#B03751#B03751

#B03751 is a mid, vivid red. Relative luminance 0.126; OKLCH L 52.1% C 0.157 H 11.8°. Best body text is #FFFFFF at 5.98:1 contrast (WCAG AA passes).

Color values

HEX	#B03751
RGB	rgb(176, 55, 81)
HSL	hsl(347, 52%, 45%)
HSV	hsv(347, 69%, 69%)
CMYK	cmyk(0%, 68.8%, 54%, 31%)
CIE-LAB	lab(42.09, 50.71, 12.67)
CIE-LCH	lch(42.09, 52.27, 14.03°)
OKLab	oklab(52.07% 0.1534 0.032)
OKLCH	oklch(52.07% 0.157 11.8)
XYZ	xyz(20.7577, 12.5593, 9.1141)
Luminance	0.1256 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03751 #37B096

analogous

#B0378E #B03751 #B05937

triadic

#B03751 #51B037 #3751B0

tetradic

#B03751 #8EB037 #37B096 #5937B0

square

#B03751 #8EB037 #37B096 #5937B0

split-complementary

#B03751 #37B059 #378EB0

monochromatic

#531A26 #81283C #B03751 #CB5972 #DA8899

Accessibility & contrast

On white

5.98

#B03751 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.51

#B03751 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03751

5.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03751	#FFFFFF	#000000	##FFFFFF
##B03751	1.00	5.98	3.51	5.98
#FFFFFF	5.98	1.00	21.00	1.00
#000000	3.51	21.00	1.00	21.00
##FFFFFF	5.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#545451

Deuteranopia (green-blind)

#746C4E

Tritanopia (blue-blind)

#C01F41

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #b03751;
/* rgb */ color: rgb(176, 55, 81);
/* oklch */ color: oklch(52.1% 0.157 11.8);

Tailwind

colors: {
  custom: {
    50: '#cd7681',
    500: '#b03751',
    950: '#000000',
  },
}

SCSS

$custom: #b03751;
$custom-light: #cd7681;
$custom-dark: #000000;

JSON

{
  "hex": "#b03751",
  "rgb": {
    "r": 176,
    "g": 55,
    "b": 81
  },
  "hsl": {
    "h": 347.107,
    "s": 52.381,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52068,
    "c": 0.15669,
    "h": 11.8
  },
  "luminance": 0.12557
}

Semantic roles & 50–950 ramp

primary

#B03751

secondary

#7FC4B5

accent

#DCBD4C

background

#FDF7F7

surface

#FAEDEE

border

#D3C8C9

text

#15090A

muted

#837B7C

Preview Lab

Preview with #B03751

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

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