#CA3937#CA3937

#CA3937 is a mid, vivid red. Relative luminance 0.158; OKLCH L 56.2% C 0.182 H 25.9°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#CA3937
RGB	rgb(202, 57, 55)
HSL	hsl(1, 58%, 50%)
HSV	hsv(1, 73%, 79%)
CMYK	cmyk(0%, 71.8%, 72.8%, 20.8%)
CIE-LAB	lab(46.66, 56.60, 35.20)
CIE-LCH	lch(46.66, 66.65, 31.87°)
OKLab	oklab(56.2% 0.1641 0.0797)
OKLCH	oklch(56.2% 0.182 25.9)
XYZ	xyz(26.5128, 15.7627, 5.2602)
Luminance	0.1576 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3937 #37C8CA

analogous

#CA377F #CA3937 #CA8237

triadic

#CA3937 #37CA39 #3937CA

tetradic

#CA3937 #7FCA37 #37C8CA #8237CA

square

#CA3937 #7FCA37 #37C8CA #8237CA

split-complementary

#CA3937 #37CA82 #377FCA

monochromatic

#6A1D1C #9B2B29 #CA3937 #D76967 #E49998

Accessibility & contrast

On white

5.06

#CA3937 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#CA3937 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3937

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3937	#FFFFFF	#000000	##FFFFFF
##CA3937	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635B35

Deuteranopia (green-blind)

#877A32

Tritanopia (blue-blind)

#DE003A

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #ca3937;
/* rgb */ color: rgb(202, 57, 55);
/* oklch */ color: oklch(56.2% 0.182 25.9);

Tailwind

colors: {
  custom: {
    50: '#e3796e',
    500: '#ca3937',
    950: '#000000',
  },
}

SCSS

$custom: #ca3937;
$custom-light: #e3796e;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3937",
  "rgb": {
    "r": 202,
    "g": 57,
    "b": 55
  },
  "hsl": {
    "h": 0.816,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.562,
    "c": 0.1824,
    "h": 25.9
  },
  "luminance": 0.15759
}

Semantic roles & 50–950 ramp

primary

#CA3937

secondary

#8ECECF

accent

#DFE146

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CA3937

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

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