#C53739#C53739

#C53739 is a mid, vivid red. Relative luminance 0.149; OKLCH L 55.2% C 0.179 H 24.6°. Best body text is #FFFFFF at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#C53739
RGB	rgb(197, 55, 57)
HSL	hsl(359, 56%, 49%)
HSV	hsv(359, 72%, 77%)
CMYK	cmyk(0%, 72.1%, 71.1%, 22.7%)
CIE-LAB	lab(45.50, 55.84, 32.45)
CIE-LCH	lch(45.50, 64.59, 30.16°)
OKLab	oklab(55.17% 0.1627 0.0744)
OKLCH	oklch(55.17% 0.179 24.6)
XYZ	xyz(25.1335, 14.9019, 5.4230)
Luminance	0.1490 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C53739 #37C5C3

analogous

#C53780 #C53739 #C57C37

triadic

#C53739 #39C537 #3739C5

tetradic

#C53739 #80C537 #37C5C3 #7C37C5

square

#C53739 #80C537 #37C5C3 #7C37C5

split-complementary

#C53739 #37C57C #3780C5

monochromatic

#651C1D #952A2B #C53739 #D46567 #E19596

Accessibility & contrast

On white

5.28

#C53739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.98

#C53739 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C53739

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C53739	#FFFFFF	#000000	##FFFFFF
##C53739	1.00	5.28	3.98	5.28
#FFFFFF	5.28	1.00	21.00	1.00
#000000	3.98	21.00	1.00	21.00
##FFFFFF	5.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605838

Deuteranopia (green-blind)

#837734

Tritanopia (blue-blind)

#D90039

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c53739;
/* rgb */ color: rgb(197, 55, 57);
/* oklch */ color: oklch(55.2% 0.179 24.6);

Tailwind

colors: {
  custom: {
    50: '#df786f',
    500: '#c53739',
    950: '#000000',
  },
}

SCSS

$custom: #c53739;
$custom-light: #df786f;
$custom-dark: #000000;

JSON

{
  "hex": "#c53739",
  "rgb": {
    "r": 197,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 359.155,
    "s": 56.349,
    "l": 49.412
  },
  "oklch": {
    "l": 0.55173,
    "c": 0.1789,
    "h": 24.6
  },
  "luminance": 0.14898
}

Semantic roles & 50–950 ramp

primary

#C53739

secondary

#8BCDCC

accent

#E0DE48

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C53739

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

Preview Lab → · Contrast checker → · Palette generator →