#C03331#C03331

#C03331 is a mid, vivid red. Relative luminance 0.138; OKLCH L 53.8% C 0.178 H 26.2°. Best body text is #FFFFFF at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#C03331
RGB	rgb(192, 51, 49)
HSL	hsl(1, 59%, 47%)
HSV	hsv(1, 74%, 75%)
CMYK	cmyk(0%, 73.4%, 74.5%, 24.7%)
CIE-LAB	lab(43.94, 55.35, 35.07)
CIE-LCH	lch(43.94, 65.52, 32.36°)
OKLab	oklab(53.81% 0.1601 0.0787)
OKLCH	oklch(53.81% 0.178 26.2)
XYZ	xyz(23.4791, 13.7995, 4.3324)
Luminance	0.1380 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C03331 #31BEC0

analogous

#C03177 #C03331 #C07A31

triadic

#C03331 #31C033 #3331C0

tetradic

#C03331 #77C031 #31BEC0 #7A31C0

square

#C03331 #77C031 #31BEC0 #7A31C0

split-complementary

#C03331 #31C07A #3177C0

monochromatic

#5E1918 #8F2625 #C03331 #D55B59 #E18B8A

Accessibility & contrast

On white

5.59

#C03331 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.76

#C03331 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03331

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C03331	#FFFFFF	#000000	##FFFFFF
##C03331	1.00	5.59	3.76	5.59
#FFFFFF	5.59	1.00	21.00	1.00
#000000	3.76	21.00	1.00	21.00
##FFFFFF	5.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D542F

Deuteranopia (green-blind)

#80732C

Tritanopia (blue-blind)

#D30034

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #c03331;
/* rgb */ color: rgb(192, 51, 49);
/* oklch */ color: oklch(53.8% 0.178 26.2);

Tailwind

colors: {
  custom: {
    50: '#dc7569',
    500: '#c03331',
    950: '#000000',
  },
}

SCSS

$custom: #c03331;
$custom-light: #dc7569;
$custom-dark: #000000;

JSON

{
  "hex": "#c03331",
  "rgb": {
    "r": 192,
    "g": 51,
    "b": 49
  },
  "hsl": {
    "h": 0.839,
    "s": 59.336,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5381,
    "c": 0.17836,
    "h": 26.2
  },
  "luminance": 0.13796
}

Semantic roles & 50–950 ramp

primary

#C03331

secondary

#82CACB

accent

#E0E345

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C03331

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

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