#AD273B#AD273B

#AD273B is a mid, vivid red. Relative luminance 0.107; OKLCH L 49.5% C 0.169 H 18.2°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#AD273B
RGB	rgb(173, 39, 59)
HSL	hsl(351, 63%, 42%)
HSV	hsv(351, 77%, 68%)
CMYK	cmyk(0%, 77.5%, 65.9%, 32.2%)
CIE-LAB	lab(38.99, 54.04, 22.22)
CIE-LCH	lch(38.99, 58.43, 22.36°)
OKLab	oklab(49.52% 0.1605 0.0529)
OKLCH	oklch(49.52% 0.169 18.2)
XYZ	xyz(18.7506, 10.6539, 5.2059)
Luminance	0.1065 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD273B #27AD99

analogous

#AD277E #AD273B #AD5627

triadic

#AD273B #3BAD27 #273BAD

tetradic

#AD273B #7EAD27 #27AD99 #5627AD

square

#AD273B #7EAD27 #27AD99 #5627AD

split-complementary

#AD273B #27AD56 #277EAD

monochromatic

#491019 #7B1C2A #AD273B #D33E54 #DF7080

Accessibility & contrast

On white

6.71

#AD273B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#AD273B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD273B

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD273B	#FFFFFF	#000000	##FFFFFF
##AD273B	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	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: #ad273b;
/* rgb */ color: rgb(173, 39, 59);
/* oklch */ color: oklch(49.5% 0.169 18.2);

Tailwind

colors: {
  custom: {
    50: '#cd6e70',
    500: '#ad273b',
    950: '#000000',
  },
}

SCSS

$custom: #ad273b;
$custom-light: #cd6e70;
$custom-dark: #000000;

JSON

{
  "hex": "#ad273b",
  "rgb": {
    "r": 173,
    "g": 39,
    "b": 59
  },
  "hsl": {
    "h": 351.045,
    "s": 63.208,
    "l": 41.569
  },
  "oklch": {
    "l": 0.49516,
    "c": 0.16903,
    "h": 18.2
  },
  "luminance": 0.10651
}

Semantic roles & 50–950 ramp

primary

#AD273B

secondary

#6AC6B8

accent

#E6CE42

background

#FDF7F6

surface

#FBEDEC

border

#D4C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #AD273B

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

Preview Lab → · Contrast checker → · Palette generator →