#CB4737#CB4737

#CB4737 is a mid, vivid red. Relative luminance 0.175; OKLCH L 57.9% C 0.170 H 30.0°. Best body text is #FFFFFF at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#CB4737
RGB	rgb(203, 71, 55)
HSL	hsl(6, 59%, 51%)
HSV	hsv(6, 73%, 80%)
CMYK	cmyk(0%, 65%, 72.9%, 20.4%)
CIE-LAB	lab(48.86, 51.42, 37.74)
CIE-LCH	lch(48.86, 63.78, 36.28°)
OKLab	oklab(57.88% 0.1477 0.0852)
OKLCH	oklch(57.88% 0.17 30)
XYZ	xyz(27.5744, 17.4828, 5.5362)
Luminance	0.1748 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4737 #37BBCB

analogous

#CB3771 #CB4737 #CB9137

triadic

#CB4737 #37CB47 #4737CB

tetradic

#CB4737 #71CB37 #37BBCB #9137CB

square

#CB4737 #71CB37 #37BBCB #9137CB

split-complementary

#CB4737 #37CB91 #3771CB

monochromatic

#6C251C #9C3529 #CB4737 #D87468 #E4A098

Accessibility & contrast

On white

4.67

#CB4737 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.50

#CB4737 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #CB4737

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4737	#FFFFFF	#000000	##FFFFFF
##CB4737	1.00	4.67	4.50	4.67
#FFFFFF	4.67	1.00	21.00	1.00
#000000	4.50	21.00	1.00	21.00
##FFFFFF	4.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C6234

Deuteranopia (green-blind)

#8D7F33

Tritanopia (blue-blind)

#DF2444

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #cb4737;
/* rgb */ color: rgb(203, 71, 55);
/* oklch */ color: oklch(57.9% 0.170 30.0);

Tailwind

colors: {
  custom: {
    50: '#e3816f',
    500: '#cb4737',
    950: '#000000',
  },
}

SCSS

$custom: #cb4737;
$custom-light: #e3816f;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4737",
  "rgb": {
    "r": 203,
    "g": 71,
    "b": 55
  },
  "hsl": {
    "h": 6.486,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.57881,
    "c": 0.17046,
    "h": 30
  },
  "luminance": 0.17479
}

Semantic roles & 50–950 ramp

primary

#CB4737

secondary

#8EC9D0

accent

#D1E246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170B07

muted

#857C7A

Preview Lab

Preview with #CB4737

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

Preview Lab → · Contrast checker → · Palette generator →