "b": 56
  },
  "hsl": {
    "h": 0,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52177,
    "c": 0.15937,
    "h": 24.5
  },
  "luminance": 0.12698
}

Semantic roles & 50–950 ramp

primary

#B33838

secondary

#82C5C5

accent

#DCDC4C

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33838

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

Preview Lab → · Contrast checker → · Palette generator →