#CB4539#CB4539

#CB4539 is a mid, vivid red. Relative luminance 0.172; OKLCH L 57.7% C 0.172 H 28.6°. Best body text is #FFFFFF at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#CB4539
RGB	rgb(203, 69, 57)
HSL	hsl(5, 58%, 51%)
HSV	hsv(5, 72%, 80%)
CMYK	cmyk(0%, 66%, 71.9%, 20.4%)
CIE-LAB	lab(48.58, 52.35, 36.29)
CIE-LCH	lch(48.58, 63.70, 34.73°)
OKLab	oklab(57.67% 0.151 0.0825)
OKLCH	oklch(57.67% 0.172 28.6)
XYZ	xyz(27.4982, 17.2521, 5.7521)
Luminance	0.1725 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4539 #39BFCB

analogous

#CB3976 #CB4539 #CB8E39

triadic

#CB4539 #39CB45 #4539CB

tetradic

#CB4539 #76CB39 #39BFCB #8E39CB

square

#CB4539 #76CB39 #39BFCB #8E39CB

split-complementary

#CB4539 #39CB8E #3976CB

monochromatic

#6D231D #9D3329 #CB4539 #D87369 #E4A09A

Accessibility & contrast

On white

4.72

#CB4539 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.45

#CB4539 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4539

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4539	#FFFFFF	#000000	##FFFFFF
##CB4539	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)

#6A6137

Deuteranopia (green-blind)

#8C7E35

Tritanopia (blue-blind)

#DF2043

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #cb4539;
/* rgb */ color: rgb(203, 69, 57);
/* oklch */ color: oklch(57.7% 0.172 28.6);

Tailwind

colors: {
  custom: {
    50: '#e38070',
    500: '#cb4539',
    950: '#000000',
  },
}

SCSS

$custom: #cb4539;
$custom-light: #e38070;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4539",
  "rgb": {
    "r": 203,
    "g": 69,
    "b": 57
  },
  "hsl": {
    "h": 4.932,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.57674,
    "c": 0.17202,
    "h": 28.6
  },
  "luminance": 0.17248
}

Semantic roles & 50–950 ramp

primary

#CB4539

secondary

#90CBD0

accent

#D5E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170B07

muted

#857C7A

Preview Lab

Preview with #CB4539

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

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