#C63B25#C63B25

#C63B25 is a mid, vivid red. Relative luminance 0.153; OKLCH L 55.5% C 0.179 H 31.8°. Best body text is #FFFFFF at 5.18:1 contrast (WCAG AA passes).

Color values

HEX	#C63B25
RGB	rgb(198, 59, 37)
HSL	hsl(8, 69%, 46%)
HSV	hsv(8, 81%, 78%)
CMYK	cmyk(0%, 70.2%, 81.3%, 22.4%)
CIE-LAB	lab(46.00, 53.91, 44.10)
CIE-LCH	lch(46.00, 69.65, 39.28°)
OKLab	oklab(55.51% 0.1525 0.0944)
OKLCH	oklch(55.51% 0.179 31.8)
XYZ	xyz(25.1896, 15.2711, 3.3712)
Luminance	0.1527 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C63B25 #25B0C6

analogous

#C6255F #C63B25 #C68B25

triadic

#C63B25 #25C63B #3B25C6

tetradic

#C63B25 #5FC625 #25B0C6 #8B25C6

square

#C63B25 #5FC625 #25B0C6 #8B25C6

split-complementary

#C63B25 #25C68B #255FC6

monochromatic

#5F1C12 #922C1B #C63B25 #DD5F4B #E78D7E

Accessibility & contrast

On white

5.18

#C63B25 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.05

#C63B25 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C63B25

5.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C63B25	#FFFFFF	#000000	##FFFFFF
##C63B25	1.00	5.18	4.05	5.18
#FFFFFF	5.18	1.00	21.00	1.00
#000000	4.05	21.00	1.00	21.00
##FFFFFF	5.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645921

Deuteranopia (green-blind)

#87781E

Tritanopia (blue-blind)

#DA0037

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #c63b25;
/* rgb */ color: rgb(198, 59, 37);
/* oklch */ color: oklch(55.5% 0.179 31.8);

Tailwind

colors: {
  custom: {
    50: '#e17a62',
    500: '#c63b25',
    950: '#000000',
  },
}

SCSS

$custom: #c63b25;
$custom-light: #e17a62;
$custom-dark: #000000;

JSON

{
  "hex": "#c63b25",
  "rgb": {
    "r": 198,
    "g": 59,
    "b": 37
  },
  "hsl": {
    "h": 8.199,
    "s": 68.511,
    "l": 46.078
  },
  "oklch": {
    "l": 0.55513,
    "c": 0.17936,
    "h": 31.8
  },
  "luminance": 0.15267
}

Semantic roles & 50–950 ramp

primary

#C63B25

secondary

#77C3CF

accent

#D3EB3C

background

#FFF7F5

surface

#FEEEEA

border

#D6C9C6

text

#170A05

muted

#857C79

Preview Lab

Preview with #C63B25

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

Preview Lab → · Contrast checker → · Palette generator →