#AD421F#AD421F

#AD421F is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.1% C 0.148 H 37.7°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#AD421F
RGB	rgb(173, 66, 31)
HSL	hsl(15, 70%, 40%)
HSV	hsv(15, 82%, 68%)
CMYK	cmyk(0%, 61.8%, 82.1%, 32.2%)
CIE-LAB	lab(42.59, 42.03, 42.26)
CIE-LCH	lch(42.59, 59.60, 45.16°)
OKLab	oklab(52.1% 0.1171 0.0907)
OKLCH	oklch(52.1% 0.148 37.7)
XYZ	xyz(19.4313, 12.8823, 2.7594)
Luminance	0.1288 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AD421F #1F8AAD

analogous

#AD1F43 #AD421F #AD891F

triadic

#AD421F #1FAD42 #421FAD

tetradic

#AD421F #43AD1F #1F8AAD #891FAD

square

#AD421F #43AD1F #1F8AAD #891FAD

split-complementary

#AD421F #1FAD89 #1F43AD

monochromatic

#451A0C #792E16 #AD421F #DA592F #E38363

Accessibility & contrast

On white

5.87

#AD421F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#AD421F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AD421F

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AD421F	#FFFFFF	#000000	##FFFFFF
##AD421F	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60561A

Deuteranopia (green-blind)

#7B6D1B

Tritanopia (blue-blind)

#BF273B

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #ad421f;
/* rgb */ color: rgb(173, 66, 31);
/* oklch */ color: oklch(52.1% 0.148 37.7);

Tailwind

colors: {
  custom: {
    50: '#ce7b5e',
    500: '#ad421f',
    950: '#000000',
  },
}

SCSS

$custom: #ad421f;
$custom-light: #ce7b5e;
$custom-dark: #000000;

JSON

{
  "hex": "#ad421f",
  "rgb": {
    "r": 173,
    "g": 66,
    "b": 31
  },
  "hsl": {
    "h": 14.789,
    "s": 69.608,
    "l": 40
  },
  "oklch": {
    "l": 0.52095,
    "c": 0.1481,
    "h": 37.7
  },
  "luminance": 0.1288
}

Semantic roles & 50–950 ramp

primary

#AD421F

secondary

#60AEC8

accent

#C1EC3B

background

#FDF7F5

surface

#FBEEE9

border

#D4C9C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AD421F

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

Preview Lab → · Contrast checker → · Palette generator →