#B0303D#B0303D

#B0303D is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.9% C 0.164 H 19.8°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#B0303D
RGB	rgb(176, 48, 61)
HSL	hsl(354, 57%, 44%)
HSV	hsv(354, 73%, 69%)
CMYK	cmyk(0%, 72.7%, 65.3%, 31%)
CIE-LAB	lab(40.71, 51.99, 23.28)
CIE-LCH	lch(40.71, 56.97, 24.12°)
OKLab	oklab(50.91% 0.154 0.0554)
OKLCH	oklch(50.91% 0.164 19.8)
XYZ	xyz(19.8058, 11.6838, 5.6263)
Luminance	0.1168 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0303D #30B0A3

analogous

#B0307D #B0303D #B06330

triadic

#B0303D #3DB030 #303DB0

tetradic

#B0303D #7DB030 #30B0A3 #6330B0

square

#B0303D #7DB030 #30B0A3 #6330B0

split-complementary

#B0303D #30B063 #307DB0

monochromatic

#50161C #80232C #B0303D #CF4E5B #DC7E88

Accessibility & contrast

On white

6.29

#B0303D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#B0303D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0303D

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0303D	#FFFFFF	#000000	##FFFFFF
##B0303D	1.00	6.29	3.34	6.29
#FFFFFF	6.29	1.00	21.00	1.00
#000000	3.34	21.00	1.00	21.00
##FFFFFF	6.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544F3D

Deuteranopia (green-blind)

#746A39

Tritanopia (blue-blind)

#C10136

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b0303d;
/* rgb */ color: rgb(176, 48, 61);
/* oklch */ color: oklch(50.9% 0.164 19.8);

Tailwind

colors: {
  custom: {
    50: '#cf7272',
    500: '#b0303d',
    950: '#000000',
  },
}

SCSS

$custom: #b0303d;
$custom-light: #cf7272;
$custom-dark: #000000;

JSON

{
  "hex": "#b0303d",
  "rgb": {
    "r": 176,
    "g": 48,
    "b": 61
  },
  "hsl": {
    "h": 353.906,
    "s": 57.143,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50908,
    "c": 0.16369,
    "h": 19.8
  },
  "luminance": 0.11681
}

Semantic roles & 50–950 ramp

primary

#B0303D

secondary

#77C5BD

accent

#E0D147

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150808

muted

#837B7B

Preview Lab

Preview with #B0303D

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

Preview Lab → · Contrast checker → · Palette generator →