#AD2528#AD2528

#AD2528 is a mid, vivid red. Relative luminance 0.104; OKLCH L 49.1% C 0.172 H 25.4°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#AD2528
RGB	rgb(173, 37, 40)
HSL	hsl(359, 65%, 41%)
HSV	hsv(359, 79%, 68%)
CMYK	cmyk(0%, 78.6%, 76.9%, 32.2%)
CIE-LAB	lab(38.49, 53.76, 33.24)
CIE-LCH	lch(38.49, 63.20, 31.73°)
OKLab	oklab(49.05% 0.1554 0.0737)
OKLCH	oklch(49.05% 0.172 25.4)
XYZ	xyz(18.2803, 10.3635, 3.0449)
Luminance	0.1036 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD2528 #25ADAA

analogous

#AD256C #AD2528 #AD6625

triadic

#AD2528 #28AD25 #2528AD

tetradic

#AD2528 #6CAD25 #25ADAA #6625AD

square

#AD2528 #6CAD25 #25ADAA #6625AD

split-complementary

#AD2528 #25AD66 #256CAD

monochromatic

#480F11 #7B1A1C #AD2528 #D53A3E #E06D6F

Accessibility & contrast

On white

6.84

#AD2528 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#AD2528 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD2528

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD2528	#FFFFFF	#000000	##FFFFFF
##AD2528	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4826

Deuteranopia (green-blind)

#716523

Tritanopia (blue-blind)

#BF0028

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #ad2528;
/* rgb */ color: rgb(173, 37, 40);
/* oklch */ color: oklch(49.1% 0.172 25.4);

Tailwind

colors: {
  custom: {
    50: '#ce6c62',
    500: '#ad2528',
    950: '#000000',
  },
}

SCSS

$custom: #ad2528;
$custom-light: #ce6c62;
$custom-dark: #000000;

JSON

{
  "hex": "#ad2528",
  "rgb": {
    "r": 173,
    "g": 37,
    "b": 40
  },
  "hsl": {
    "h": 358.676,
    "s": 64.762,
    "l": 41.176
  },
  "oklch": {
    "l": 0.49051,
    "c": 0.17204,
    "h": 25.4
  },
  "luminance": 0.10361
}

Semantic roles & 50–950 ramp

primary

#AD2528

secondary

#68C6C4

accent

#E8E440

background

#FDF6F5

surface

#FBECEA

border

#D4C7C6

text

#150805

muted

#837B79

Preview Lab

Preview with #AD2528

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

Preview Lab → · Contrast checker → · Palette generator →