#CB373D#CB373D

#CB373D is a mid, vivid red. Relative luminance 0.158; OKLCH L 56.3% C 0.184 H 23.4°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#CB373D
RGB	rgb(203, 55, 61)
HSL	hsl(358, 59%, 51%)
HSV	hsv(358, 73%, 80%)
CMYK	cmyk(0%, 72.9%, 70%, 20.4%)
CIE-LAB	lab(46.67, 57.90, 31.76)
CIE-LCH	lch(46.67, 66.04, 28.75°)
OKLab	oklab(56.27% 0.1693 0.0733)
OKLCH	oklch(56.27% 0.184 23.4)
XYZ	xyz(26.8401, 15.7699, 6.0446)
Luminance	0.1577 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB373D #37CBC5

analogous

#CB3787 #CB373D #CB7B37

triadic

#CB373D #3DCB37 #373DCB

tetradic

#CB373D #87CB37 #37CBC5 #7B37CB

square

#CB373D #87CB37 #37CBC5 #7B37CB

split-complementary

#CB373D #37CB7B #3787CB

monochromatic

#6C1C1F #9C292D #CB373D #D8686C #E4989B

Accessibility & contrast

On white

5.06

#CB373D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#CB373D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB373D

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB373D	#FFFFFF	#000000	##FFFFFF
##CB373D	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625A3C

Deuteranopia (green-blind)

#877A38

Tritanopia (blue-blind)

#DF003B

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #cb373d;
/* rgb */ color: rgb(203, 55, 61);
/* oklch */ color: oklch(56.3% 0.184 23.4);

Tailwind

colors: {
  custom: {
    50: '#e37972',
    500: '#cb373d',
    950: '#000000',
  },
}

SCSS

$custom: #cb373d;
$custom-light: #e37972;
$custom-dark: #000000;

JSON

{
  "hex": "#cb373d",
  "rgb": {
    "r": 203,
    "g": 55,
    "b": 61
  },
  "hsl": {
    "h": 357.568,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.56267,
    "c": 0.18449,
    "h": 23.4
  },
  "luminance": 0.15766
}

Semantic roles & 50–950 ramp

primary

#CB373D

secondary

#8ED0CD

accent

#E2DC46

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CB373D

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

Preview Lab → · Contrast checker → · Palette generator →