#C5403F#C5403F

#C5403F is a mid, vivid red. Relative luminance 0.159; OKLCH L 56.2% C 0.170 H 24.8°. Best body text is #FFFFFF at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#C5403F
RGB	rgb(197, 64, 63)
HSL	hsl(0, 54%, 51%)
HSV	hsv(0, 68%, 77%)
CMYK	cmyk(0%, 67.5%, 68%, 22.7%)
CIE-LAB	lab(46.84, 52.70, 30.53)
CIE-LCH	lch(46.84, 60.90, 30.09°)
OKLab	oklab(56.2% 0.154 0.0711)
OKLCH	oklch(56.2% 0.17 24.8)
XYZ	xyz(25.7593, 15.8997, 6.4142)
Luminance	0.1590 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C5403F #3FC4C5

analogous

#C53F81 #C5403F #C5833F

triadic

#C5403F #3FC540 #403FC5

tetradic

#C5403F #81C53F #3FC4C5 #833FC5

square

#C5403F #81C53F #3FC4C5 #833FC5

split-complementary

#C5403F #3FC583 #3F81C5

monochromatic

#6A2020 #992F2E #C5403F #D36F6E #E19E9D

Accessibility & contrast

On white

5.02

#C5403F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.18

#C5403F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C5403F

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C5403F	#FFFFFF	#000000	##FFFFFF
##C5403F	1.00	5.02	4.18	5.02
#FFFFFF	5.02	1.00	21.00	1.00
#000000	4.18	21.00	1.00	21.00
##FFFFFF	5.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655D3E

Deuteranopia (green-blind)

#867A3B

Tritanopia (blue-blind)

#D81B41

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #c5403f;
/* rgb */ color: rgb(197, 64, 63);
/* oklch */ color: oklch(56.2% 0.170 24.8);

Tailwind

colors: {
  custom: {
    50: '#de7c74',
    500: '#c5403f',
    950: '#000000',
  },
}

SCSS

$custom: #c5403f;
$custom-light: #de7c74;
$custom-dark: #000000;

JSON

{
  "hex": "#c5403f",
  "rgb": {
    "r": 197,
    "g": 64,
    "b": 63
  },
  "hsl": {
    "h": 0.448,
    "s": 53.6,
    "l": 50.98
  },
  "oklch": {
    "l": 0.56204,
    "c": 0.16964,
    "h": 24.8
  },
  "luminance": 0.15896
}

Semantic roles & 50–950 ramp

primary

#C5403F

secondary

#92CDCE

accent

#DCDD4B

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#170A08

muted

#857C7B

Preview Lab

Preview with #C5403F

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

Preview Lab → · Contrast checker → · Palette generator →