#CC4137#CC4137

#CC4137 is a mid, vivid red. Relative luminance 0.169; OKLCH L 57.4% C 0.177 H 28.1°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#CC4137
RGB	rgb(204, 65, 55)
HSL	hsl(4, 59%, 51%)
HSV	hsv(4, 73%, 80%)
CMYK	cmyk(0%, 68.1%, 73%, 20%)
CIE-LAB	lab(48.13, 54.21, 36.96)
CIE-LCH	lch(48.13, 65.61, 34.29°)
OKLab	oklab(57.37% 0.1563 0.0835)
OKLCH	oklch(57.37% 0.177 28.1)
XYZ	xyz(27.4848, 16.8979, 5.4281)
Luminance	0.1689 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CC4137 #37C2CC

analogous

#CC3777 #CC4137 #CC8B37

triadic

#CC4137 #37CC41 #4137CC

tetradic

#CC4137 #77CC37 #37C2CC #8B37CC

square

#CC4137 #77CC37 #37C2CC #8B37CC

split-complementary

#CC4137 #37CC8B #3777CC

monochromatic

#6D211C #9E3028 #CC4137 #D86F68 #E59E99

Accessibility & contrast

On white

4.80

#CC4137 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#CC4137 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #CC4137

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CC4137	#FFFFFF	#000000	##FFFFFF
##CC4137	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#685F35

Deuteranopia (green-blind)

#8B7D32

Tritanopia (blue-blind)

#E01540

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #cc4137;
/* rgb */ color: rgb(204, 65, 55);
/* oklch */ color: oklch(57.4% 0.177 28.1);

Tailwind

colors: {
  custom: {
    50: '#e47e6e',
    500: '#cc4137',
    950: '#000000',
  },
}

SCSS

$custom: #cc4137;
$custom-light: #e47e6e;
$custom-dark: #000000;

JSON

{
  "hex": "#cc4137",
  "rgb": {
    "r": 204,
    "g": 65,
    "b": 55
  },
  "hsl": {
    "h": 4.027,
    "s": 59.363,
    "l": 50.784
  },
  "oklch": {
    "l": 0.57365,
    "c": 0.17718,
    "h": 28.1
  },
  "luminance": 0.16894
}

Semantic roles & 50–950 ramp

primary

#CC4137

secondary

#8ECCD0

accent

#D8E345

background

#FFF8F6

surface

#FEEFEC

border

#D6CAC7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #CC4137

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

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