#CB4337#CB4337

#CB4337 is a mid, vivid red. Relative luminance 0.170; OKLCH L 57.4% C 0.174 H 28.7°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#CB4337
RGB	rgb(203, 67, 55)
HSL	hsl(5, 59%, 51%)
HSV	hsv(5, 73%, 80%)
CMYK	cmyk(0%, 67%, 72.9%, 20.4%)
CIE-LAB	lab(48.25, 53.08, 37.05)
CIE-LCH	lch(48.25, 64.73, 34.91°)
OKLab	oklab(57.42% 0.1529 0.0837)
OKLCH	oklch(57.42% 0.174 28.7)
XYZ	xyz(27.3283, 16.9906, 5.4542)
Luminance	0.1699 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4337 #37BFCB

analogous

#CB3775 #CB4337 #CB8D37

triadic

#CB4337 #37CB43 #4337CB

tetradic

#CB4337 #75CB37 #37BFCB #8D37CB

square

#CB4337 #75CB37 #37BFCB #8D37CB

split-complementary

#CB4337 #37CB8D #3775CB

monochromatic

#6C221C #9C3229 #CB4337 #D87168 #E49E98

Accessibility & contrast

On white

4.78

#CB4337 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#CB4337 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4337

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4337	#FFFFFF	#000000	##FFFFFF
##CB4337	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#696035

Deuteranopia (green-blind)

#8B7D32

Tritanopia (blue-blind)

#DF1B41

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #cb4337;
/* rgb */ color: rgb(203, 67, 55);
/* oklch */ color: oklch(57.4% 0.174 28.7);

Tailwind

colors: {
  custom: {
    50: '#e37e6e',
    500: '#cb4337',
    950: '#000000',
  },
}

SCSS

$custom: #cb4337;
$custom-light: #e37e6e;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4337",
  "rgb": {
    "r": 203,
    "g": 67,
    "b": 55
  },
  "hsl": {
    "h": 4.865,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.5742,
    "c": 0.17427,
    "h": 28.7
  },
  "luminance": 0.16987
}

Semantic roles & 50–950 ramp

primary

#CB4337

secondary

#8ECAD0

accent

#D5E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB4337

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

Preview Lab → · Contrast checker → · Palette generator →