#CB3B3C#CB3B3C

#CB3B3C is a mid, vivid red. Relative luminance 0.162; OKLCH L 56.6% C 0.181 H 24.7°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#CB3B3C
RGB	rgb(203, 59, 60)
HSL	hsl(360, 58%, 51%)
HSV	hsv(360, 71%, 80%)
CMYK	cmyk(0%, 70.9%, 70.4%, 20.4%)
CIE-LAB	lab(47.18, 56.42, 32.95)
CIE-LCH	lch(47.18, 65.33, 30.28°)
OKLab	oklab(56.64% 0.1644 0.0757)
OKLCH	oklch(56.64% 0.181 24.7)
XYZ	xyz(27.0112, 16.1547, 5.9700)
Luminance	0.1615 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3B3C #3BCBCA

analogous

#CB3B84 #CB3B3C #CB823B

triadic

#CB3B3C #3CCB3B #3B3CCB

tetradic

#CB3B3C #84CB3B #3BCBCA #823BCB

square

#CB3B3C #84CB3B #3BCBCA #823BCB

split-complementary

#CB3B3C #3BCB82 #3B84CB

monochromatic

#6E1D1E #9F2A2B #CB3B3C #D86B6C #E59C9C

Accessibility & contrast

On white

4.96

#CB3B3C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.23

#CB3B3C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3B3C

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3B3C	#FFFFFF	#000000	##FFFFFF
##CB3B3C	1.00	4.96	4.23	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.23	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645C3B

Deuteranopia (green-blind)

#887B37

Tritanopia (blue-blind)

#DF023D

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #cb3b3c;
/* rgb */ color: rgb(203, 59, 60);
/* oklch */ color: oklch(56.6% 0.181 24.7);

Tailwind

colors: {
  custom: {
    50: '#e37b72',
    500: '#cb3b3c',
    950: '#000000',
  },
}

SCSS

$custom: #cb3b3c;
$custom-light: #e37b72;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3b3c",
  "rgb": {
    "r": 203,
    "g": 59,
    "b": 60
  },
  "hsl": {
    "h": 359.583,
    "s": 58.065,
    "l": 51.373
  },
  "oklch": {
    "l": 0.56639,
    "c": 0.181,
    "h": 24.7
  },
  "luminance": 0.16151
}

Semantic roles & 50–950 ramp

primary

#CB3B3C

secondary

#91D1D0

accent

#E1E047

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CB3B3C

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

Preview Lab → · Contrast checker → · Palette generator →