#C33728#C33728

#C33728 is a mid, vivid red. Relative luminance 0.145; OKLCH L 54.6% C 0.179 H 30.0°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#C33728
RGB	rgb(195, 55, 40)
HSL	hsl(6, 66%, 46%)
HSV	hsv(6, 79%, 76%)
CMYK	cmyk(0%, 71.8%, 79.5%, 23.5%)
CIE-LAB	lab(44.93, 54.53, 41.30)
CIE-LCH	lch(44.93, 68.40, 37.14°)
OKLab	oklab(54.62% 0.1553 0.0895)
OKLCH	oklch(54.62% 0.179 30)
XYZ	xyz(24.2577, 14.4914, 3.5269)
Luminance	0.1449 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#C33728 #28B4C3

analogous

#C32867 #C33728 #C38428

triadic

#C33728 #28C337 #3728C3

tetradic

#C33728 #67C328 #28B4C3 #8428C3

square

#C33728 #67C328 #28B4C3 #8428C3

split-complementary

#C33728 #28C384 #2867C3

monochromatic

#5D1A13 #90291E #C33728 #DB5B4E #E58A80

Accessibility & contrast

On white

5.39

#C33728 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#C33728 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #C33728

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##C33728	#FFFFFF	#000000	##FFFFFF
##C33728	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615725

Deuteranopia (green-blind)

#837622

Tritanopia (blue-blind)

#D70035

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #c33728;
/* rgb */ color: rgb(195, 55, 40);
/* oklch */ color: oklch(54.6% 0.179 30.0);

Tailwind

colors: {
  custom: {
    50: '#de7763',
    500: '#c33728',
    950: '#000000',
  },
}

SCSS

$custom: #c33728;
$custom-light: #de7763;
$custom-dark: #000000;

JSON

{
  "hex": "#c33728",
  "rgb": {
    "r": 195,
    "g": 55,
    "b": 40
  },
  "hsl": {
    "h": 5.806,
    "s": 65.957,
    "l": 46.078
  },
  "oklch": {
    "l": 0.54617,
    "c": 0.17926,
    "h": 30
  },
  "luminance": 0.14488
}

Semantic roles & 50–950 ramp

primary

#C33728

secondary

#79C6CE

accent

#D8E93F

background

#FFF7F6

surface

#FEEEEB

border

#D6C9C6

text

#170905

muted

#857B7A

Preview Lab

Preview with #C33728

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

Preview Lab → · Contrast checker → · Palette generator →