#CB3736#CB3736

#CB3736 is a mid, vivid red. Relative luminance 0.157; OKLCH L 56.2% C 0.185 H 25.8°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#CB3736
RGB	rgb(203, 55, 54)
HSL	hsl(0, 59%, 50%)
HSV	hsv(0, 73%, 80%)
CMYK	cmyk(0%, 72.9%, 73.4%, 20.4%)
CIE-LAB	lab(46.58, 57.58, 35.72)
CIE-LCH	lch(46.58, 67.76, 31.82°)
OKLab	oklab(56.17% 0.1668 0.0806)
OKLCH	oklch(56.17% 0.185 25.8)
XYZ	xyz(26.6637, 15.6993, 5.1156)
Luminance	0.1570 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3736 #36CACB

analogous

#CB367F #CB3736 #CB8236

triadic

#CB3736 #36CB37 #3736CB

tetradic

#CB3736 #7FCB36 #36CACB #8236CB

square

#CB3736 #7FCB36 #36CACB #8236CB

split-complementary

#CB3736 #36CB82 #367FCB

monochromatic

#6B1C1C #9C2928 #CB3736 #D86767 #E49897

Accessibility & contrast

On white

5.07

#CB3736 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#CB3736 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3736

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3736	#FFFFFF	#000000	##FFFFFF
##CB3736	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635A34

Deuteranopia (green-blind)

#877A31

Tritanopia (blue-blind)

#DF0039

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #cb3736;
/* rgb */ color: rgb(203, 55, 54);
/* oklch */ color: oklch(56.2% 0.185 25.8);

Tailwind

colors: {
  custom: {
    50: '#e4796d',
    500: '#cb3736',
    950: '#000000',
  },
}

SCSS

$custom: #cb3736;
$custom-light: #e4796d;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3736",
  "rgb": {
    "r": 203,
    "g": 55,
    "b": 54
  },
  "hsl": {
    "h": 0.403,
    "s": 58.893,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56167,
    "c": 0.18528,
    "h": 25.8
  },
  "luminance": 0.15695
}

Semantic roles & 50–950 ramp

primary

#CB3736

secondary

#8DCFD0

accent

#E1E246

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB3736

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

Preview Lab → · Contrast checker → · Palette generator →