#B33E31#B33E31

#B33E31 is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.8% C 0.154 H 29.5°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B33E31
RGB	rgb(179, 62, 49)
HSL	hsl(6, 57%, 45%)
HSV	hsv(6, 73%, 70%)
CMYK	cmyk(0%, 65.4%, 72.6%, 29.8%)
CIE-LAB	lab(43.14, 46.72, 33.52)
CIE-LCH	lch(43.14, 57.50, 35.66°)
OKLab	oklab(52.77% 0.1345 0.0761)
OKLCH	oklch(52.77% 0.155 29.5)
XYZ	xyz(20.8696, 13.2537, 4.3644)
Luminance	0.1325 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33E31 #31A6B3

analogous

#B33165 #B33E31 #B37F31

triadic

#B33E31 #31B33E #3E31B3

tetradic

#B33E31 #65B331 #31A6B3 #7F31B3

square

#B33E31 #65B331 #31A6B3 #7F31B3

split-complementary

#B33E31 #31B37F #3165B3

monochromatic

#531D17 #832D24 #B33E31 #D05E52 #DD8B82

Accessibility & contrast

On white

5.75

#B33E31 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B33E31 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33E31

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33E31	#FFFFFF	#000000	##FFFFFF
##B33E31	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)

#5E562F

Deuteranopia (green-blind)

#7C6F2D

Tritanopia (blue-blind)

#C51F3C

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33e31;
/* rgb */ color: rgb(179, 62, 49);
/* oklch */ color: oklch(52.8% 0.154 29.5);

Tailwind

colors: {
  custom: {
    50: '#d1796a',
    500: '#b33e31',
    950: '#000000',
  },
}

SCSS

$custom: #b33e31;
$custom-light: #d1796a;
$custom-dark: #000000;

JSON

{
  "hex": "#b33e31",
  "rgb": {
    "r": 179,
    "g": 62,
    "b": 49
  },
  "hsl": {
    "h": 6,
    "s": 57.018,
    "l": 44.706
  },
  "oklch": {
    "l": 0.52772,
    "c": 0.1545,
    "h": 29.5
  },
  "luminance": 0.13251
}

Semantic roles & 50–950 ramp

primary

#B33E31

secondary

#7ABEC6

accent

#D1E048

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33E31

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

Preview Lab → · Contrast checker → · Palette generator →