#B33D3E#B33D3E

#B33D3E is a mid, vivid red. Relative luminance 0.133; OKLCH L 52.9% C 0.153 H 23.6°. Best body text is #FFFFFF at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#B33D3E
RGB	rgb(179, 61, 62)
HSL	hsl(359, 49%, 47%)
HSV	hsv(359, 66%, 70%)
CMYK	cmyk(0%, 65.9%, 65.4%, 29.8%)
CIE-LAB	lab(43.17, 47.85, 25.89)
CIE-LCH	lch(43.17, 54.41, 28.41°)
OKLab	oklab(52.85% 0.1407 0.0613)
OKLCH	oklch(52.85% 0.153 23.6)
XYZ	xyz(21.1308, 13.2719, 6.0055)
Luminance	0.1327 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33D3E #3DB3B2

analogous

#B33D79 #B33D3E #B3773D

triadic

#B33D3E #3EB33D #3D3EB3

tetradic

#B33D3E #79B33D #3DB3B2 #773DB3

square

#B33D3E #79B33D #3DB3B2 #773DB3

split-complementary

#B33D3E #3DB377 #3D79B3

monochromatic

#581E1E #852D2E #B33D3E #CA6364 #D99192

Accessibility & contrast

On white

5.75

#B33D3E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B33D3E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33D3E

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33D3E	#FFFFFF	#000000	##FFFFFF
##B33D3E	1.00	5.75	3.65	5.75
#FFFFFF	5.75	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C563D

Deuteranopia (green-blind)

#7A6F3B

Tritanopia (blue-blind)

#C4213F

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33d3e;
/* rgb */ color: rgb(179, 61, 62);
/* oklch */ color: oklch(52.9% 0.153 23.6);

Tailwind

colors: {
  custom: {
    50: '#d17973',
    500: '#b33d3e',
    950: '#000000',
  },
}

SCSS

$custom: #b33d3e;
$custom-light: #d17973;
$custom-dark: #000000;

JSON

{
  "hex": "#b33d3e",
  "rgb": {
    "r": 179,
    "g": 61,
    "b": 62
  },
  "hsl": {
    "h": 359.492,
    "s": 49.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.52852,
    "c": 0.15347,
    "h": 23.6
  },
  "luminance": 0.13269
}

Semantic roles & 50–950 ramp

primary

#B33D3E

secondary

#87C5C4

accent

#D9D84F

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B33D3E

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

Preview Lab → · Contrast checker → · Palette generator →