#B02539#B02539

#B02539 is a mid, vivid red. Relative luminance 0.108; OKLCH L 49.9% C 0.174 H 19.0°. Best body text is #FFFFFF at 6.63:1 contrast (WCAG AA passes).

Color values

HEX	#B02539
RGB	rgb(176, 37, 57)
HSL	hsl(351, 65%, 42%)
HSV	hsv(351, 79%, 69%)
CMYK	cmyk(0%, 79%, 67.6%, 31%)
CIE-LAB	lab(39.33, 55.43, 24.02)
CIE-LCH	lch(39.33, 60.41, 23.43°)
OKLab	oklab(49.86% 0.1642 0.0566)
OKLCH	oklch(49.86% 0.174 19)
XYZ	xyz(19.3067, 10.8516, 4.9481)
Luminance	0.1085 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B02539 #25B09C

analogous

#B0257F #B02539 #B05725

triadic

#B02539 #39B025 #2539B0

tetradic

#B02539 #7FB025 #25B09C #5725B0

square

#B02539 #7FB025 #25B09C #5725B0

split-complementary

#B02539 #25B057 #257FB0

monochromatic

#4B1018 #7D1A29 #B02539 #D63C52 #E16F7F

Accessibility & contrast

On white

6.63

#B02539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.17

#B02539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B02539

6.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B02539	#FFFFFF	#000000	##FFFFFF
##B02539	1.00	6.63	3.17	6.63
#FFFFFF	6.63	1.00	21.00	1.00
#000000	3.17	21.00	1.00	21.00
##FFFFFF	6.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4A39

Deuteranopia (green-blind)

#716735

Tritanopia (blue-blind)

#C1002E

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #b02539;
/* rgb */ color: rgb(176, 37, 57);
/* oklch */ color: oklch(49.9% 0.174 19.0);

Tailwind

colors: {
  custom: {
    50: '#d06d6f',
    500: '#b02539',
    950: '#000000',
  },
}

SCSS

$custom: #b02539;
$custom-light: #d06d6f;
$custom-dark: #000000;

JSON

{
  "hex": "#b02539",
  "rgb": {
    "r": 176,
    "g": 37,
    "b": 57
  },
  "hsl": {
    "h": 351.367,
    "s": 65.258,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49861,
    "c": 0.17365,
    "h": 19
  },
  "luminance": 0.10849
}

Semantic roles & 50–950 ramp

primary

#B02539

secondary

#6AC7BA

accent

#E8D040

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #B02539

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

Preview Lab → · Contrast checker → · Palette generator →