#CB3933#CB3933

#CB3933 is a mid, vivid red. Relative luminance 0.159; OKLCH L 56.3% C 0.184 H 27.2°. Best body text is #FFFFFF at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#CB3933
RGB	rgb(203, 57, 51)
HSL	hsl(2, 60%, 50%)
HSV	hsv(2, 75%, 80%)
CMYK	cmyk(0%, 71.9%, 74.9%, 20.4%)
CIE-LAB	lab(46.80, 56.75, 37.68)
CIE-LCH	lch(46.80, 68.12, 33.58°)
OKLab	oklab(56.32% 0.1636 0.0842)
OKLCH	oklch(56.32% 0.184 27.2)
XYZ	xyz(26.6923, 15.8659, 4.7883)
Luminance	0.1586 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3933 #33C5CB

analogous

#CB3379 #CB3933 #CB8533

triadic

#CB3933 #33CB39 #3933CB

tetradic

#CB3933 #79CB33 #33C5CB #8533CB

square

#CB3933 #79CB33 #33C5CB #8533CB

split-complementary

#CB3933 #33CB85 #3379CB

monochromatic

#691E1A #9A2B27 #CB3933 #D86863 #E49794

Accessibility & contrast

On white

5.03

#CB3933 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.17

#CB3933 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3933

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3933	#FFFFFF	#000000	##FFFFFF
##CB3933	1.00	5.03	4.17	5.03
#FFFFFF	5.03	1.00	21.00	1.00
#000000	4.17	21.00	1.00	21.00
##FFFFFF	5.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645B31

Deuteranopia (green-blind)

#887B2D

Tritanopia (blue-blind)

#DF0039

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #cb3933;
/* rgb */ color: rgb(203, 57, 51);
/* oklch */ color: oklch(56.3% 0.184 27.2);

Tailwind

colors: {
  custom: {
    50: '#e4796b',
    500: '#cb3933',
    950: '#000000',
  },
}

SCSS

$custom: #cb3933;
$custom-light: #e4796b;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3933",
  "rgb": {
    "r": 203,
    "g": 57,
    "b": 51
  },
  "hsl": {
    "h": 2.368,
    "s": 59.843,
    "l": 49.804
  },
  "oklch": {
    "l": 0.5632,
    "c": 0.18395,
    "h": 27.2
  },
  "luminance": 0.15862
}

Semantic roles & 50–950 ramp

primary

#CB3933

secondary

#8BCDCF

accent

#DDE345

background

#FFF7F6

surface

#FFEEEB

border

#D7C9C6

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB3933

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

Preview Lab → · Contrast checker → · Palette generator →