#AD2428#AD2428

#AD2428 is a mid, vivid red. Relative luminance 0.103; OKLCH L 49.0% C 0.173 H 25.2°. Best body text is #FFFFFF at 6.86:1 contrast (WCAG AA passes).

Color values

HEX	#AD2428
RGB	rgb(173, 36, 40)
HSL	hsl(358, 66%, 41%)
HSV	hsv(358, 79%, 68%)
CMYK	cmyk(0%, 79.2%, 76.9%, 32.2%)
CIE-LAB	lab(38.38, 54.06, 33.12)
CIE-LCH	lch(38.38, 63.40, 31.49°)
OKLab	oklab(48.97% 0.1564 0.0735)
OKLCH	oklch(48.97% 0.173 25.2)
XYZ	xyz(18.2496, 10.3021, 3.0347)
Luminance	0.1030 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD2428 #24ADA9

analogous

#AD246C #AD2428 #AD6424

triadic

#AD2428 #28AD24 #2428AD

tetradic

#AD2428 #6CAD24 #24ADA9 #6424AD

square

#AD2428 #6CAD24 #24ADA9 #6424AD

split-complementary

#AD2428 #24AD64 #246CAD

monochromatic

#480F11 #7A191C #AD2428 #D6393D #E06B6F

Accessibility & contrast

On white

6.86

#AD2428 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#AD2428 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD2428

6.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD2428	#FFFFFF	#000000	##FFFFFF
##AD2428	1.00	6.86	3.06	6.86
#FFFFFF	6.86	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4727

Deuteranopia (green-blind)

#716522

Tritanopia (blue-blind)

#BF0027

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #ad2428;
/* rgb */ color: rgb(173, 36, 40);
/* oklch */ color: oklch(49.0% 0.173 25.2);

Tailwind

colors: {
  custom: {
    50: '#ce6c62',
    500: '#ad2428',
    950: '#000000',
  },
}

SCSS

$custom: #ad2428;
$custom-light: #ce6c62;
$custom-dark: #000000;

JSON

{
  "hex": "#ad2428",
  "rgb": {
    "r": 173,
    "g": 36,
    "b": 40
  },
  "hsl": {
    "h": 358.248,
    "s": 65.55,
    "l": 40.98
  },
  "oklch": {
    "l": 0.48971,
    "c": 0.17279,
    "h": 25.2
  },
  "luminance": 0.10299
}

Semantic roles & 50–950 ramp

primary

#AD2428

secondary

#66C6C4

accent

#E9E43F

background

#FDF6F5

surface

#FBECEA

border

#D4C7C6

text

#150805

muted

#837B79

Preview Lab

Preview with #AD2428

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

Preview Lab → · Contrast checker → · Palette generator →