#B33F24#B33F24

#B33F24 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.7% C 0.156 H 34.4°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B33F24
RGB	rgb(179, 63, 36)
HSL	hsl(11, 67%, 42%)
HSV	hsv(11, 80%, 70%)
CMYK	cmyk(0%, 64.8%, 79.9%, 29.8%)
CIE-LAB	lab(43.17, 45.74, 40.68)
CIE-LCH	lch(43.17, 61.21, 41.64°)
OKLab	oklab(52.74% 0.1289 0.0883)
OKLCH	oklch(52.74% 0.156 34.4)
XYZ	xyz(20.6887, 13.2691, 3.1405)
Luminance	0.1327 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F24 #2498B3

analogous

#B32450 #B33F24 #B38724

triadic

#B33F24 #24B33F #3F24B3

tetradic

#B33F24 #50B324 #2498B3 #8724B3

square

#B33F24 #50B324 #2498B3 #8724B3

split-complementary

#B33F24 #24B387 #2450B3

monochromatic

#4D1B10 #802D1A #B33F24 #D85A3C #E2856F

Accessibility & contrast

On white

5.75

#B33F24 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B33F24 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F24

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F24	#FFFFFF	#000000	##FFFFFF
##B33F24	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605620

Deuteranopia (green-blind)

#7D701F

Tritanopia (blue-blind)

#C51F3A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33f24;
/* rgb */ color: rgb(179, 63, 36);
/* oklch */ color: oklch(52.7% 0.156 34.4);

Tailwind

colors: {
  custom: {
    50: '#d27961',
    500: '#b33f24',
    950: '#000000',
  },
}

SCSS

$custom: #b33f24;
$custom-light: #d27961;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f24",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 36
  },
  "hsl": {
    "h": 11.329,
    "s": 66.512,
    "l": 42.157
  },
  "oklch": {
    "l": 0.52744,
    "c": 0.15621,
    "h": 34.4
  },
  "luminance": 0.13266
}

Semantic roles & 50–950 ramp

primary

#B33F24

secondary

#6AB7C9

accent

#C9E93E

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B33F24

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

Preview Lab → · Contrast checker → · Palette generator →