#CB4537#CB4537

#CB4537 is a mid, vivid red. Relative luminance 0.172; OKLCH L 57.6% C 0.172 H 29.3°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#CB4537
RGB	rgb(203, 69, 55)
HSL	hsl(6, 59%, 51%)
HSV	hsv(6, 73%, 80%)
CMYK	cmyk(0%, 66%, 72.9%, 20.4%)
CIE-LAB	lab(48.55, 52.26, 37.39)
CIE-LCH	lch(48.55, 64.25, 35.58°)
OKLab	oklab(57.65% 0.1503 0.0844)
OKLCH	oklch(57.65% 0.172 29.3)
XYZ	xyz(27.4493, 17.2326, 5.4945)
Luminance	0.1723 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4537 #37BDCB

analogous

#CB3773 #CB4537 #CB8F37

triadic

#CB4537 #37CB45 #4537CB

tetradic

#CB4537 #73CB37 #37BDCB #8F37CB

square

#CB4537 #73CB37 #37BDCB #8F37CB

split-complementary

#CB4537 #37CB8F #3773CB

monochromatic

#6C241C #9C3429 #CB4537 #D87268 #E49F98

Accessibility & contrast

On white

4.72

#CB4537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#CB4537 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4537

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4537	#FFFFFF	#000000	##FFFFFF
##CB4537	1.00	4.72	4.45	4.72
#FFFFFF	4.72	1.00	21.00	1.00
#000000	4.45	21.00	1.00	21.00
##FFFFFF	4.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B6135

Deuteranopia (green-blind)

#8C7E33

Tritanopia (blue-blind)

#DF2043

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #cb4537;
/* rgb */ color: rgb(203, 69, 55);
/* oklch */ color: oklch(57.6% 0.172 29.3);

Tailwind

colors: {
  custom: {
    50: '#e3806e',
    500: '#cb4537',
    950: '#000000',
  },
}

SCSS

$custom: #cb4537;
$custom-light: #e3806e;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4537",
  "rgb": {
    "r": 203,
    "g": 69,
    "b": 55
  },
  "hsl": {
    "h": 5.676,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.57648,
    "c": 0.17237,
    "h": 29.3
  },
  "luminance": 0.17229
}

Semantic roles & 50–950 ramp

primary

#CB4537

secondary

#8ECAD0

accent

#D3E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170B07

muted

#857C7A

Preview Lab

Preview with #CB4537

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

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