#C03339#C03339

#C03339 is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.9% C 0.177 H 23.4°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#C03339
RGB	rgb(192, 51, 57)
HSL	hsl(357, 58%, 48%)
HSV	hsv(357, 73%, 75%)
CMYK	cmyk(0%, 73.4%, 70.3%, 24.7%)
CIE-LAB	lab(44.05, 55.71, 30.50)
CIE-LCH	lch(44.05, 63.51, 28.70°)
OKLab	oklab(53.92% 0.1629 0.0703)
OKLCH	oklch(53.92% 0.177 23.4)
XYZ	xyz(23.6632, 13.8731, 5.3019)
Luminance	0.1387 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C03339 #33C0BA

analogous

#C0337F #C03339 #C07433

triadic

#C03339 #39C033 #3339C0

tetradic

#C03339 #7FC033 #33C0BA #7433C0

square

#C03339 #7FC033 #33C0BA #7433C0

split-complementary

#C03339 #33C074 #337FC0

monochromatic

#5F191C #90262B #C03339 #D45C61 #E18D90

Accessibility & contrast

On white

5.56

#C03339 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#C03339 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03339

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C03339	#FFFFFF	#000000	##FFFFFF
##C03339	1.00	5.56	3.77	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C5538

Deuteranopia (green-blind)

#7F7334

Tritanopia (blue-blind)

#D30037

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #c03339;
/* rgb */ color: rgb(192, 51, 57);
/* oklch */ color: oklch(53.9% 0.177 23.4);

Tailwind

colors: {
  custom: {
    50: '#db756f',
    500: '#c03339',
    950: '#000000',
  },
}

SCSS

$custom: #c03339;
$custom-light: #db756f;
$custom-dark: #000000;

JSON

{
  "hex": "#c03339",
  "rgb": {
    "r": 192,
    "g": 51,
    "b": 57
  },
  "hsl": {
    "h": 357.447,
    "s": 58.025,
    "l": 47.647
  },
  "oklch": {
    "l": 0.53923,
    "c": 0.17743,
    "h": 23.4
  },
  "luminance": 0.1387
}

Semantic roles & 50–950 ramp

primary

#C03339

secondary

#84CBC8

accent

#E1DB47

background

#FEF7F6

surface

#FDEDEC

border

#D5C8C7

text

#160907

muted

#847B7A

Preview Lab

Preview with #C03339

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

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