#C03F3B#C03F3B

#C03F3B is a mid, vivid red. Relative luminance 0.151; OKLCH L 55.2% C 0.166 H 25.9°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#C03F3B
RGB	rgb(192, 63, 59)
HSL	hsl(2, 53%, 49%)
HSV	hsv(2, 69%, 75%)
CMYK	cmyk(0%, 67.2%, 69.3%, 24.7%)
CIE-LAB	lab(45.74, 51.23, 31.34)
CIE-LCH	lch(45.74, 60.06, 31.46°)
OKLab	oklab(55.2% 0.1492 0.0725)
OKLCH	oklch(55.2% 0.166 25.9)
XYZ	xyz(24.3077, 15.0807, 5.7677)
Luminance	0.1508 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C03F3B #3BBCC0

analogous

#C03B79 #C03F3B #C0823B

triadic

#C03F3B #3BC03F #3F3BC0

tetradic

#C03F3B #79C03B #3BBCC0 #823BC0

square

#C03F3B #79C03B #3BBCC0 #823BC0

split-complementary

#C03F3B #3BC082 #3B79C0

monochromatic

#62201E #91302D #C03F3B #D16B68 #DF9997

Accessibility & contrast

On white

5.23

#C03F3B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#C03F3B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C03F3B

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C03F3B	#FFFFFF	#000000	##FFFFFF
##C03F3B	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635B39

Deuteranopia (green-blind)

#837737

Tritanopia (blue-blind)

#D31C3F

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #c03f3b;
/* rgb */ color: rgb(192, 63, 59);
/* oklch */ color: oklch(55.2% 0.166 25.9);

Tailwind

colors: {
  custom: {
    50: '#db7b71',
    500: '#c03f3b',
    950: '#000000',
  },
}

SCSS

$custom: #c03f3b;
$custom-light: #db7b71;
$custom-dark: #000000;

JSON

{
  "hex": "#c03f3b",
  "rgb": {
    "r": 192,
    "g": 63,
    "b": 59
  },
  "hsl": {
    "h": 1.805,
    "s": 52.988,
    "l": 49.216
  },
  "oklch": {
    "l": 0.55198,
    "c": 0.16586,
    "h": 25.9
  },
  "luminance": 0.15077
}

Semantic roles & 50–950 ramp

primary

#C03F3B

secondary

#8CC9CA

accent

#D8DC4B

background

#FEF7F6

surface

#FDEEEC

border

#D5C9C7

text

#160A07

muted

#847C7A

Preview Lab

Preview with #C03F3B

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

Preview Lab → · Contrast checker → · Palette generator →