#B03640#B03640

#B03640 is a mid, vivid red. Relative luminance 0.122; OKLCH L 51.6% C 0.157 H 20.1°. Best body text is #FFFFFF at 6.09:1 contrast (WCAG AA passes).

Color values

HEX	#B03640
RGB	rgb(176, 54, 64)
HSL	hsl(355, 53%, 45%)
HSV	hsv(355, 69%, 69%)
CMYK	cmyk(0%, 69.3%, 63.6%, 31%)
CIE-LAB	lab(41.60, 49.88, 22.56)
CIE-LCH	lch(41.60, 54.74, 24.34°)
OKLab	oklab(51.59% 0.1479 0.0541)
OKLCH	oklch(51.59% 0.157 20.1)
XYZ	xyz(20.1511, 12.2415, 6.1512)
Luminance	0.1224 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B03640 #36B0A6

analogous

#B0367D #B03640 #B06936

triadic

#B03640 #40B036 #3640B0

tetradic

#B03640 #7DB036 #36B0A6 #6936B0

square

#B03640 #7DB036 #36B0A6 #6936B0

split-complementary

#B03640 #36B069 #367DB0

monochromatic

#52191E #81282F #B03640 #CC5861 #DA868D

Accessibility & contrast

On white

6.09

#B03640 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#B03640 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B03640

6.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B03640	#FFFFFF	#000000	##FFFFFF
##B03640	1.00	6.09	3.45	6.09
#FFFFFF	6.09	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#57523F

Deuteranopia (green-blind)

#766C3D

Tritanopia (blue-blind)

#C1163B

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #b03640;
/* rgb */ color: rgb(176, 54, 64);
/* oklch */ color: oklch(51.6% 0.157 20.1);

Tailwind

colors: {
  custom: {
    50: '#ce7574',
    500: '#b03640',
    950: '#000000',
  },
}

SCSS

$custom: #b03640;
$custom-light: #ce7574;
$custom-dark: #000000;

JSON

{
  "hex": "#b03640",
  "rgb": {
    "r": 176,
    "g": 54,
    "b": 64
  },
  "hsl": {
    "h": 355.082,
    "s": 53.043,
    "l": 45.098
  },
  "oklch": {
    "l": 0.51587,
    "c": 0.15747,
    "h": 20.1
  },
  "luminance": 0.12239
}

Semantic roles & 50–950 ramp

primary

#B03640

secondary

#7EC4BE

accent

#DCD14B

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B03640

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

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