#B33E2C#B33E2C

#B33E2C is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.155 H 31.4°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#B33E2C
RGB	rgb(179, 62, 44)
HSL	hsl(8, 61%, 44%)
HSV	hsv(8, 75%, 70%)
CMYK	cmyk(0%, 65.4%, 75.4%, 29.8%)
CIE-LAB	lab(43.08, 46.49, 36.29)
CIE-LCH	lch(43.08, 58.98, 37.97°)
OKLab	oklab(52.71% 0.1328 0.081)
OKLCH	oklch(52.71% 0.155 31.4)
XYZ	xyz(20.7699, 13.2138, 3.8392)
Luminance	0.1321 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33E2C #2CA1B3

analogous

#B32C5D #B33E2C #B3812C

triadic

#B33E2C #2CB33E #3E2CB3

tetradic

#B33E2C #5DB32C #2CA1B3 #812CB3

square

#B33E2C #5DB32C #2CA1B3 #812CB3

split-complementary

#B33E2C #2CB381 #2C5DB3

monochromatic

#511C14 #822D20 #B33E2C #D25C4A #DF887B

Accessibility & contrast

On white

5.77

#B33E2C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#B33E2C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33E2C

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33E2C	#FFFFFF	#000000	##FFFFFF
##B33E2C	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)

#5F5629

Deuteranopia (green-blind)

#7C6F28

Tritanopia (blue-blind)

#C51E3B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33e2c;
/* rgb */ color: rgb(179, 62, 44);
/* oklch */ color: oklch(52.7% 0.155 31.4);

Tailwind

colors: {
  custom: {
    50: '#d27966',
    500: '#b33e2c',
    950: '#000000',
  },
}

SCSS

$custom: #b33e2c;
$custom-light: #d27966;
$custom-dark: #000000;

JSON

{
  "hex": "#b33e2c",
  "rgb": {
    "r": 179,
    "g": 62,
    "b": 44
  },
  "hsl": {
    "h": 8,
    "s": 60.538,
    "l": 43.725
  },
  "oklch": {
    "l": 0.52708,
    "c": 0.15549,
    "h": 31.4
  },
  "luminance": 0.13211
}

Semantic roles & 50–950 ramp

primary

#B33E2C

secondary

#74BCC7

accent

#CEE444

background

#FEF7F6

surface

#FCEEEB

border

#D5C9C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #B33E2C

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

Preview Lab → · Contrast checker → · Palette generator →