#CA3633#CA3633

#CA3633 is a mid, vivid red. Relative luminance 0.154; OKLCH L 55.9% C 0.186 H 26.5°. Best body text is #FFFFFF at 5.14:1 contrast (WCAG AA passes).

Color values

HEX	#CA3633
RGB	rgb(202, 54, 51)
HSL	hsl(1, 60%, 50%)
HSV	hsv(1, 75%, 79%)
CMYK	cmyk(0%, 73.3%, 74.8%, 20.8%)
CIE-LAB	lab(46.23, 57.50, 37.00)
CIE-LCH	lch(46.23, 68.37, 32.76°)
OKLab	oklab(55.86% 0.1661 0.0827)
OKLCH	oklch(55.86% 0.186 26.5)
XYZ	xyz(26.2769, 15.4380, 4.7275)
Luminance	0.1543 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3633 #33C7CA

analogous

#CA337C #CA3633 #CA8233

triadic

#CA3633 #33CA36 #3633CA

tetradic

#CA3633 #7CCA33 #33C7CA #8233CA

square

#CA3633 #7CCA33 #33C7CA #8233CA

split-complementary

#CA3633 #33CA82 #337CCA

monochromatic

#681C1A #992927 #CA3633 #D86563 #E49594

Accessibility & contrast

On white

5.14

#CA3633 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.09

#CA3633 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3633

5.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3633	#FFFFFF	#000000	##FFFFFF
##CA3633	1.00	5.14	4.09	5.14
#FFFFFF	5.14	1.00	21.00	1.00
#000000	4.09	21.00	1.00	21.00
##FFFFFF	5.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625931

Deuteranopia (green-blind)

#87792D

Tritanopia (blue-blind)

#DE0037

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #ca3633;
/* rgb */ color: rgb(202, 54, 51);
/* oklch */ color: oklch(55.9% 0.186 26.5);

Tailwind

colors: {
  custom: {
    50: '#e3786b',
    500: '#ca3633',
    950: '#000000',
  },
}

SCSS

$custom: #ca3633;
$custom-light: #e3786b;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3633",
  "rgb": {
    "r": 202,
    "g": 54,
    "b": 51
  },
  "hsl": {
    "h": 1.192,
    "s": 59.684,
    "l": 49.608
  },
  "oklch": {
    "l": 0.55861,
    "c": 0.18552,
    "h": 26.5
  },
  "luminance": 0.15434
}

Semantic roles & 50–950 ramp

primary

#CA3633

secondary

#8ACECF

accent

#E0E345

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170A06

muted

#857C7A

Preview Lab

Preview with #CA3633

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

Preview Lab → · Contrast checker → · Palette generator →