#C03F3F#C03F3F

#C03F3F is a mid, vivid red. Relative luminance 0.151; OKLCH L 55.3% C 0.165 H 24.3°. Best body text is #FFFFFF at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#C03F3F
RGB	rgb(192, 63, 63)
HSL	hsl(0, 51%, 50%)
HSV	hsv(0, 67%, 75%)
CMYK	cmyk(0%, 67.2%, 67.2%, 24.7%)
CIE-LAB	lab(45.80, 51.45, 29.06)
CIE-LCH	lch(45.80, 59.09, 29.46°)
OKLab	oklab(55.26% 0.1507 0.0681)
OKLCH	oklch(55.26% 0.165 24.3)
XYZ	xyz(24.4155, 15.1238, 6.3352)
Luminance	0.1512 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C03F3F #3FC0C0

analogous

#C03F80 #C03F3F #C0803F

triadic

#C03F3F #3FC03F #3F3FC0

tetradic

#C03F3F #80C03F #3FC0C0 #7F3FC0

square

#C03F3F #80C03F #3FC0C0 #7F3FC0

split-complementary

#C03F3F #3FC080 #3F7FC0

monochromatic

#642121 #923030 #C03F3F #CF6D6D #DE9B9B

Accessibility & contrast

On white

5.22

#C03F3F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#C03F3F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03F3F

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C03F3F	#FFFFFF	#000000	##FFFFFF
##C03F3F	1.00	5.22	4.02	5.22
#FFFFFF	5.22	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#625B3E

Deuteranopia (green-blind)

#82773B

Tritanopia (blue-blind)

#D31D40

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c03f3f;
/* rgb */ color: rgb(192, 63, 63);
/* oklch */ color: oklch(55.3% 0.165 24.3);

Tailwind

colors: {
  custom: {
    50: '#da7b74',
    500: '#c03f3f',
    950: '#000000',
  },
}

SCSS

$custom: #c03f3f;
$custom-light: #da7b74;
$custom-dark: #000000;

JSON

{
  "hex": "#c03f3f",
  "rgb": {
    "r": 192,
    "g": 63,
    "b": 63
  },
  "hsl": {
    "h": 0,
    "s": 50.588,
    "l": 50
  },
  "oklch": {
    "l": 0.55261,
    "c": 0.16532,
    "h": 24.3
  },
  "luminance": 0.1512
}

Semantic roles & 50–950 ramp

primary

#C03F3F

secondary

#91CACA

accent

#DADA4E

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#160A08

muted

#847C7B

Preview Lab

Preview with #C03F3F

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

Preview Lab → · Contrast checker → · Palette generator →