#C83B3B#C83B3B

#C83B3B is a mid, vivid red. Relative luminance 0.157; OKLCH L 56.1% C 0.178 H 25.0°. Best body text is #FFFFFF at 5.07:1 contrast (WCAG AA passes).

Color values

HEX	#C83B3B
RGB	rgb(200, 59, 59)
HSL	hsl(0, 56%, 51%)
HSV	hsv(0, 71%, 78%)
CMYK	cmyk(0%, 70.5%, 70.5%, 21.6%)
CIE-LAB	lab(46.61, 55.42, 32.73)
CIE-LCH	lch(46.61, 64.36, 30.57°)
OKLab	oklab(56.12% 0.1614 0.0752)
OKLCH	oklch(56.12% 0.178 25)
XYZ	xyz(26.1757, 15.7269, 5.7941)
Luminance	0.1572 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C83B3B #3BC8C8

analogous

#C83B81 #C83B3B #C8813B

triadic

#C83B3B #3BC83B #3B3BC8

tetradic

#C83B3B #81C83B #3BC8C8 #813BC8

square

#C83B3B #81C83B #3BC8C8 #813BC8

split-complementary

#C83B3B #3BC881 #3B81C8

monochromatic

#6B1E1E #9A2B2B #C83B3B #D56B6B #E39B9B

Accessibility & contrast

On white

5.07

#C83B3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#C83B3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C83B3B

5.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C83B3B	#FFFFFF	#000000	##FFFFFF
##C83B3B	1.00	5.07	4.14	5.07
#FFFFFF	5.07	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635B3A

Deuteranopia (green-blind)

#867A36

Tritanopia (blue-blind)

#DC063D

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c83b3b;
/* rgb */ color: rgb(200, 59, 59);
/* oklch */ color: oklch(56.1% 0.178 25.0);

Tailwind

colors: {
  custom: {
    50: '#e17a71',
    500: '#c83b3b',
    950: '#000000',
  },
}

SCSS

$custom: #c83b3b;
$custom-light: #e17a71;
$custom-dark: #000000;

JSON

{
  "hex": "#c83b3b",
  "rgb": {
    "r": 200,
    "g": 59,
    "b": 59
  },
  "hsl": {
    "h": 0,
    "s": 56.175,
    "l": 50.784
  },
  "oklch": {
    "l": 0.56115,
    "c": 0.17806,
    "h": 25
  },
  "luminance": 0.15723
}

Semantic roles & 50–950 ramp

primary

#C83B3B

secondary

#90CFCF

accent

#DFDF48

background

#FFF7F6

surface

#FEEEEC

border

#D6C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C83B3B

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

Preview Lab → · Contrast checker → · Palette generator →