#C6403B#C6403B

#C6403B is a mid, vivid red. Relative luminance 0.160; OKLCH L 56.3% C 0.171 H 26.3°. Best body text is #FFFFFF at 5.00:1 contrast (WCAG AA passes).

Color values

HEX	#C6403B
RGB	rgb(198, 64, 59)
HSL	hsl(2, 55%, 50%)
HSV	hsv(2, 70%, 78%)
CMYK	cmyk(0%, 67.7%, 70.2%, 22.4%)
CIE-LAB	lab(46.96, 52.82, 33.05)
CIE-LCH	lch(46.96, 62.31, 32.04°)
OKLab	oklab(56.31% 0.1535 0.076)
OKLCH	oklch(56.31% 0.171 26.3)
XYZ	xyz(25.9143, 15.9921, 5.8591)
Luminance	0.1599 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C6403B #3BC1C6

analogous

#C63B7C #C6403B #C6853B

triadic

#C6403B #3BC640 #403BC6

tetradic

#C6403B #7CC63B #3BC1C6 #853BC6

square

#C6403B #7CC63B #3BC1C6 #853BC6

split-complementary

#C6403B #3BC685 #3B7CC6

monochromatic

#68211E #98302C #C6403B #D46E6A #E29C9A

Accessibility & contrast

On white

5.00

#C6403B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.20

#C6403B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C6403B

5.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C6403B	#FFFFFF	#000000	##FFFFFF
##C6403B	1.00	5.00	4.20	5.00
#FFFFFF	5.00	1.00	21.00	1.00
#000000	4.20	21.00	1.00	21.00
##FFFFFF	5.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#655D39

Deuteranopia (green-blind)

#877A37

Tritanopia (blue-blind)

#D91940

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #c6403b;
/* rgb */ color: rgb(198, 64, 59);
/* oklch */ color: oklch(56.3% 0.171 26.3);

Tailwind

colors: {
  custom: {
    50: '#df7c71',
    500: '#c6403b',
    950: '#000000',
  },
}

SCSS

$custom: #c6403b;
$custom-light: #df7c71;
$custom-dark: #000000;

JSON

{
  "hex": "#c6403b",
  "rgb": {
    "r": 198,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 2.158,
    "s": 54.941,
    "l": 50.392
  },
  "oklch": {
    "l": 0.5631,
    "c": 0.17124,
    "h": 26.3
  },
  "luminance": 0.15988
}

Semantic roles & 50–950 ramp

primary

#C6403B

secondary

#8FCBCD

accent

#D9DE4A

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#170A07

muted

#857C7A

Preview Lab

Preview with #C6403B

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

Preview Lab → · Contrast checker → · Palette generator →