#C03A37#C03A37

#C03A37 is a mid, vivid red. Relative luminance 0.145; OKLCH L 54.6% C 0.171 H 25.9°. Best body text is #FFFFFF at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#C03A37
RGB	rgb(192, 58, 55)
HSL	hsl(1, 55%, 48%)
HSV	hsv(1, 71%, 75%)
CMYK	cmyk(0%, 69.8%, 71.4%, 24.7%)
CIE-LAB	lab(44.96, 53.03, 32.75)
CIE-LCH	lch(44.96, 62.33, 31.70°)
OKLab	oklab(54.59% 0.154 0.0749)
OKLCH	oklch(54.59% 0.171 25.9)
XYZ	xyz(23.9435, 14.5120, 5.1540)
Luminance	0.1451 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C03A37 #37BDC0

analogous

#C03778 #C03A37 #C07E37

triadic

#C03A37 #37C03A #3A37C0

tetradic

#C03A37 #78C037 #37BDC0 #7E37C0

square

#C03A37 #78C037 #37BDC0 #7E37C0

split-complementary

#C03A37 #37C07E #3778C0

monochromatic

#611D1C #902C29 #C03A37 #D26562 #E09392

Accessibility & contrast

On white

5.38

#C03A37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#C03A37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03A37

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C03A37	#FFFFFF	#000000	##FFFFFF
##C03A37	1.00	5.38	3.90	5.38
#FFFFFF	5.38	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605835

Deuteranopia (green-blind)

#817533

Tritanopia (blue-blind)

#D30C3B

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c03a37;
/* rgb */ color: rgb(192, 58, 55);
/* oklch */ color: oklch(54.6% 0.171 25.9);

Tailwind

colors: {
  custom: {
    50: '#db796e',
    500: '#c03a37',
    950: '#000000',
  },
}

SCSS

$custom: #c03a37;
$custom-light: #db796e;
$custom-dark: #000000;

JSON

{
  "hex": "#c03a37",
  "rgb": {
    "r": 192,
    "g": 58,
    "b": 55
  },
  "hsl": {
    "h": 1.314,
    "s": 55.466,
    "l": 48.431
  },
  "oklch": {
    "l": 0.54592,
    "c": 0.17125,
    "h": 25.9
  },
  "luminance": 0.14508
}

Semantic roles & 50–950 ramp

primary

#C03A37

secondary

#88C9CB

accent

#DCDF49

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #C03A37

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

Preview Lab → · Contrast checker → · Palette generator →