#AD283A#AD283A

#AD283A is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.6% C 0.168 H 18.9°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#AD283A
RGB	rgb(173, 40, 58)
HSL	hsl(352, 62%, 42%)
HSV	hsv(352, 77%, 68%)
CMYK	cmyk(0%, 76.9%, 66.5%, 32.2%)
CIE-LAB	lab(39.09, 53.66, 22.97)
CIE-LCH	lch(39.09, 58.37, 23.18°)
OKLab	oklab(49.58% 0.1591 0.0545)
OKLCH	oklch(49.58% 0.168 18.9)
XYZ	xyz(18.7581, 10.7101, 5.0817)
Luminance	0.1071 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD283A #28AD9B

analogous

#AD287D #AD283A #AD5928

triadic

#AD283A #3AAD28 #283AAD

tetradic

#AD283A #7DAD28 #28AD9B #5928AD

square

#AD283A #7DAD28 #28AD9B #5928AD

split-complementary

#AD283A #28AD59 #287DAD

monochromatic

#4A1119 #7B1D29 #AD283A #D33F53 #DE7180

Accessibility & contrast

On white

6.68

#AD283A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#AD283A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD283A

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD283A	#FFFFFF	#000000	##FFFFFF
##AD283A	1.00	6.68	3.14	6.68
#FFFFFF	6.68	1.00	21.00	1.00
#000000	3.14	21.00	1.00	21.00
##FFFFFF	6.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4A3A

Deuteranopia (green-blind)

#706636

Tritanopia (blue-blind)

#BE0030

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #ad283a;
/* rgb */ color: rgb(173, 40, 58);
/* oklch */ color: oklch(49.6% 0.168 18.9);

Tailwind

colors: {
  custom: {
    50: '#cd6e70',
    500: '#ad283a',
    950: '#000000',
  },
}

SCSS

$custom: #ad283a;
$custom-light: #cd6e70;
$custom-dark: #000000;

JSON

{
  "hex": "#ad283a",
  "rgb": {
    "r": 173,
    "g": 40,
    "b": 58
  },
  "hsl": {
    "h": 351.88,
    "s": 62.441,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49582,
    "c": 0.16819,
    "h": 18.9
  },
  "luminance": 0.10707
}

Semantic roles & 50–950 ramp

primary

#AD283A

secondary

#6CC5B9

accent

#E6CF42

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #AD283A

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

Preview Lab → · Contrast checker → · Palette generator →