#AD381B#AD381B

#AD381B is a mid, vivid red. Relative luminance 0.118; OKLCH L 50.8% C 0.158 H 34.7°. Best body text is #FFFFFF at 6.25:1 contrast (WCAG AA passes).

Color values

HEX	#AD381B
RGB	rgb(173, 56, 27)
HSL	hsl(12, 73%, 39%)
HSV	hsv(12, 84%, 68%)
CMYK	cmyk(0%, 67.6%, 84.4%, 32.2%)
CIE-LAB	lab(40.89, 46.37, 42.63)
CIE-LCH	lch(40.89, 62.98, 42.60°)
OKLab	oklab(50.81% 0.1298 0.09)
OKLCH	oklch(50.81% 0.158 34.7)
XYZ	xyz(18.8478, 11.7945, 2.3208)
Luminance	0.1179 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD381B #1B90AD

analogous

#AD1B47 #AD381B #AD811B

triadic

#AD381B #1BAD38 #381BAD

tetradic

#AD381B #47AD1B #1B90AD #811BAD

square

#AD381B #47AD1B #1B90AD #811BAD

split-complementary

#AD381B #1BAD81 #1B47AD

monochromatic

#43160A #782713 #AD381B #DD4C28 #E6785D

Accessibility & contrast

On white

6.25

#AD381B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.36

#AD381B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD381B

6.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD381B	#FFFFFF	#000000	##FFFFFF
##AD381B	1.00	6.25	3.36	6.25
#FFFFFF	6.25	1.00	21.00	1.00
#000000	3.36	21.00	1.00	21.00
##FFFFFF	6.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A5016

Deuteranopia (green-blind)

#776A15

Tritanopia (blue-blind)

#BF1133

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ad381b;
/* rgb */ color: rgb(173, 56, 27);
/* oklch */ color: oklch(50.8% 0.158 34.7);

Tailwind

colors: {
  custom: {
    50: '#ce755a',
    500: '#ad381b',
    950: '#000000',
  },
}

SCSS

$custom: #ad381b;
$custom-light: #ce755a;
$custom-dark: #000000;

JSON

{
  "hex": "#ad381b",
  "rgb": {
    "r": 173,
    "g": 56,
    "b": 27
  },
  "hsl": {
    "h": 11.918,
    "s": 73,
    "l": 39.216
  },
  "oklch": {
    "l": 0.50806,
    "c": 0.15797,
    "h": 34.7
  },
  "luminance": 0.11792
}

Semantic roles & 50–950 ramp

primary

#AD381B

secondary

#5AB4CA

accent

#CBF038

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AD381B

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

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