#AD3733#AD3733

#AD3733 is a mid, vivid red. Relative luminance 0.119; OKLCH L 51.0% C 0.155 H 26.2°. Best body text is #FFFFFF at 6.23:1 contrast (WCAG AA passes).

Color values

HEX	#AD3733
RGB	rgb(173, 55, 51)
HSL	hsl(2, 54%, 44%)
HSV	hsv(2, 71%, 68%)
CMYK	cmyk(0%, 68.2%, 70.5%, 32.2%)
CIE-LAB	lab(40.99, 47.73, 29.58)
CIE-LCH	lch(40.99, 56.15, 31.79°)
OKLab	oklab(50.96% 0.1388 0.0682)
OKLCH	oklch(50.96% 0.155 26.2)
XYZ	xyz(19.1994, 11.8584, 4.4093)
Luminance	0.1186 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD3733 #33A9AD

analogous

#AD336C #AD3733 #AD7433

triadic

#AD3733 #33AD37 #3733AD

tetradic

#AD3733 #6CAD33 #33A9AD #7433AD

square

#AD3733 #6CAD33 #33A9AD #7433AD

split-complementary

#AD3733 #33AD74 #336CAD

monochromatic

#4E1917 #7E2825 #AD3733 #CC5551 #DA8481

Accessibility & contrast

On white

6.23

#AD3733 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.37

#AD3733 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD3733

6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD3733	#FFFFFF	#000000	##FFFFFF
##AD3733	1.00	6.23	3.37	6.23
#FFFFFF	6.23	1.00	21.00	1.00
#000000	3.37	21.00	1.00	21.00
##FFFFFF	6.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#585032

Deuteranopia (green-blind)

#756A2F

Tritanopia (blue-blind)

#BE1537

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #ad3733;
/* rgb */ color: rgb(173, 55, 51);
/* oklch */ color: oklch(51.0% 0.155 26.2);

Tailwind

colors: {
  custom: {
    50: '#cd756b',
    500: '#ad3733',
    950: '#000000',
  },
}

SCSS

$custom: #ad3733;
$custom-light: #cd756b;
$custom-dark: #000000;

JSON

{
  "hex": "#ad3733",
  "rgb": {
    "r": 173,
    "g": 55,
    "b": 51
  },
  "hsl": {
    "h": 1.967,
    "s": 54.464,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50964,
    "c": 0.1546,
    "h": 26.2
  },
  "luminance": 0.11856
}

Semantic roles & 50–950 ramp

primary

#AD3733

secondary

#79C0C3

accent

#D9DE4A

background

#FDF7F6

surface

#FBEDEB

border

#D4C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AD3733

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

Preview Lab → · Contrast checker → · Palette generator →