#C52828#C52828

#C52828 is a mid, vivid red. Relative luminance 0.135; OKLCH L 53.7% C 0.193 H 26.7°. Best body text is #FFFFFF at 5.66:1 contrast (WCAG AA passes).

Color values

HEX	#C52828
RGB	rgb(197, 40, 40)
HSL	hsl(0, 66%, 46%)
HSV	hsv(0, 80%, 77%)
CMYK	cmyk(0%, 79.7%, 79.7%, 22.7%)
CIE-LAB	lab(43.57, 60.00, 40.05)
CIE-LCH	lch(43.57, 72.14, 33.72°)
OKLab	oklab(53.68% 0.1722 0.0866)
OKLCH	oklch(53.68% 0.193 26.7)
XYZ	xyz(24.1707, 13.5450, 3.3489)
Luminance	0.1354 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C52828 #28C5C5

analogous

#C52877 #C52828 #C57728

triadic

#C52828 #28C528 #2828C5

tetradic

#C52828 #77C528 #28C5C5 #7728C5

square

#C52828 #77C528 #28C5C5 #7728C5

split-complementary

#C52828 #28C577 #2877C5

monochromatic

#5F1313 #921E1E #C52828 #DB4F4F #E68282

Accessibility & contrast

On white

5.66

#C52828 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#C52828 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C52828

5.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C52828	#FFFFFF	#000000	##FFFFFF
##C52828	1.00	5.66	3.71	5.66
#FFFFFF	5.66	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5126

Deuteranopia (green-blind)

#817321

Tritanopia (blue-blind)

#D9002B

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #c52828;
/* rgb */ color: rgb(197, 40, 40);
/* oklch */ color: oklch(53.7% 0.193 26.7);

Tailwind

colors: {
  custom: {
    50: '#e07163',
    500: '#c52828',
    950: '#000000',
  },
}

SCSS

$custom: #c52828;
$custom-light: #e07163;
$custom-dark: #000000;

JSON

{
  "hex": "#c52828",
  "rgb": {
    "r": 197,
    "g": 40,
    "b": 40
  },
  "hsl": {
    "h": 0,
    "s": 66.245,
    "l": 46.471
  },
  "oklch": {
    "l": 0.53675,
    "c": 0.19279,
    "h": 26.7
  },
  "luminance": 0.13541
}

Semantic roles & 50–950 ramp

primary

#C52828

secondary

#7ACECE

accent

#E9E93F

background

#FFF7F5

surface

#FEEDEA

border

#D6C8C6

text

#170905

muted

#857B79

Preview Lab

Preview with #C52828

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

Preview Lab → · Contrast checker → · Palette generator →