#CB4B3B#CB4B3B

#CB4B3B is a mid, vivid red. Relative luminance 0.180; OKLCH L 58.4% C 0.166 H 30.0°. Best body text is #000000 at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#CB4B3B
RGB	rgb(203, 75, 59)
HSL	hsl(7, 58%, 51%)
HSV	hsv(7, 71%, 80%)
CMYK	cmyk(0%, 63.1%, 70.9%, 20.4%)
CIE-LAB	lab(49.55, 49.88, 36.29)
CIE-LCH	lch(49.55, 61.69, 36.04°)
OKLab	oklab(58.42% 0.1436 0.0828)
OKLCH	oklch(58.42% 0.166 30)
XYZ	xyz(27.9370, 18.0483, 6.1494)
Luminance	0.1804 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB4B3B #3BBBCB

analogous

#CB3B73 #CB4B3B #CB933B

triadic

#CB4B3B #3BCB4B #4B3BCB

tetradic

#CB4B3B #73CB3B #3BBBCB #933BCB

square

#CB4B3B #73CB3B #3BBBCB #933BCB

split-complementary

#CB4B3B #3BCB93 #3B73CB

monochromatic

#6E261D #9F372A #CB4B3B #D8776B #E5A49C

Accessibility & contrast

On white

4.56

#CB4B3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.61

#CB4B3B on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #CB4B3B

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB4B3B	#FFFFFF	#000000	##000000
##CB4B3B	1.00	4.56	4.61	4.61
#FFFFFF	4.56	1.00	21.00	21.00
#000000	4.61	21.00	1.00	1.00
##000000	4.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E6439

Deuteranopia (green-blind)

#8E8037

Tritanopia (blue-blind)

#DF2C48

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #cb4b3b;
/* rgb */ color: rgb(203, 75, 59);
/* oklch */ color: oklch(58.4% 0.166 30.0);

Tailwind

colors: {
  custom: {
    50: '#e28371',
    500: '#cb4b3b',
    950: '#000000',
  },
}

SCSS

$custom: #cb4b3b;
$custom-light: #e28371;
$custom-dark: #000000;

JSON

{
  "hex": "#cb4b3b",
  "rgb": {
    "r": 203,
    "g": 75,
    "b": 59
  },
  "hsl": {
    "h": 6.667,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.58417,
    "c": 0.16582,
    "h": 30
  },
  "luminance": 0.18044
}

Semantic roles & 50–950 ramp

primary

#CB4B3B

secondary

#91CAD1

accent

#D0E147

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170B08

muted

#857C7B

Preview Lab

Preview with #CB4B3B

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

Preview Lab → · Contrast checker → · Palette generator →