#CA3733#CA3733

#CA3733 is a mid, vivid red. Relative luminance 0.155; OKLCH L 56.0% C 0.185 H 26.7°. Best body text is #FFFFFF at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#CA3733
RGB	rgb(202, 55, 51)
HSL	hsl(2, 60%, 50%)
HSV	hsv(2, 75%, 79%)
CMYK	cmyk(0%, 72.8%, 74.8%, 20.8%)
CIE-LAB	lab(46.35, 57.15, 37.14)
CIE-LCH	lch(46.35, 68.15, 33.02°)
OKLab	oklab(55.96% 0.165 0.083)
OKLCH	oklch(55.96% 0.185 26.7)
XYZ	xyz(26.3239, 15.5320, 4.7432)
Luminance	0.1553 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3733 #33C6CA

analogous

#CA337B #CA3733 #CA8233

triadic

#CA3733 #33CA37 #3733CA

tetradic

#CA3733 #7BCA33 #33C6CA #8233CA

square

#CA3733 #7BCA33 #33C6CA #8233CA

split-complementary

#CA3733 #33CA82 #337BCA

monochromatic

#681C1A #992A27 #CA3733 #D86663 #E49694

Accessibility & contrast

On white

5.11

#CA3733 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.11

#CA3733 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3733

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3733	#FFFFFF	#000000	##FFFFFF
##CA3733	1.00	5.11	4.11	5.11
#FFFFFF	5.11	1.00	21.00	1.00
#000000	4.11	21.00	1.00	21.00
##FFFFFF	5.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625931

Deuteranopia (green-blind)

#87792D

Tritanopia (blue-blind)

#DE0038

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #ca3733;
/* rgb */ color: rgb(202, 55, 51);
/* oklch */ color: oklch(56.0% 0.185 26.7);

Tailwind

colors: {
  custom: {
    50: '#e3786b',
    500: '#ca3733',
    950: '#000000',
  },
}

SCSS

$custom: #ca3733;
$custom-light: #e3786b;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3733",
  "rgb": {
    "r": 202,
    "g": 55,
    "b": 51
  },
  "hsl": {
    "h": 1.589,
    "s": 59.684,
    "l": 49.608
  },
  "oklch": {
    "l": 0.55955,
    "c": 0.18467,
    "h": 26.7
  },
  "luminance": 0.15528
}

Semantic roles & 50–950 ramp

primary

#CA3733

secondary

#8ACDCF

accent

#DFE345

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #CA3733

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

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