#B33315#B33315

#B33315 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.169 H 34.0°. Best body text is #FFFFFF at 6.17:1 contrast (WCAG AA passes).

Color values

HEX	#B33315
RGB	rgb(179, 51, 21)
HSL	hsl(11, 79%, 39%)
HSV	hsv(11, 88%, 70%)
CMYK	cmyk(0%, 71.5%, 88.3%, 29.8%)
CIE-LAB	lab(41.23, 50.28, 46.09)
CIE-LCH	lch(41.23, 68.21, 42.51°)
OKLab	oklab(51.26% 0.1404 0.0947)
OKLCH	oklch(51.26% 0.169 34)
XYZ	xyz(19.9120, 12.0086, 1.9788)
Luminance	0.1201 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33315 #1595B3

analogous

#B31546 #B33315 #B38215

triadic

#B33315 #15B333 #3315B3

tetradic

#B33315 #46B315 #1595B3 #8215B3

square

#B33315 #46B315 #1595B3 #8215B3

split-complementary

#B33315 #15B382 #1546B3

monochromatic

#451408 #7C230F #B33315 #E54620 #EB7357

Accessibility & contrast

On white

6.17

#B33315 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#B33315 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33315

6.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33315	#FFFFFF	#000000	##FFFFFF
##B33315	1.00	6.17	3.40	6.17
#FFFFFF	6.17	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A4F0E

Deuteranopia (green-blind)

#796C0B

Tritanopia (blue-blind)

#C6002E

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b33315;
/* rgb */ color: rgb(179, 51, 21);
/* oklch */ color: oklch(51.3% 0.169 34.0);

Tailwind

colors: {
  custom: {
    50: '#d37357',
    500: '#b33315',
    950: '#000000',
  },
}

SCSS

$custom: #b33315;
$custom-light: #d37357;
$custom-dark: #000000;

JSON

{
  "hex": "#b33315",
  "rgb": {
    "r": 179,
    "g": 51,
    "b": 21
  },
  "hsl": {
    "h": 11.392,
    "s": 79,
    "l": 39.216
  },
  "oklch": {
    "l": 0.51255,
    "c": 0.16938,
    "h": 34
  },
  "luminance": 0.12006
}

Semantic roles & 50–950 ramp

primary

#B33315

secondary

#56B7CE

accent

#D0F532

background

#FEF7F5

surface

#FCEDE9

border

#D5C8C5

text

#160903

muted

#847B78

Preview Lab

Preview with #B33315

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

Preview Lab → · Contrast checker → · Palette generator →