#B33A38#B33A38

#B33A38 is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.4% C 0.157 H 25.2°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#B33A38
RGB	rgb(179, 58, 56)
HSL	hsl(1, 52%, 46%)
HSV	hsv(1, 69%, 70%)
CMYK	cmyk(0%, 67.6%, 68.7%, 29.8%)
CIE-LAB	lab(42.61, 48.78, 28.80)
CIE-LCH	lch(42.61, 56.64, 30.56°)
OKLab	oklab(52.4% 0.1424 0.067)
OKLCH	oklch(52.4% 0.157 25.2)
XYZ	xyz(20.8195, 12.8983, 5.1340)
Luminance	0.1290 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33A38 #38B1B3

analogous

#B33873 #B33A38 #B37738

triadic

#B33A38 #38B33A #3A38B3

tetradic

#B33A38 #73B338 #38B1B3 #7738B3

square

#B33A38 #73B338 #38B1B3 #7738B3

split-complementary

#B33A38 #38B377 #3873B3

monochromatic

#561C1B #842B29 #B33A38 #CC5E5C #DB8C8B

Accessibility & contrast

On white

5.87

#B33A38 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B33A38 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33A38

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33A38	#FFFFFF	#000000	##FFFFFF
##B33A38	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5437

Deuteranopia (green-blind)

#7A6E34

Tritanopia (blue-blind)

#C5193B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33a38;
/* rgb */ color: rgb(179, 58, 56);
/* oklch */ color: oklch(52.4% 0.157 25.2);

Tailwind

colors: {
  custom: {
    50: '#d1776f',
    500: '#b33a38',
    950: '#000000',
  },
}

SCSS

$custom: #b33a38;
$custom-light: #d1776f;
$custom-dark: #000000;

JSON

{
  "hex": "#b33a38",
  "rgb": {
    "r": 179,
    "g": 58,
    "b": 56
  },
  "hsl": {
    "h": 0.976,
    "s": 52.34,
    "l": 46.078
  },
  "oklch": {
    "l": 0.52402,
    "c": 0.15735,
    "h": 25.2
  },
  "luminance": 0.12895
}

Semantic roles & 50–950 ramp

primary

#B33A38

secondary

#82C4C5

accent

#D9DC4C

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33A38

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

Preview Lab → · Contrast checker → · Palette generator →