#CA3F3F#CA3F3F

#CA3F3F is a mid, vivid red. Relative luminance 0.165; OKLCH L 56.9% C 0.176 H 24.7°. Best body text is #FFFFFF at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#CA3F3F
RGB	rgb(202, 63, 63)
HSL	hsl(0, 57%, 52%)
HSV	hsv(0, 69%, 79%)
CMYK	cmyk(0%, 68.8%, 68.8%, 20.8%)
CIE-LAB	lab(47.59, 54.73, 31.64)
CIE-LCH	lch(47.59, 63.22, 30.04°)
OKLab	oklab(56.93% 0.1598 0.0734)
OKLCH	oklch(56.93% 0.176 24.7)
XYZ	xyz(27.0347, 16.4744, 6.4580)
Luminance	0.1647 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3F3F #3FCACA

analogous

#CA3F85 #CA3F3F #CA853F

triadic

#CA3F3F #3FCA3F #3F3FCA

tetradic

#CA3F3F #85CA3F #3FCACA #853FCA

square

#CA3F3F #85CA3F #3FCACA #853FCA

split-complementary

#CA3F3F #3FCA85 #3F85CA

monochromatic

#701F1F #A02C2C #CA3F3F #D76F6F #E49F9F

Accessibility & contrast

On white

4.89

#CA3F3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#CA3F3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3F3F

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3F3F	#FFFFFF	#000000	##FFFFFF
##CA3F3F	1.00	4.89	4.29	4.89
#FFFFFF	4.89	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665E3E

Deuteranopia (green-blind)

#897C3B

Tritanopia (blue-blind)

#DE1541

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #ca3f3f;
/* rgb */ color: rgb(202, 63, 63);
/* oklch */ color: oklch(56.9% 0.176 24.7);

Tailwind

colors: {
  custom: {
    50: '#e27c74',
    500: '#ca3f3f',
    950: '#000000',
  },
}

SCSS

$custom: #ca3f3f;
$custom-light: #e27c74;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3f3f",
  "rgb": {
    "r": 202,
    "g": 63,
    "b": 63
  },
  "hsl": {
    "h": 0,
    "s": 56.735,
    "l": 51.961
  },
  "oklch": {
    "l": 0.56929,
    "c": 0.17585,
    "h": 24.7
  },
  "luminance": 0.1647
}

Semantic roles & 50–950 ramp

primary

#CA3F3F

secondary

#94D1D1

accent

#E0E048

background

#FFF7F7

surface

#FEEEED

border

#D6C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #CA3F3F

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

Preview Lab → · Contrast checker → · Palette generator →