#C53333#C53333

#C53333 is a mid, vivid red. Relative luminance 0.145; OKLCH L 54.7% C 0.183 H 25.7°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#C53333
RGB	rgb(197, 51, 51)
HSL	hsl(0, 59%, 49%)
HSV	hsv(0, 74%, 77%)
CMYK	cmyk(0%, 74.1%, 74.1%, 22.7%)
CIE-LAB	lab(44.91, 56.98, 35.27)
CIE-LCH	lch(44.91, 67.01, 31.75°)
OKLab	oklab(54.71% 0.165 0.0793)
OKLCH	oklch(54.71% 0.183 25.7)
XYZ	xyz(24.8102, 14.4808, 4.6200)
Luminance	0.1448 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C53333 #33C5C5

analogous

#C5337C #C53333 #C57C33

triadic

#C53333 #33C533 #3333C5

tetradic

#C53333 #7CC533 #33C5C5 #7C33C5

square

#C53333 #7CC533 #33C5C5 #7C33C5

split-complementary

#C53333 #33C57C #337CC5

monochromatic

#641A1A #942626 #C53333 #D65F5F #E29090

Accessibility & contrast

On white

5.39

#C53333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#C53333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C53333

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C53333	#FFFFFF	#000000	##FFFFFF
##C53333	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5631

Deuteranopia (green-blind)

#83762E

Tritanopia (blue-blind)

#D90035

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c53333;
/* rgb */ color: rgb(197, 51, 51);
/* oklch */ color: oklch(54.7% 0.183 25.7);

Tailwind

colors: {
  custom: {
    50: '#df766b',
    500: '#c53333',
    950: '#000000',
  },
}

SCSS

$custom: #c53333;
$custom-light: #df766b;
$custom-dark: #000000;

JSON

{
  "hex": "#c53333",
  "rgb": {
    "r": 197,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 58.871,
    "l": 48.627
  },
  "oklch": {
    "l": 0.54712,
    "c": 0.18309,
    "h": 25.7
  },
  "luminance": 0.14477
}

Semantic roles & 50–950 ramp

primary

#C53333

secondary

#87CDCD

accent

#E2E246

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170906

muted

#857B7A

Preview Lab

Preview with #C53333

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

Preview Lab → · Contrast checker → · Palette generator →