#B33C2F#B33C2F

#B33C2F is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.5% C 0.157 H 29.5°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#B33C2F
RGB	rgb(179, 60, 47)
HSL	hsl(6, 58%, 44%)
HSV	hsv(6, 74%, 70%)
CMYK	cmyk(0%, 66.5%, 73.7%, 29.8%)
CIE-LAB	lab(42.80, 47.49, 34.28)
CIE-LCH	lch(42.80, 58.57, 35.82°)
OKLab	oklab(52.51% 0.1365 0.0773)
OKLCH	oklch(52.51% 0.157 29.5)
XYZ	xyz(20.7216, 13.0237, 4.1115)
Luminance	0.1302 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33C2F #2FA6B3

analogous

#B32F64 #B33C2F #B37E2F

triadic

#B33C2F #2FB33C #3C2FB3

tetradic

#B33C2F #64B32F #2FA6B3 #7E2FB3

square

#B33C2F #64B32F #2FA6B3 #7E2FB3

split-complementary

#B33C2F #2FB37E #2F64B3

monochromatic

#521C16 #832C22 #B33C2F #D15B4F #DD887F

Accessibility & contrast

On white

5.83

#B33C2F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B33C2F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33C2F

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33C2F	#FFFFFF	#000000	##FFFFFF
##B33C2F	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D552D

Deuteranopia (green-blind)

#7B6F2B

Tritanopia (blue-blind)

#C51B3A

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b33c2f;
/* rgb */ color: rgb(179, 60, 47);
/* oklch */ color: oklch(52.5% 0.157 29.5);

Tailwind

colors: {
  custom: {
    50: '#d27868',
    500: '#b33c2f',
    950: '#000000',
  },
}

SCSS

$custom: #b33c2f;
$custom-light: #d27868;
$custom-dark: #000000;

JSON

{
  "hex": "#b33c2f",
  "rgb": {
    "r": 179,
    "g": 60,
    "b": 47
  },
  "hsl": {
    "h": 5.909,
    "s": 58.407,
    "l": 44.314
  },
  "oklch": {
    "l": 0.52506,
    "c": 0.15684,
    "h": 29.5
  },
  "luminance": 0.13021
}

Semantic roles & 50–950 ramp

primary

#B33C2F

secondary

#78BEC6

accent

#D2E246

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #B33C2F

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

Preview Lab → · Contrast checker → · Palette generator →