#CF4537#CF4537

#CF4537 is a mid, vivid red. Relative luminance 0.178; OKLCH L 58.3% C 0.177 H 29.3°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#CF4537
RGB	rgb(207, 69, 55)
HSL	hsl(6, 61%, 51%)
HSV	hsv(6, 73%, 81%)
CMYK	cmyk(0%, 66.7%, 73.4%, 18.8%)
CIE-LAB	lab(49.25, 53.60, 38.37)
CIE-LCH	lch(49.25, 65.92, 35.60°)
OKLab	oklab(58.31% 0.154 0.0863)
OKLCH	oklch(58.31% 0.177 29.3)
XYZ	xyz(28.5530, 17.8016, 5.5463)
Luminance	0.1780 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#CF4537 #37C1CF

analogous

#CF3775 #CF4537 #CF9137

triadic

#CF4537 #37CF45 #4537CF

tetradic

#CF4537 #75CF37 #37C1CF #9137CF

square

#CF4537 #75CF37 #37C1CF #9137CF

split-complementary

#CF4537 #37CF91 #3775CF

monochromatic

#71231B #A23227 #CF4537 #DB7368 #E7A19A

Accessibility & contrast

On white

4.61

#CF4537 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.56

#CF4537 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #CF4537

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##CF4537	#FFFFFF	#000000	##FFFFFF
##CF4537	1.00	4.61	4.56	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.56	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C6234

Deuteranopia (green-blind)

#8E8032

Tritanopia (blue-blind)

#E41D43

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #cf4537;
/* rgb */ color: rgb(207, 69, 55);
/* oklch */ color: oklch(58.3% 0.177 29.3);

Tailwind

colors: {
  custom: {
    50: '#e6806f',
    500: '#cf4537',
    950: '#000000',
  },
}

SCSS

$custom: #cf4537;
$custom-light: #e6806f;
$custom-dark: #000000;

JSON

{
  "hex": "#cf4537",
  "rgb": {
    "r": 207,
    "g": 69,
    "b": 55
  },
  "hsl": {
    "h": 5.526,
    "s": 61.29,
    "l": 51.373
  },
  "oklch": {
    "l": 0.58306,
    "c": 0.17658,
    "h": 29.3
  },
  "luminance": 0.17797
}

Semantic roles & 50–950 ramp

primary

#CF4537

secondary

#8FCCD2

accent

#D6E443

background

#FFF8F6

surface

#FFEFEC

border

#D7CAC7

text

#170B07

muted

#857C7A

Preview Lab

Preview with #CF4537

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

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