#CB4B3F#CB4B3F

#CB4B3F is a mid, vivid red. Relative luminance 0.181; OKLCH L 58.5% C 0.165 H 28.5°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).

Color values

HEX	#CB4B3F
RGB	rgb(203, 75, 63)
HSL	hsl(5, 57%, 52%)
HSV	hsv(5, 69%, 80%)
CMYK	cmyk(0%, 63.1%, 69%, 20.4%)
CIE-LAB	lab(49.61, 50.08, 34.09)
CIE-LCH	lch(49.61, 60.58, 34.24°)
OKLab	oklab(58.47% 0.1451 0.0787)
OKLCH	oklch(58.47% 0.165 28.5)
XYZ	xyz(28.0448, 18.0914, 6.7169)
Luminance	0.1809 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4B3F #3FBFCB

analogous

#CB3F79 #CB4B3F #CB913F

triadic

#CB4B3F #3FCB4B #4B3FCB

tetradic

#CB4B3F #79CB3F #3FBFCB #913FCB

square

#CB4B3F #79CB3F #3FBFCB #913FCB

split-complementary

#CB4B3F #3FCB91 #3F79CB

monochromatic

#71261F #A1362C #CB4B3F #D8786F #E5A59F

Accessibility & contrast

On white

4.55

#CB4B3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.62

#CB4B3F on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #CB4B3F

4.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4B3F	#FFFFFF	#000000	##000000
##CB4B3F	1.00	4.55	4.62	4.62
#FFFFFF	4.55	1.00	21.00	21.00
#000000	4.62	21.00	1.00	1.00
##000000	4.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E643D

Deuteranopia (green-blind)

#8E803B

Tritanopia (blue-blind)

#DF2D49

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #cb4b3f;
/* rgb */ color: rgb(203, 75, 63);
/* oklch */ color: oklch(58.5% 0.165 28.5);

Tailwind

colors: {
  custom: {
    50: '#e28374',
    500: '#cb4b3f',
    950: '#000000',
  },
}

SCSS

$custom: #cb4b3f;
$custom-light: #e28374;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4b3f",
  "rgb": {
    "r": 203,
    "g": 75,
    "b": 63
  },
  "hsl": {
    "h": 5.143,
    "s": 57.377,
    "l": 52.157
  },
  "oklch": {
    "l": 0.58473,
    "c": 0.16505,
    "h": 28.5
  },
  "luminance": 0.18088
}

Semantic roles & 50–950 ramp

primary

#CB4B3F

secondary

#94CCD1

accent

#D3E147

background

#FEF8F7

surface

#FDEFED

border

#D5CAC8

text

#170B08

muted

#857C7B

Preview Lab

Preview with #CB4B3F

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

Preview Lab → · Contrast checker → · Palette generator →