#B03340#B03340

#B03340 is a mid, vivid red. Relative luminance 0.120; OKLCH L 51.3% C 0.161 H 19.2°. Best body text is #FFFFFF at 6.19:1 contrast (WCAG AA passes).

Color values

HEX	#B03340
RGB	rgb(176, 51, 64)
HSL	hsl(354, 55%, 45%)
HSV	hsv(354, 71%, 69%)
CMYK	cmyk(0%, 71%, 63.6%, 31%)
CIE-LAB	lab(41.17, 51.05, 22.02)
CIE-LCH	lch(41.17, 55.60, 23.33°)
OKLab	oklab(51.27% 0.1516 0.0529)
OKLCH	oklch(51.27% 0.161 19.2)
XYZ	xyz(20.0158, 11.9708, 6.1061)
Luminance	0.1197 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03340 #33B0A3

analogous

#B0337F #B03340 #B06533

triadic

#B03340 #40B033 #3340B0

tetradic

#B03340 #7FB033 #33B0A3 #6533B0

square

#B03340 #7FB033 #33B0A3 #6533B0

split-complementary

#B03340 #33B065 #337FB0

monochromatic

#51181D #81252F #B03340 #CD5360 #DB828C

Accessibility & contrast

On white

6.19

#B03340 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.39

#B03340 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03340

6.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03340	#FFFFFF	#000000	##FFFFFF
##B03340	1.00	6.19	3.39	6.19
#FFFFFF	6.19	1.00	21.00	1.00
#000000	3.39	21.00	1.00	21.00
##FFFFFF	6.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#555040

Deuteranopia (green-blind)

#756B3D

Tritanopia (blue-blind)

#C10E39

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #b03340;
/* rgb */ color: rgb(176, 51, 64);
/* oklch */ color: oklch(51.3% 0.161 19.2);

Tailwind

colors: {
  custom: {
    50: '#cf7374',
    500: '#b03340',
    950: '#000000',
  },
}

SCSS

$custom: #b03340;
$custom-light: #cf7374;
$custom-dark: #000000;

JSON

{
  "hex": "#b03340",
  "rgb": {
    "r": 176,
    "g": 51,
    "b": 64
  },
  "hsl": {
    "h": 353.76,
    "s": 55.066,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51268,
    "c": 0.16057,
    "h": 19.2
  },
  "luminance": 0.11968
}

Semantic roles & 50–950 ramp

primary

#B03340

secondary

#7BC4BD

accent

#DECF49

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B03340

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

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