#B33E2B#B33E2B

#B33E2B is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.156 H 31.7°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B33E2B
RGB	rgb(179, 62, 43)
HSL	hsl(8, 61%, 44%)
HSV	hsv(8, 76%, 70%)
CMYK	cmyk(0%, 65.4%, 76%, 29.8%)
CIE-LAB	lab(43.07, 46.45, 36.83)
CIE-LCH	lch(43.07, 59.28, 38.41°)
OKLab	oklab(52.7% 0.1324 0.0819)
OKLCH	oklch(52.7% 0.156 31.7)
XYZ	xyz(20.7514, 13.2064, 3.7414)
Luminance	0.1320 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33E2B #2BA0B3

analogous

#B32B5C #B33E2B #B3822B

triadic

#B33E2B #2BB33E #3E2BB3

tetradic

#B33E2B #5CB32B #2BA0B3 #822BB3

square

#B33E2B #5CB32B #2BA0B3 #822BB3

split-complementary

#B33E2B #2BB382 #2B5CB3

monochromatic

#501C13 #822D1F #B33E2B #D35C48 #DF8879

Accessibility & contrast

On white

5.77

#B33E2B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B33E2B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33E2B

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33E2B	#FFFFFF	#000000	##FFFFFF
##B33E2B	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5528

Deuteranopia (green-blind)

#7C6F27

Tritanopia (blue-blind)

#C51E3A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33e2b;
/* rgb */ color: rgb(179, 62, 43);
/* oklch */ color: oklch(52.7% 0.156 31.7);

Tailwind

colors: {
  custom: {
    50: '#d27965',
    500: '#b33e2b',
    950: '#000000',
  },
}

SCSS

$custom: #b33e2b;
$custom-light: #d27965;
$custom-dark: #000000;

JSON

{
  "hex": "#b33e2b",
  "rgb": {
    "r": 179,
    "g": 62,
    "b": 43
  },
  "hsl": {
    "h": 8.382,
    "s": 61.261,
    "l": 43.529
  },
  "oklch": {
    "l": 0.52696,
    "c": 0.1557,
    "h": 31.7
  },
  "luminance": 0.13203
}

Semantic roles & 50–950 ramp

primary

#B33E2B

secondary

#73BBC7

accent

#CEE443

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B33E2B

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

Preview Lab → · Contrast checker → · Palette generator →