#CB4B37#CB4B37

#CB4B37 is a mid, vivid red. Relative luminance 0.180; OKLCH L 58.4% C 0.167 H 31.4°. Best body text is #000000 at 4.60:1 contrast (WCAG AA passes).

Color values

HEX	#CB4B37
RGB	rgb(203, 75, 55)
HSL	hsl(8, 59%, 51%)
HSV	hsv(8, 73%, 80%)
CMYK	cmyk(0%, 63.1%, 72.9%, 20.4%)
CIE-LAB	lab(49.51, 49.69, 38.46)
CIE-LCH	lch(49.51, 62.84, 37.74°)
OKLab	oklab(58.37% 0.1423 0.0868)
OKLCH	oklch(58.37% 0.167 31.4)
XYZ	xyz(27.8372, 18.0084, 5.6238)
Luminance	0.1800 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4B37 #37B7CB

analogous

#CB376D #CB4B37 #CB9537

triadic

#CB4B37 #37CB4B #4B37CB

tetradic

#CB4B37 #6DCB37 #37B7CB #9537CB

square

#CB4B37 #6DCB37 #37B7CB #9537CB

split-complementary

#CB4B37 #37CB95 #376DCB

monochromatic

#6C271C #9C3829 #CB4B37 #D87768 #E4A298

Accessibility & contrast

On white

4.56

#CB4B37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.60

#CB4B37 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #CB4B37

4.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4B37	#FFFFFF	#000000	##000000
##CB4B37	1.00	4.56	4.60	4.60
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.60	21.00	1.00	1.00
##000000	4.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E6434

Deuteranopia (green-blind)

#8E8033

Tritanopia (blue-blind)

#DF2B47

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #cb4b37;
/* rgb */ color: rgb(203, 75, 55);
/* oklch */ color: oklch(58.4% 0.167 31.4);

Tailwind

colors: {
  custom: {
    50: '#e3836f',
    500: '#cb4b37',
    950: '#000000',
  },
}

SCSS

$custom: #cb4b37;
$custom-light: #e3836f;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4b37",
  "rgb": {
    "r": 203,
    "g": 75,
    "b": 55
  },
  "hsl": {
    "h": 8.108,
    "s": 58.73,
    "l": 50.588
  },
  "oklch": {
    "l": 0.58365,
    "c": 0.16663,
    "h": 31.4
  },
  "luminance": 0.18004
}

Semantic roles & 50–950 ramp

primary

#CB4B37

secondary

#8EC7D0

accent

#CDE246

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170B07

muted

#857C7A

Preview Lab

Preview with #CB4B37

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

Preview Lab → · Contrast checker → · Palette generator →