#B33F39#B33F39

#B33F39 is a mid, vivid red. Relative luminance 0.134; OKLCH L 53.0% C 0.152 H 26.6°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#B33F39
RGB	rgb(179, 63, 57)
HSL	hsl(3, 52%, 46%)
HSV	hsv(3, 68%, 70%)
CMYK	cmyk(0%, 64.8%, 68.2%, 29.8%)
CIE-LAB	lab(43.41, 46.69, 29.18)
CIE-LCH	lch(43.41, 55.06, 32.00°)
OKLab	oklab(53.01% 0.136 0.068)
OKLCH	oklch(53.01% 0.152 26.6)
XYZ	xyz(21.1086, 13.4371, 5.3522)
Luminance	0.1343 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B33F39 #39ADB3

analogous

#B33970 #B33F39 #B37C39

triadic

#B33F39 #39B33F #3F39B3

tetradic

#B33F39 #70B339 #39ADB3 #7C39B3

square

#B33F39 #70B339 #39ADB3 #7C39B3

split-complementary

#B33F39 #39B37C #3970B3

monochromatic

#561E1B #852F2A #B33F39 #CC635E #DA908C

Accessibility & contrast

On white

5.70

#B33F39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#B33F39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B33F39

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B33F39	#FFFFFF	#000000	##FFFFFF
##B33F39	1.00	5.70	3.69	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5738

Deuteranopia (green-blind)

#7B7036

Tritanopia (blue-blind)

#C4233E

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b33f39;
/* rgb */ color: rgb(179, 63, 57);
/* oklch */ color: oklch(53.0% 0.152 26.6);

Tailwind

colors: {
  custom: {
    50: '#d17a6f',
    500: '#b33f39',
    950: '#000000',
  },
}

SCSS

$custom: #b33f39;
$custom-light: #d17a6f;
$custom-dark: #000000;

JSON

{
  "hex": "#b33f39",
  "rgb": {
    "r": 179,
    "g": 63,
    "b": 57
  },
  "hsl": {
    "h": 2.951,
    "s": 51.695,
    "l": 46.275
  },
  "oklch": {
    "l": 0.53011,
    "c": 0.15206,
    "h": 26.6
  },
  "luminance": 0.13434
}

Semantic roles & 50–950 ramp

primary

#B33F39

secondary

#83C2C5

accent

#D4DB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B33F39

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

Preview Lab → · Contrast checker → · Palette generator →