#C03F37#C03F37

#C03F37 is a mid, vivid red. Relative luminance 0.150; OKLCH L 55.1% C 0.166 H 27.5°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#C03F37
RGB	rgb(192, 63, 55)
HSL	hsl(4, 55%, 48%)
HSV	hsv(4, 71%, 75%)
CMYK	cmyk(0%, 67.2%, 71.4%, 24.7%)
CIE-LAB	lab(45.69, 51.03, 33.60)
CIE-LCH	lch(45.69, 61.10, 33.36°)
OKLab	oklab(55.14% 0.1477 0.0768)
OKLCH	oklch(55.14% 0.166 27.5)
XYZ	xyz(24.2079, 15.0408, 5.2422)
Luminance	0.1504 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C03F37 #37B8C0

analogous

#C03773 #C03F37 #C08337

triadic

#C03F37 #37C03F #3F37C0

tetradic

#C03F37 #73C037 #37B8C0 #8337C0

square

#C03F37 #73C037 #37B8C0 #8337C0

split-complementary

#C03F37 #37C083 #3773C0

monochromatic

#61201C #902F29 #C03F37 #D26962 #E09692

Accessibility & contrast

On white

5.24

#C03F37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#C03F37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03F37

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C03F37	#FFFFFF	#000000	##FFFFFF
##C03F37	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635A35

Deuteranopia (green-blind)

#837733

Tritanopia (blue-blind)

#D31A3E

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c03f37;
/* rgb */ color: rgb(192, 63, 55);
/* oklch */ color: oklch(55.1% 0.166 27.5);

Tailwind

colors: {
  custom: {
    50: '#db7b6e',
    500: '#c03f37',
    950: '#000000',
  },
}

SCSS

$custom: #c03f37;
$custom-light: #db7b6e;
$custom-dark: #000000;

JSON

{
  "hex": "#c03f37",
  "rgb": {
    "r": 192,
    "g": 63,
    "b": 55
  },
  "hsl": {
    "h": 3.504,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.55139,
    "c": 0.16648,
    "h": 27.5
  },
  "luminance": 0.15037
}

Semantic roles & 50–950 ramp

primary

#C03F37

secondary

#88C7CB

accent

#D6DF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #C03F37

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

Preview Lab → · Contrast checker → · Palette generator →