#AD3128#AD3128

#AD3128 is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.2% C 0.162 H 28.5°. Best body text is #FFFFFF at 6.47:1 contrast (WCAG AA passes).

Color values

HEX	#AD3128
RGB	rgb(173, 49, 40)
HSL	hsl(4, 62%, 42%)
HSV	hsv(4, 77%, 68%)
CMYK	cmyk(0%, 71.7%, 76.9%, 32.2%)
CIE-LAB	lab(39.98, 49.62, 34.85)
CIE-LCH	lch(39.98, 60.63, 35.09°)
OKLab	oklab(50.16% 0.1424 0.0772)
OKLCH	oklch(50.16% 0.162 28.5)
XYZ	xyz(18.7170, 11.2369, 3.1905)
Luminance	0.1123 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3128 #28A4AD

analogous

#AD2862 #AD3128 #AD7428

triadic

#AD3128 #28AD31 #3128AD

tetradic

#AD3128 #62AD28 #28A4AD #7428AD

square

#AD3128 #62AD28 #28A4AD #7428AD

split-complementary

#AD3128 #28AD74 #2862AD

monochromatic

#4A1511 #7B231D #AD3128 #D3493F #DE7971

Accessibility & contrast

On white

6.47

#AD3128 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#AD3128 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3128

6.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3128	#FFFFFF	#000000	##FFFFFF
##AD3128	1.00	6.47	3.25	6.47
#FFFFFF	6.47	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554D26

Deuteranopia (green-blind)

#746823

Tritanopia (blue-blind)

#BF0030

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #ad3128;
/* rgb */ color: rgb(173, 49, 40);
/* oklch */ color: oklch(50.2% 0.162 28.5);

Tailwind

colors: {
  custom: {
    50: '#ce7263',
    500: '#ad3128',
    950: '#000000',
  },
}

SCSS

$custom: #ad3128;
$custom-light: #ce7263;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3128",
  "rgb": {
    "r": 173,
    "g": 49,
    "b": 40
  },
  "hsl": {
    "h": 4.06,
    "s": 62.441,
    "l": 41.765
  },
  "oklch": {
    "l": 0.50161,
    "c": 0.16199,
    "h": 28.5
  },
  "luminance": 0.11234
}

Semantic roles & 50–950 ramp

primary

#AD3128

secondary

#6CBFC5

accent

#DAE642

background

#FDF7F5

surface

#FBEDEA

border

#D4C8C6

text

#150805

muted

#837B79

Preview Lab

Preview with #AD3128

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

Preview Lab → · Contrast checker → · Palette generator →