#AD283B#AD283B

#AD283B is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.6% C 0.168 H 18.5°. Best body text is #FFFFFF at 6.68:1 contrast (WCAG AA passes).

Color values

HEX	#AD283B
RGB	rgb(173, 40, 59)
HSL	hsl(351, 62%, 42%)
HSV	hsv(351, 77%, 68%)
CMYK	cmyk(0%, 76.9%, 65.9%, 32.2%)
CIE-LAB	lab(39.11, 53.72, 22.37)
CIE-LCH	lch(39.11, 58.19, 22.61°)
OKLab	oklab(49.6% 0.1595 0.0532)
OKLCH	oklch(49.6% 0.168 18.5)
XYZ	xyz(18.7838, 10.7204, 5.2170)
Luminance	0.1072 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD283B #28AD9A

analogous

#AD287D #AD283B #AD5828

triadic

#AD283B #3BAD28 #283BAD

tetradic

#AD283B #7DAD28 #28AD9A #5828AD

square

#AD283B #7DAD28 #28AD9A #5828AD

split-complementary

#AD283B #28AD58 #287DAD

monochromatic

#4A1119 #7B1D2A #AD283B #D33F55 #DE7181

Accessibility & contrast

On white

6.68

#AD283B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.14

#AD283B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD283B

6.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD283B	#FFFFFF	#000000	##FFFFFF
##AD283B	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)

#4E4A3B

Deuteranopia (green-blind)

#706637

Tritanopia (blue-blind)

#BE0030

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #ad283b;
/* rgb */ color: rgb(173, 40, 59);
/* oklch */ color: oklch(49.6% 0.168 18.5);

Tailwind

colors: {
  custom: {
    50: '#cd6e70',
    500: '#ad283b',
    950: '#000000',
  },
}

SCSS

$custom: #ad283b;
$custom-light: #cd6e70;
$custom-dark: #000000;

JSON

{
  "hex": "#ad283b",
  "rgb": {
    "r": 173,
    "g": 40,
    "b": 59
  },
  "hsl": {
    "h": 351.429,
    "s": 62.441,
    "l": 41.765
  },
  "oklch": {
    "l": 0.49601,
    "c": 0.16816,
    "h": 18.5
  },
  "luminance": 0.10718
}

Semantic roles & 50–950 ramp

primary

#AD283B

secondary

#6CC5B8

accent

#E6CE42

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #AD283B

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

Preview Lab → · Contrast checker → · Palette generator →