#B33B3D#B33B3D

#B33B3D is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.6% C 0.156 H 23.3°. Best body text is #FFFFFF at 5.82:1 contrast (WCAG AA passes).

Color values

HEX	#B33B3D
RGB	rgb(179, 59, 61)
HSL	hsl(359, 50%, 47%)
HSV	hsv(359, 67%, 70%)
CMYK	cmyk(0%, 67%, 65.9%, 29.8%)
CIE-LAB	lab(42.84, 48.64, 26.08)
CIE-LCH	lch(42.84, 55.19, 28.20°)
OKLab	oklab(52.6% 0.143 0.0616)
OKLCH	oklch(52.6% 0.156 23.3)
XYZ	xyz(20.9988, 13.0515, 5.8274)
Luminance	0.1305 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33B3D #3BB3B1

analogous

#B33B79 #B33B3D #B3753B

triadic

#B33B3D #3DB33B #3B3DB3

tetradic

#B33B3D #79B33B #3BB3B1 #753BB3

square

#B33B3D #79B33B #3BB3B1 #753BB3

split-complementary

#B33B3D #3BB375 #3B79B3

monochromatic

#571D1E #852C2D #B33B3D #CB6062 #DA8E90

Accessibility & contrast

On white

5.82

#B33B3D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.61

#B33B3D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33B3D

5.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33B3D	#FFFFFF	#000000	##FFFFFF
##B33B3D	1.00	5.82	3.61	5.82
#FFFFFF	5.82	1.00	21.00	1.00
#000000	3.61	21.00	1.00	21.00
##FFFFFF	5.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B553C

Deuteranopia (green-blind)

#796F3A

Tritanopia (blue-blind)

#C41D3D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33b3d;
/* rgb */ color: rgb(179, 59, 61);
/* oklch */ color: oklch(52.6% 0.156 23.3);

Tailwind

colors: {
  custom: {
    50: '#d17872',
    500: '#b33b3d',
    950: '#000000',
  },
}

SCSS

$custom: #b33b3d;
$custom-light: #d17872;
$custom-dark: #000000;

JSON

{
  "hex": "#b33b3d",
  "rgb": {
    "r": 179,
    "g": 59,
    "b": 61
  },
  "hsl": {
    "h": 359,
    "s": 50.42,
    "l": 46.667
  },
  "oklch": {
    "l": 0.526,
    "c": 0.1557,
    "h": 23.3
  },
  "luminance": 0.13049
}

Semantic roles & 50–950 ramp

primary

#B33B3D

secondary

#85C5C4

accent

#DAD84E

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33B3D

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

Preview Lab → · Contrast checker → · Palette generator →