#AD403B#AD403B

#AD403B is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.2% C 0.144 H 26.0°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#AD403B
RGB	rgb(173, 64, 59)
HSL	hsl(3, 49%, 45%)
HSV	hsv(3, 66%, 68%)
CMYK	cmyk(0%, 63%, 65.9%, 32.2%)
CIE-LAB	lab(42.57, 44.25, 26.71)
CIE-LCH	lch(42.57, 51.69, 31.11°)
OKLab	oklab(52.19% 0.1295 0.063)
OKLCH	oklch(52.19% 0.144 26)
XYZ	xyz(19.8584, 12.8695, 5.5752)
Luminance	0.1287 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD403B #3BA8AD

analogous

#AD3B6F #AD403B #AD793B

triadic

#AD403B #3BAD40 #403BAD

tetradic

#AD403B #6FAD3B #3BA8AD #793BAD

square

#AD403B #6FAD3B #3BA8AD #793BAD

split-complementary

#AD403B #3BAD79 #3B6FAD

monochromatic

#521E1C #7F2F2B #AD403B #C8625D #D78E8B

Accessibility & contrast

On white

5.88

#AD403B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#AD403B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD403B

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD403B	#FFFFFF	#000000	##FFFFFF
##AD403B	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D563A

Deuteranopia (green-blind)

#786D38

Tritanopia (blue-blind)

#BE2840

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #ad403b;
/* rgb */ color: rgb(173, 64, 59);
/* oklch */ color: oklch(52.2% 0.144 26.0);

Tailwind

colors: {
  custom: {
    50: '#cc7a71',
    500: '#ad403b',
    950: '#000000',
  },
}

SCSS

$custom: #ad403b;
$custom-light: #cc7a71;
$custom-dark: #000000;

JSON

{
  "hex": "#ad403b",
  "rgb": {
    "r": 173,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 2.632,
    "s": 49.138,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52185,
    "c": 0.14397,
    "h": 26
  },
  "luminance": 0.12867
}

Semantic roles & 50–950 ramp

primary

#AD403B

secondary

#82BFC2

accent

#D3D94F

background

#FDF7F6

surface

#FAEEEC

border

#D3C9C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #AD403B

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

Preview Lab → · Contrast checker → · Palette generator →