#B03636#B03636

#B03636 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.4% C 0.158 H 24.6°. Best body text is #FFFFFF at 6.13:1 contrast (WCAG AA passes).

Color values

HEX	#B03636
RGB	rgb(176, 54, 54)
HSL	hsl(0, 53%, 45%)
HSV	hsv(0, 69%, 69%)
CMYK	cmyk(0%, 69.3%, 69.3%, 31%)
CIE-LAB	lab(41.43, 49.30, 28.45)
CIE-LCH	lch(41.43, 56.92, 29.99°)
OKLab	oklab(51.41% 0.144 0.066)
OKLCH	oklch(51.41% 0.158 24.6)
XYZ	xyz(19.8916, 12.1377, 4.7847)
Luminance	0.1213 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03636 #36B0B0

analogous

#B03673 #B03636 #B07336

triadic

#B03636 #36B036 #3636B0

tetradic

#B03636 #73B036 #36B0B0 #7336B0

square

#B03636 #73B036 #36B0B0 #7336B0

split-complementary

#B03636 #36B073 #3673B0

monochromatic

#521919 #812828 #B03636 #CC5858 #DA8686

Accessibility & contrast

On white

6.13

#B03636 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.43

#B03636 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03636

6.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03636	#FFFFFF	#000000	##FFFFFF
##B03636	1.00	6.13	3.43	6.13
#FFFFFF	6.13	1.00	21.00	1.00
#000000	3.43	21.00	1.00	21.00
##FFFFFF	6.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585135

Deuteranopia (green-blind)

#766B32

Tritanopia (blue-blind)

#C11137

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b03636;
/* rgb */ color: rgb(176, 54, 54);
/* oklch */ color: oklch(51.4% 0.158 24.6);

Tailwind

colors: {
  custom: {
    50: '#cf756d',
    500: '#b03636',
    950: '#000000',
  },
}

SCSS

$custom: #b03636;
$custom-light: #cf756d;
$custom-dark: #000000;

JSON

{
  "hex": "#b03636",
  "rgb": {
    "r": 176,
    "g": 54,
    "b": 54
  },
  "hsl": {
    "h": 0,
    "s": 53.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51412,
    "c": 0.1584,
    "h": 24.6
  },
  "luminance": 0.12135
}

Semantic roles & 50–950 ramp

primary

#B03636

secondary

#7EC4C4

accent

#DCDC4B

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #B03636

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

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