#CB3A39#CB3A39

#CB3A39 is a mid, vivid red. Relative luminance 0.160; OKLCH L 56.5% C 0.182 H 25.5°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#CB3A39
RGB	rgb(203, 58, 57)
HSL	hsl(0, 58%, 51%)
HSV	hsv(0, 72%, 80%)
CMYK	cmyk(0%, 71.4%, 71.9%, 20.4%)
CIE-LAB	lab(47.00, 56.64, 34.48)
CIE-LCH	lch(47.00, 66.31, 31.33°)
OKLab	oklab(56.5% 0.1645 0.0785)
OKLCH	oklch(56.5% 0.182 25.5)
XYZ	xyz(26.8832, 16.0221, 5.5471)
Luminance	0.1602 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CB3A39 #39CACB

analogous

#CB3981 #CB3A39 #CB8339

triadic

#CB3A39 #39CB3A #3A39CB

tetradic

#CB3A39 #81CB39 #39CACB #8339CB

square

#CB3A39 #81CB39 #39CACB #8339CB

split-complementary

#CB3A39 #39CB83 #3981CB

monochromatic

#6D1D1D #9D2A29 #CB3A39 #D86A69 #E49A9A

Accessibility & contrast

On white

5.00

#CB3A39 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#CB3A39 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CB3A39

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CB3A39	#FFFFFF	#000000	##FFFFFF
##CB3A39	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645B37

Deuteranopia (green-blind)

#887B34

Tritanopia (blue-blind)

#DF003C

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #cb3a39;
/* rgb */ color: rgb(203, 58, 57);
/* oklch */ color: oklch(56.5% 0.182 25.5);

Tailwind

colors: {
  custom: {
    50: '#e37a70',
    500: '#cb3a39',
    950: '#000000',
  },
}

SCSS

$custom: #cb3a39;
$custom-light: #e37a70;
$custom-dark: #000000;

JSON

{
  "hex": "#cb3a39",
  "rgb": {
    "r": 203,
    "g": 58,
    "b": 57
  },
  "hsl": {
    "h": 0.411,
    "s": 58.4,
    "l": 50.98
  },
  "oklch": {
    "l": 0.56497,
    "c": 0.18227,
    "h": 25.5
  },
  "luminance": 0.16018
}

Semantic roles & 50–950 ramp

primary

#CB3A39

secondary

#90D0D0

accent

#E1E246

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CB3A39

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

Preview Lab → · Contrast checker → · Palette generator →