#CA3333#CA3333

#CA3333 is a mid, vivid red. Relative luminance 0.152; OKLCH L 55.6% C 0.188 H 25.8°. Best body text is #FFFFFF at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#CA3333
RGB	rgb(202, 51, 51)
HSL	hsl(0, 60%, 50%)
HSV	hsv(0, 75%, 79%)
CMYK	cmyk(0%, 74.8%, 74.8%, 20.8%)
CIE-LAB	lab(45.86, 58.51, 36.59)
CIE-LCH	lch(45.86, 69.01, 32.02°)
OKLab	oklab(55.59% 0.1693 0.0819)
OKLCH	oklch(55.59% 0.188 25.8)
XYZ	xyz(26.1415, 15.1673, 4.6824)
Luminance	0.1516 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3333 #33CACA

analogous

#CA337F #CA3333 #CA7F33

triadic

#CA3333 #33CA33 #3333CA

tetradic

#CA3333 #7FCA33 #33CACA #7F33CA

square

#CA3333 #7FCA33 #33CACA #7F33CA

split-complementary

#CA3333 #33CA7F #337FCA

monochromatic

#681A1A #992727 #CA3333 #D86363 #E49494

Accessibility & contrast

On white

5.21

#CA3333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.03

#CA3333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3333

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3333	#FFFFFF	#000000	##FFFFFF
##CA3333	1.00	5.21	4.03	5.21
#FFFFFF	5.21	1.00	21.00	1.00
#000000	4.03	21.00	1.00	21.00
##FFFFFF	5.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605831

Deuteranopia (green-blind)

#86782D

Tritanopia (blue-blind)

#DE0035

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #ca3333;
/* rgb */ color: rgb(202, 51, 51);
/* oklch */ color: oklch(55.6% 0.188 25.8);

Tailwind

colors: {
  custom: {
    50: '#e3776b',
    500: '#ca3333',
    950: '#000000',
  },
}

SCSS

$custom: #ca3333;
$custom-light: #e3776b;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3333",
  "rgb": {
    "r": 202,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 59.684,
    "l": 49.608
  },
  "oklch": {
    "l": 0.55589,
    "c": 0.18801,
    "h": 25.8
  },
  "luminance": 0.15163
}

Semantic roles & 50–950 ramp

primary

#CA3333

secondary

#8ACFCF

accent

#E3E345

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #CA3333

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

Preview Lab → · Contrast checker → · Palette generator →