#B33E2F#B33E2F

#B33E2F is a mid, vivid red. Relative luminance 0.132; OKLCH L 52.7% C 0.155 H 30.3°. Best body text is #FFFFFF at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#B33E2F
RGB	rgb(179, 62, 47)
HSL	hsl(7, 58%, 44%)
HSV	hsv(7, 74%, 70%)
CMYK	cmyk(0%, 65.4%, 73.7%, 29.8%)
CIE-LAB	lab(43.12, 46.62, 34.64)
CIE-LCH	lch(43.12, 58.08, 36.61°)
OKLab	oklab(52.75% 0.1338 0.0781)
OKLCH	oklch(52.75% 0.155 30.3)
XYZ	xyz(20.8284, 13.2372, 4.1471)
Luminance	0.1323 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33E2F #2FA4B3

analogous

#B32F62 #B33E2F #B3802F

triadic

#B33E2F #2FB33E #3E2FB3

tetradic

#B33E2F #62B32F #2FA4B3 #802FB3

square

#B33E2F #62B32F #2FA4B3 #802FB3

split-complementary

#B33E2F #2FB380 #2F62B3

monochromatic

#521C16 #832D22 #B33E2F #D15D4F #DD8A7F

Accessibility & contrast

On white

5.76

#B33E2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.65

#B33E2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33E2F

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33E2F	#FFFFFF	#000000	##FFFFFF
##B33E2F	1.00	5.76	3.65	5.76
#FFFFFF	5.76	1.00	21.00	1.00
#000000	3.65	21.00	1.00	21.00
##FFFFFF	5.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F562D

Deuteranopia (green-blind)

#7C6F2B

Tritanopia (blue-blind)

#C51F3B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b33e2f;
/* rgb */ color: rgb(179, 62, 47);
/* oklch */ color: oklch(52.7% 0.155 30.3);

Tailwind

colors: {
  custom: {
    50: '#d17968',
    500: '#b33e2f',
    950: '#000000',
  },
}

SCSS

$custom: #b33e2f;
$custom-light: #d17968;
$custom-dark: #000000;

JSON

{
  "hex": "#b33e2f",
  "rgb": {
    "r": 179,
    "g": 62,
    "b": 47
  },
  "hsl": {
    "h": 6.818,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.52746,
    "c": 0.15489,
    "h": 30.3
  },
  "luminance": 0.13234
}

Semantic roles & 50–950 ramp

primary

#B33E2F

secondary

#78BDC6

accent

#D0E246

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33E2F

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

Preview Lab → · Contrast checker → · Palette generator →