#B03E37#B03E37

#B03E37 is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.4% C 0.150 H 27.0°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#B03E37
RGB	rgb(176, 62, 55)
HSL	hsl(3, 52%, 45%)
HSV	hsv(3, 69%, 69%)
CMYK	cmyk(0%, 64.8%, 68.8%, 31%)
CIE-LAB	lab(42.69, 45.98, 29.37)
CIE-LCH	lch(42.69, 54.55, 32.57°)
OKLab	oklab(52.36% 0.1337 0.0682)
OKLCH	oklch(52.36% 0.15 27)
XYZ	xyz(20.3188, 12.9540, 5.0441)
Luminance	0.1295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03E37 #37A9B0

analogous

#B0376C #B03E37 #B07A37

triadic

#B03E37 #37B03E #3E37B0

tetradic

#B03E37 #6CB037 #37A9B0 #7A37B0

square

#B03E37 #6CB037 #37A9B0 #7A37B0

split-complementary

#B03E37 #37B07A #376CB0

monochromatic

#531D1A #812E28 #B03E37 #CB6059 #DA8C88

Accessibility & contrast

On white

5.85

#B03E37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#B03E37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03E37

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03E37	#FFFFFF	#000000	##FFFFFF
##B03E37	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D5535

Deuteranopia (green-blind)

#796E34

Tritanopia (blue-blind)

#C1233D

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b03e37;
/* rgb */ color: rgb(176, 62, 55);
/* oklch */ color: oklch(52.4% 0.150 27.0);

Tailwind

colors: {
  custom: {
    50: '#cf796e',
    500: '#b03e37',
    950: '#000000',
  },
}

SCSS

$custom: #b03e37;
$custom-light: #cf796e;
$custom-dark: #000000;

JSON

{
  "hex": "#b03e37",
  "rgb": {
    "r": 176,
    "g": 62,
    "b": 55
  },
  "hsl": {
    "h": 3.471,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52361,
    "c": 0.15012,
    "h": 27
  },
  "luminance": 0.12951
}

Semantic roles & 50–950 ramp

primary

#B03E37

secondary

#7FC0C4

accent

#D3DC4C

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03E37

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

Preview Lab → · Contrast checker → · Palette generator →