#CB3C3B#CB3C3B

#CB3C3B is a mid, vivid red. Relative luminance 0.162; OKLCH L 56.7% C 0.180 H 25.3°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#CB3C3B
RGB	rgb(203, 60, 59)
HSL	hsl(0, 58%, 51%)
HSV	hsv(0, 71%, 80%)
CMYK	cmyk(0%, 70.4%, 70.9%, 20.4%)
CIE-LAB	lab(47.30, 56.00, 33.67)
CIE-LCH	lch(47.30, 65.34, 31.02°)
OKLab	oklab(56.73% 0.1629 0.0771)
OKLCH	oklch(56.73% 0.18 25.3)
XYZ	xyz(27.0369, 16.2480, 5.8494)
Luminance	0.1624 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3C3B #3BCACB

analogous

#CB3B82 #CB3C3B #CB843B

triadic

#CB3C3B #3BCB3C #3C3BCB

tetradic

#CB3C3B #82CB3B #3BCACB #843BCB

square

#CB3C3B #82CB3B #3BCACB #843BCB

split-complementary

#CB3C3B #3BCB84 #3B82CB

monochromatic

#6E1E1D #9F2B2A #CB3C3B #D86C6B #E59C9C

Accessibility & contrast

On white

4.94

#CB3C3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#CB3C3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3C3B

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3C3B	#FFFFFF	#000000	##FFFFFF
##CB3C3B	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655D39

Deuteranopia (green-blind)

#897B36

Tritanopia (blue-blind)

#DF063D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #cb3c3b;
/* rgb */ color: rgb(203, 60, 59);
/* oklch */ color: oklch(56.7% 0.180 25.3);

Tailwind

colors: {
  custom: {
    50: '#e37b71',
    500: '#cb3c3b',
    950: '#000000',
  },
}

SCSS

$custom: #cb3c3b;
$custom-light: #e37b71;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3c3b",
  "rgb": {
    "r": 203,
    "g": 60,
    "b": 59
  },
  "hsl": {
    "h": 0.417,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.56726,
    "c": 0.1802,
    "h": 25.3
  },
  "luminance": 0.16244
}

Semantic roles & 50–950 ramp

primary

#CB3C3B

secondary

#91D0D1

accent

#E0E147

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB3C3B

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

Preview Lab → · Contrast checker → · Palette generator →