#CA3F3B#CA3F3B

#CA3F3B is a mid, vivid red. Relative luminance 0.164; OKLCH L 56.9% C 0.176 H 26.1°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#CA3F3B
RGB	rgb(202, 63, 59)
HSL	hsl(2, 57%, 51%)
HSV	hsv(2, 71%, 79%)
CMYK	cmyk(0%, 68.8%, 70.8%, 20.8%)
CIE-LAB	lab(47.54, 54.53, 33.90)
CIE-LCH	lch(47.54, 64.21, 31.87°)
OKLab	oklab(56.87% 0.1584 0.0777)
OKLCH	oklch(56.87% 0.176 26.1)
XYZ	xyz(26.9270, 16.4313, 5.8905)
Luminance	0.1643 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CA3F3B #3BC6CA

analogous

#CA3B7E #CA3F3B #CA863B

triadic

#CA3F3B #3BCA3F #3F3BCA

tetradic

#CA3F3B #7ECA3B #3BC6CA #863BCA

square

#CA3F3B #7ECA3B #3BC6CA #863BCA

split-complementary

#CA3F3B #3BCA86 #3B7ECA

monochromatic

#6D201E #9D2E2B #CA3F3B #D76E6B #E49D9B

Accessibility & contrast

On white

4.90

#CA3F3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#CA3F3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CA3F3B

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CA3F3B	#FFFFFF	#000000	##FFFFFF
##CA3F3B	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665E39

Deuteranopia (green-blind)

#897C36

Tritanopia (blue-blind)

#DE133F

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #ca3f3b;
/* rgb */ color: rgb(202, 63, 59);
/* oklch */ color: oklch(56.9% 0.176 26.1);

Tailwind

colors: {
  custom: {
    50: '#e27c71',
    500: '#ca3f3b',
    950: '#000000',
  },
}

SCSS

$custom: #ca3f3b;
$custom-light: #e27c71;
$custom-dark: #000000;

JSON

{
  "hex": "#ca3f3b",
  "rgb": {
    "r": 202,
    "g": 63,
    "b": 59
  },
  "hsl": {
    "h": 1.678,
    "s": 57.43,
    "l": 51.176
  },
  "oklch": {
    "l": 0.5687,
    "c": 0.17637,
    "h": 26.1
  },
  "luminance": 0.16427
}

Semantic roles & 50–950 ramp

primary

#CA3F3B

secondary

#91CED0

accent

#DCE147

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CA3F3B

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

Preview Lab → · Contrast checker → · Palette generator →