#B33930#B33930

#B33930 is a mid, vivid red. Relative luminance 0.127; OKLCH L 52.2% C 0.160 H 28.1°. Best body text is #FFFFFF at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#B33930
RGB	rgb(179, 57, 48)
HSL	hsl(4, 58%, 45%)
HSV	hsv(4, 73%, 70%)
CMYK	cmyk(0%, 68.2%, 73.2%, 29.8%)
CIE-LAB	lab(42.35, 48.79, 33.20)
CIE-LCH	lch(42.35, 59.01, 34.23°)
OKLab	oklab(52.17% 0.1407 0.0752)
OKLCH	oklch(52.17% 0.16 28.1)
XYZ	xyz(20.5893, 12.7264, 4.1680)
Luminance	0.1272 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33930 #30AAB3

analogous

#B33069 #B33930 #B37B30

triadic

#B33930 #30B339 #3930B3

tetradic

#B33930 #69B330 #30AAB3 #7B30B3

square

#B33930 #69B330 #30AAB3 #7B30B3

split-complementary

#B33930 #30B37B #3069B3

monochromatic

#521A16 #832A23 #B33930 #D05950 #DD8780

Accessibility & contrast

On white

5.92

#B33930 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#B33930 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33930

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33930	#FFFFFF	#000000	##FFFFFF
##B33930	1.00	5.92	3.54	5.92
#FFFFFF	5.92	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B532E

Deuteranopia (green-blind)

#7A6E2C

Tritanopia (blue-blind)

#C51438

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33930;
/* rgb */ color: rgb(179, 57, 48);
/* oklch */ color: oklch(52.2% 0.160 28.1);

Tailwind

colors: {
  custom: {
    50: '#d27669',
    500: '#b33930',
    950: '#000000',
  },
}

SCSS

$custom: #b33930;
$custom-light: #d27669;
$custom-dark: #000000;

JSON

{
  "hex": "#b33930",
  "rgb": {
    "r": 179,
    "g": 57,
    "b": 48
  },
  "hsl": {
    "h": 4.122,
    "s": 57.709,
    "l": 44.51
  },
  "oklch": {
    "l": 0.52171,
    "c": 0.15957,
    "h": 28.1
  },
  "luminance": 0.12723
}

Semantic roles & 50–950 ramp

primary

#B33930

secondary

#79C1C6

accent

#D6E147

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B33930

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

Preview Lab → · Contrast checker → · Palette generator →