#C3403F#C3403F

#C3403F is a mid, vivid red. Relative luminance 0.156; OKLCH L 55.9% C 0.168 H 24.7°. Best body text is #FFFFFF at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#C3403F
RGB	rgb(195, 64, 63)
HSL	hsl(0, 52%, 51%)
HSV	hsv(0, 68%, 76%)
CMYK	cmyk(0%, 67.2%, 67.7%, 23.5%)
CIE-LAB	lab(46.49, 52.04, 30.02)
CIE-LCH	lch(46.49, 60.07, 29.98°)
OKLab	oklab(55.87% 0.1522 0.0701)
OKLCH	oklch(55.87% 0.168 24.7)
XYZ	xyz(25.2389, 15.6314, 6.3898)
Luminance	0.1563 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C3403F #3FC2C3

analogous

#C33F80 #C3403F #C3823F

triadic

#C3403F #3FC340 #403FC3

tetradic

#C3403F #80C33F #3FC2C3 #823FC3

square

#C3403F #80C33F #3FC2C3 #823FC3

split-complementary

#C3403F #3FC382 #3F80C3

monochromatic

#672120 #96302F #C3403F #D26E6E #E09D9C

Accessibility & contrast

On white

5.09

#C3403F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.13

#C3403F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C3403F

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C3403F	#FFFFFF	#000000	##FFFFFF
##C3403F	1.00	5.09	4.13	5.09
#FFFFFF	5.09	1.00	21.00	1.00
#000000	4.13	21.00	1.00	21.00
##FFFFFF	5.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#645C3E

Deuteranopia (green-blind)

#85793B

Tritanopia (blue-blind)

#D61D41

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #c3403f;
/* rgb */ color: rgb(195, 64, 63);
/* oklch */ color: oklch(55.9% 0.168 24.7);

Tailwind

colors: {
  custom: {
    50: '#dd7c74',
    500: '#c3403f',
    950: '#000000',
  },
}

SCSS

$custom: #c3403f;
$custom-light: #dd7c74;
$custom-dark: #000000;

JSON

{
  "hex": "#c3403f",
  "rgb": {
    "r": 195,
    "g": 64,
    "b": 63
  },
  "hsl": {
    "h": 0.455,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.55872,
    "c": 0.16751,
    "h": 24.7
  },
  "luminance": 0.15628
}

Semantic roles & 50–950 ramp

primary

#C3403F

secondary

#92CCCC

accent

#DBDC4C

background

#FEF7F7

surface

#FDEEED

border

#D5C9C8

text

#160A08

muted

#847C7B

Preview Lab

Preview with #C3403F

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

Preview Lab → · Contrast checker → · Palette generator →