#B33B24#B33B24

#B33B24 is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.3% C 0.160 H 32.9°. Best body text is #FFFFFF at 5.89:1 contrast (WCAG AA passes).

Color values

HEX	#B33B24
RGB	rgb(179, 59, 36)
HSL	hsl(10, 67%, 42%)
HSV	hsv(10, 80%, 70%)
CMYK	cmyk(0%, 67%, 79.9%, 29.8%)
CIE-LAB	lab(42.52, 47.47, 40.03)
CIE-LCH	lch(42.52, 62.10, 40.14°)
OKLab	oklab(52.26% 0.1342 0.0869)
OKLCH	oklch(52.26% 0.16 32.9)
XYZ	xyz(20.4751, 12.8420, 3.0694)
Luminance	0.1284 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33B24 #249CB3

analogous

#B32455 #B33B24 #B38224

triadic

#B33B24 #24B33B #3B24B3

tetradic

#B33B24 #55B324 #249CB3 #8224B3

square

#B33B24 #55B324 #249CB3 #8224B3

split-complementary

#B33B24 #24B382 #2455B3

monochromatic

#4D1910 #802A1A #B33B24 #D8553C #E2826F

Accessibility & contrast

On white

5.89

#B33B24 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#B33B24 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33B24

5.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33B24	#FFFFFF	#000000	##FFFFFF
##B33B24	1.00	5.89	3.57	5.89
#FFFFFF	5.89	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5420

Deuteranopia (green-blind)

#7B6E1F

Tritanopia (blue-blind)

#C51637

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #b33b24;
/* rgb */ color: rgb(179, 59, 36);
/* oklch */ color: oklch(52.3% 0.160 32.9);

Tailwind

colors: {
  custom: {
    50: '#d27761',
    500: '#b33b24',
    950: '#000000',
  },
}

SCSS

$custom: #b33b24;
$custom-light: #d27761;
$custom-dark: #000000;

JSON

{
  "hex": "#b33b24",
  "rgb": {
    "r": 179,
    "g": 59,
    "b": 36
  },
  "hsl": {
    "h": 9.65,
    "s": 66.512,
    "l": 42.157
  },
  "oklch": {
    "l": 0.52262,
    "c": 0.1599,
    "h": 32.9
  },
  "luminance": 0.12839
}

Semantic roles & 50–950 ramp

primary

#B33B24

secondary

#6AB9C9

accent

#CEE93E

background

#FEF7F5

surface

#FCEEEA

border

#D5C9C6

text

#160905

muted

#847B79

Preview Lab

Preview with #B33B24

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

Preview Lab → · Contrast checker → · Palette generator →