#B0303E#B0303E

#B0303E is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.9% C 0.164 H 19.3°. Best body text is #FFFFFF at 6.29:1 contrast (WCAG AA passes).

Color values

HEX	#B0303E
RGB	rgb(176, 48, 62)
HSL	hsl(353, 57%, 44%)
HSV	hsv(353, 73%, 69%)
CMYK	cmyk(0%, 72.7%, 64.8%, 31%)
CIE-LAB	lab(40.73, 52.05, 22.68)
CIE-LCH	lch(40.73, 56.78, 23.55°)
OKLab	oklab(50.93% 0.1544 0.0542)
OKLCH	oklch(50.93% 0.164 19.3)
XYZ	xyz(19.8330, 11.6947, 5.7695)
Luminance	0.1169 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0303E #30B0A2

analogous

#B0307E #B0303E #B06230

triadic

#B0303E #3EB030 #303EB0

tetradic

#B0303E #7EB030 #30B0A2 #6230B0

square

#B0303E #7EB030 #30B0A2 #6230B0

split-complementary

#B0303E #30B062 #307EB0

monochromatic

#50161C #80232D #B0303E #CF4E5C #DC7E89

Accessibility & contrast

On white

6.29

#B0303E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.34

#B0303E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0303E

6.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0303E	#FFFFFF	#000000	##FFFFFF
##B0303E	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)

#534F3E

Deuteranopia (green-blind)

#746A3A

Tritanopia (blue-blind)

#C10236

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #b0303e;
/* rgb */ color: rgb(176, 48, 62);
/* oklch */ color: oklch(50.9% 0.164 19.3);

Tailwind

colors: {
  custom: {
    50: '#cf7273',
    500: '#b0303e',
    950: '#000000',
  },
}

SCSS

$custom: #b0303e;
$custom-light: #cf7273;
$custom-dark: #000000;

JSON

{
  "hex": "#b0303e",
  "rgb": {
    "r": 176,
    "g": 48,
    "b": 62
  },
  "hsl": {
    "h": 353.438,
    "s": 57.143,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50926,
    "c": 0.16365,
    "h": 19.3
  },
  "luminance": 0.11692
}

Semantic roles & 50–950 ramp

primary

#B0303E

secondary

#77C5BC

accent

#E0D047

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150808

muted

#837B7B

Preview Lab

Preview with #B0303E

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

Preview Lab → · Contrast checker → · Palette generator →