#CA3743#CA3743

#CA3743 is a mid, vivid red. Relative luminance 0.157; OKLCH L 56.2% C 0.183 H 21.1°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#CA3743
RGB	rgb(202, 55, 67)
HSL	hsl(355, 58%, 50%)
HSV	hsv(355, 73%, 79%)
CMYK	cmyk(0%, 72.8%, 66.8%, 20.8%)
CIE-LAB	lab(46.58, 57.90, 28.03)
CIE-LCH	lch(46.58, 64.33, 25.83°)
OKLab	oklab(56.19% 0.1707 0.0659)
OKLCH	oklch(56.19% 0.183 21.1)
XYZ	xyz(26.7393, 15.6982, 6.9312)
Luminance	0.1569 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3743 #37CABE

analogous

#CA378C #CA3743 #CA7437

triadic

#CA3743 #43CA37 #3743CA

tetradic

#CA3743 #8CCA37 #37CABE #7437CA

square

#CA3743 #8CCA37 #37CABE #7437CA

split-complementary

#CA3743 #37CA74 #378CCA

monochromatic

#6A1C23 #9B2932 #CA3743 #D76770 #E4989E

Accessibility & contrast

On white

5.07

#CA3743 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#CA3743 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3743

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3743	#FFFFFF	#000000	##FFFFFF
##CA3743	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)

#615A42

Deuteranopia (green-blind)

#867A3F

Tritanopia (blue-blind)

#DE003D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #ca3743;
/* rgb */ color: rgb(202, 55, 67);
/* oklch */ color: oklch(56.2% 0.183 21.1);

Tailwind

colors: {
  custom: {
    50: '#e27977',
    500: '#ca3743',
    950: '#000000',
  },
}

SCSS

$custom: #ca3743;
$custom-light: #e27977;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3743",
  "rgb": {
    "r": 202,
    "g": 55,
    "b": 67
  },
  "hsl": {
    "h": 355.102,
    "s": 58.103,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56191,
    "c": 0.18299,
    "h": 21.1
  },
  "luminance": 0.15694
}

Semantic roles & 50–950 ramp

primary

#CA3743

secondary

#8ECFCA

accent

#E1D546

background

#FFF7F7

surface

#FEEEED

border

#D6C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CA3743

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

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