#B33D39#B33D39

#B33D39 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.8% C 0.154 H 25.8°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#B33D39
RGB	rgb(179, 61, 57)
HSL	hsl(2, 52%, 46%)
HSV	hsv(2, 68%, 70%)
CMYK	cmyk(0%, 65.9%, 68.2%, 29.8%)
CIE-LAB	lab(43.09, 47.56, 28.79)
CIE-LCH	lch(43.09, 55.59, 31.18°)
OKLab	oklab(52.77% 0.1388 0.0671)
OKLCH	oklch(52.77% 0.154 25.8)
XYZ	xyz(20.9998, 13.2196, 5.3159)
Luminance	0.1322 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33D39 #39AFB3

analogous

#B33972 #B33D39 #B37A39

triadic

#B33D39 #39B33D #3D39B3

tetradic

#B33D39 #72B339 #39AFB3 #7A39B3

square

#B33D39 #72B339 #39AFB3 #7A39B3

split-complementary

#B33D39 #39B37A #3972B3

monochromatic

#561D1B #852D2A #B33D39 #CC615E #DA8F8C

Accessibility & contrast

On white

5.76

#B33D39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B33D39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D39

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33D39	#FFFFFF	#000000	##FFFFFF
##B33D39	1.00	5.76	3.64	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5638

Deuteranopia (green-blind)

#7B6F36

Tritanopia (blue-blind)

#C4203D

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33d39;
/* rgb */ color: rgb(179, 61, 57);
/* oklch */ color: oklch(52.8% 0.154 25.8);

Tailwind

colors: {
  custom: {
    50: '#d1796f',
    500: '#b33d39',
    950: '#000000',
  },
}

SCSS

$custom: #b33d39;
$custom-light: #d1796f;
$custom-dark: #000000;

JSON

{
  "hex": "#b33d39",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 57
  },
  "hsl": {
    "h": 1.967,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52769,
    "c": 0.15414,
    "h": 25.8
  },
  "luminance": 0.13217
}

Semantic roles & 50–950 ramp

primary

#B33D39

secondary

#83C3C5

accent

#D6DB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #B33D39

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

Preview Lab → · Contrast checker → · Palette generator →