#C5372B#C5372B

#C5372B is a mid, vivid red. Relative luminance 0.148; OKLCH L 55.0% C 0.181 H 29.1°. Best body text is #FFFFFF at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#C5372B
RGB	rgb(197, 55, 43)
HSL	hsl(5, 64%, 47%)
HSV	hsv(5, 78%, 77%)
CMYK	cmyk(0%, 72.1%, 78.2%, 22.7%)
CIE-LAB	lab(45.33, 55.27, 40.21)
CIE-LCH	lch(45.33, 68.35, 36.04°)
OKLab	oklab(55% 0.158 0.0879)
OKLCH	oklch(55% 0.181 29.1)
XYZ	xyz(24.8311, 14.7809, 3.8306)
Luminance	0.1478 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5372B #2BB9C5

analogous

#C52B6C #C5372B #C5842B

triadic

#C5372B #2BC537 #372BC5

tetradic

#C5372B #6CC52B #2BB9C5 #842BC5

square

#C5372B #6CC52B #2BB9C5 #842BC5

split-complementary

#C5372B #2BC584 #2B6CC5

monochromatic

#611B15 #932920 #C5372B #DA5E54 #E58D86

Accessibility & contrast

On white

5.31

#C5372B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.96

#C5372B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C5372B

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5372B	#FFFFFF	#000000	##FFFFFF
##C5372B	1.00	5.31	3.96	5.31
#FFFFFF	5.31	1.00	21.00	1.00
#000000	3.96	21.00	1.00	21.00
##FFFFFF	5.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615728

Deuteranopia (green-blind)

#847725

Tritanopia (blue-blind)

#D90036

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #c5372b;
/* rgb */ color: rgb(197, 55, 43);
/* oklch */ color: oklch(55.0% 0.181 29.1);

Tailwind

colors: {
  custom: {
    50: '#e07865',
    500: '#c5372b',
    950: '#000000',
  },
}

SCSS

$custom: #c5372b;
$custom-light: #e07865;
$custom-dark: #000000;

JSON

{
  "hex": "#c5372b",
  "rgb": {
    "r": 197,
    "g": 55,
    "b": 43
  },
  "hsl": {
    "h": 4.675,
    "s": 64.167,
    "l": 47.059
  },
  "oklch": {
    "l": 0.54995,
    "c": 0.18082,
    "h": 29.1
  },
  "luminance": 0.14777
}

Semantic roles & 50–950 ramp

primary

#C5372B

secondary

#7EC8CE

accent

#DAE741

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C5372B

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

Preview Lab → · Contrast checker → · Palette generator →