#AD2820#AD2820

#AD2820 is a mid, vivid red. Relative luminance 0.105; OKLCH L 49.2% C 0.171 H 28.6°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#AD2820
RGB	rgb(173, 40, 32)
HSL	hsl(3, 69%, 40%)
HSV	hsv(3, 82%, 68%)
CMYK	cmyk(0%, 76.9%, 81.5%, 32.2%)
CIE-LAB	lab(38.74, 52.53, 38.04)
CIE-LCH	lch(38.74, 64.86, 35.91°)
OKLab	oklab(49.21% 0.1499 0.0817)
OKLCH	oklch(49.21% 0.171 28.6)
XYZ	xyz(18.2553, 10.5090, 2.4335)
Luminance	0.1051 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD2820 #20A5AD

analogous

#AD205F #AD2820 #AD6E20

triadic

#AD2820 #20AD28 #2820AD

tetradic

#AD2820 #5FAD20 #20A5AD #6E20AD

square

#AD2820 #5FAD20 #20A5AD #6E20AD

split-complementary

#AD2820 #20AD6E #205FAD

monochromatic

#46100D #791C16 #AD2820 #D93B31 #E26C65

Accessibility & contrast

On white

6.77

#AD2820 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#AD2820 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD2820

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD2820	#FFFFFF	#000000	##FFFFFF
##AD2820	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51491D

Deuteranopia (green-blind)

#726619

Tritanopia (blue-blind)

#BF0028

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #ad2820;
/* rgb */ color: rgb(173, 40, 32);
/* oklch */ color: oklch(49.2% 0.171 28.6);

Tailwind

colors: {
  custom: {
    50: '#cf6d5d',
    500: '#ad2820',
    950: '#000000',
  },
}

SCSS

$custom: #ad2820;
$custom-light: #cf6d5d;
$custom-dark: #000000;

JSON

{
  "hex": "#ad2820",
  "rgb": {
    "r": 173,
    "g": 40,
    "b": 32
  },
  "hsl": {
    "h": 3.404,
    "s": 68.78,
    "l": 40.196
  },
  "oklch": {
    "l": 0.49213,
    "c": 0.17071,
    "h": 28.6
  },
  "luminance": 0.10506
}

Semantic roles & 50–950 ramp

primary

#AD2820

secondary

#61C2C8

accent

#E2EC3C

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160804

muted

#847A79

Preview Lab

Preview with #AD2820

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

Preview Lab → · Contrast checker → · Palette generator →