#AD423A#AD423A

#AD423A is a mid, vivid red. Relative luminance 0.131; OKLCH L 52.4% C 0.142 H 27.3°. Best body text is #FFFFFF at 5.81:1 contrast (WCAG AA passes).

Color values

HEX	#AD423A
RGB	rgb(173, 66, 58)
HSL	hsl(4, 50%, 45%)
HSV	hsv(4, 66%, 68%)
CMYK	cmyk(0%, 61.8%, 66.5%, 32.2%)
CIE-LAB	lab(42.90, 43.27, 27.71)
CIE-LCH	lch(42.90, 51.38, 32.64°)
OKLab	oklab(52.43% 0.1262 0.0651)
OKLCH	oklch(52.43% 0.142 27.3)
XYZ	xyz(19.9475, 13.0888, 5.4782)
Luminance	0.1309 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD423A #3AA5AD

analogous

#AD3A6B #AD423A #AD7B3A

triadic

#AD423A #3AAD42 #423AAD

tetradic

#AD423A #6BAD3A #3AA5AD #7B3AAD

square

#AD423A #6BAD3A #3AA5AD #7B3AAD

split-complementary

#AD423A #3AAD7B #3A6BAD

monochromatic

#511F1B #7F312B #AD423A #C8635C #D88F8A

Accessibility & contrast

On white

5.81

#AD423A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.62

#AD423A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD423A

5.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD423A	#FFFFFF	#000000	##FFFFFF
##AD423A	1.00	5.81	3.62	5.81
#FFFFFF	5.81	1.00	21.00	1.00
#000000	3.62	21.00	1.00	21.00
##FFFFFF	5.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5739

Deuteranopia (green-blind)

#796E37

Tritanopia (blue-blind)

#BE2B41

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #ad423a;
/* rgb */ color: rgb(173, 66, 58);
/* oklch */ color: oklch(52.4% 0.142 27.3);

Tailwind

colors: {
  custom: {
    50: '#cc7b70',
    500: '#ad423a',
    950: '#000000',
  },
}

SCSS

$custom: #ad423a;
$custom-light: #cc7b70;
$custom-dark: #000000;

JSON

{
  "hex": "#ad423a",
  "rgb": {
    "r": 173,
    "g": 66,
    "b": 58
  },
  "hsl": {
    "h": 4.174,
    "s": 49.784,
    "l": 45.294
  },
  "oklch": {
    "l": 0.52429,
    "c": 0.14198,
    "h": 27.3
  },
  "luminance": 0.13086
}

Semantic roles & 50–950 ramp

primary

#AD423A

secondary

#81BDC2

accent

#D0D94E

background

#FDF7F6

surface

#FAEEEC

border

#D3C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #AD423A

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

Preview Lab → · Contrast checker → · Palette generator →