#C03837#C03837

#C03837 is a mid, vivid red. Relative luminance 0.143; OKLCH L 54.4% C 0.173 H 25.4°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#C03837
RGB	rgb(192, 56, 55)
HSL	hsl(0, 55%, 48%)
HSV	hsv(0, 71%, 75%)
CMYK	cmyk(0%, 70.8%, 71.4%, 24.7%)
CIE-LAB	lab(44.68, 53.79, 32.43)
CIE-LCH	lch(44.68, 62.81, 31.08°)
OKLab	oklab(54.38% 0.1564 0.0742)
OKLCH	oklch(54.38% 0.173 25.4)
XYZ	xyz(23.8446, 14.3142, 5.1211)
Luminance	0.1431 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C03837 #37BFC0

analogous

#C0377A #C03837 #C07C37

triadic

#C03837 #37C038 #3837C0

tetradic

#C03837 #7AC037 #37BFC0 #7C37C0

square

#C03837 #7AC037 #37BFC0 #7C37C0

split-complementary

#C03837 #37C07C #377AC0

monochromatic

#611C1C #902A29 #C03837 #D26362 #E09292

Accessibility & contrast

On white

5.44

#C03837 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#C03837 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03837

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C03837	#FFFFFF	#000000	##FFFFFF
##C03837	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F5735

Deuteranopia (green-blind)

#817432

Tritanopia (blue-blind)

#D30439

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c03837;
/* rgb */ color: rgb(192, 56, 55);
/* oklch */ color: oklch(54.4% 0.173 25.4);

Tailwind

colors: {
  custom: {
    50: '#db786e',
    500: '#c03837',
    950: '#000000',
  },
}

SCSS

$custom: #c03837;
$custom-light: #db786e;
$custom-dark: #000000;

JSON

{
  "hex": "#c03837",
  "rgb": {
    "r": 192,
    "g": 56,
    "b": 55
  },
  "hsl": {
    "h": 0.438,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.54384,
    "c": 0.17313,
    "h": 25.4
  },
  "luminance": 0.14311
}

Semantic roles & 50–950 ramp

primary

#C03837

secondary

#88CACB

accent

#DEDF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #C03837

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

Preview Lab → · Contrast checker → · Palette generator →