#B33D33#B33D33

#B33D33 is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.155 H 28.3°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#B33D33
RGB	rgb(179, 61, 51)
HSL	hsl(5, 56%, 45%)
HSV	hsv(5, 72%, 70%)
CMYK	cmyk(0%, 65.9%, 71.5%, 29.8%)
CIE-LAB	lab(43.01, 47.25, 32.21)
CIE-LCH	lch(43.01, 57.18, 34.29°)
OKLab	oklab(52.68% 0.1365 0.0736)
OKLCH	oklch(52.68% 0.155 28.3)
XYZ	xyz(20.8589, 13.1632, 4.5737)
Luminance	0.1316 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33D33 #33A9B3

analogous

#B33369 #B33D33 #B37D33

triadic

#B33D33 #33B33D #3D33B3

tetradic

#B33D33 #69B333 #33A9B3 #7D33B3

square

#B33D33 #69B333 #33A9B3 #7D33B3

split-complementary

#B33D33 #33B37D #3369B3

monochromatic

#541D18 #832D25 #B33D33 #CE5E55 #DC8B84

Accessibility & contrast

On white

5.78

#B33D33 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#B33D33 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D33

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33D33	#FFFFFF	#000000	##FFFFFF
##B33D33	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5531

Deuteranopia (green-blind)

#7B6F2F

Tritanopia (blue-blind)

#C51E3B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33d33;
/* rgb */ color: rgb(179, 61, 51);
/* oklch */ color: oklch(52.7% 0.155 28.3);

Tailwind

colors: {
  custom: {
    50: '#d1796b',
    500: '#b33d33',
    950: '#000000',
  },
}

SCSS

$custom: #b33d33;
$custom-light: #d1796b;
$custom-dark: #000000;

JSON

{
  "hex": "#b33d33",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 51
  },
  "hsl": {
    "h": 4.688,
    "s": 55.652,
    "l": 45.098
  },
  "oklch": {
    "l": 0.52679,
    "c": 0.15513,
    "h": 28.3
  },
  "luminance": 0.1316
}

Semantic roles & 50–950 ramp

primary

#B33D33

secondary

#7CC0C6

accent

#D3DF49

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33D33

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

Preview Lab → · Contrast checker → · Palette generator →