#AC3621#AC3621

#AC3621 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.5% C 0.158 H 32.4°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#AC3621
RGB	rgb(172, 54, 33)
HSL	hsl(9, 68%, 40%)
HSV	hsv(9, 81%, 67%)
CMYK	cmyk(0%, 68.6%, 80.8%, 32.5%)
CIE-LAB	lab(40.45, 47.04, 39.12)
CIE-LCH	lch(40.45, 61.18, 39.75°)
OKLab	oklab(50.46% 0.133 0.0845)
OKLCH	oklch(50.46% 0.158 32.4)
XYZ	xyz(18.6091, 11.5216, 2.6826)
Luminance	0.1152 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3621 #2197AC

analogous

#AC2151 #AC3621 #AC7C21

triadic

#AC3621 #21AC36 #3621AC

tetradic

#AC3621 #51AC21 #2197AC #7C21AC

square

#AC3621 #51AC21 #2197AC #7C21AC

split-complementary

#AC3621 #21AC7C #2151AC

monochromatic

#45160D #792617 #AC3621 #D84B32 #E27866

Accessibility & contrast

On white

6.36

#AC3621 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#AC3621 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3621

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3621	#FFFFFF	#000000	##FFFFFF
##AC3621	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#584F1D

Deuteranopia (green-blind)

#76691C

Tritanopia (blue-blind)

#BE0E32

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ac3621;
/* rgb */ color: rgb(172, 54, 33);
/* oklch */ color: oklch(50.5% 0.158 32.4);

Tailwind

colors: {
  custom: {
    50: '#cd745e',
    500: '#ac3621',
    950: '#000000',
  },
}

SCSS

$custom: #ac3621;
$custom-light: #cd745e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3621",
  "rgb": {
    "r": 172,
    "g": 54,
    "b": 33
  },
  "hsl": {
    "h": 9.065,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.50455,
    "c": 0.15761,
    "h": 32.4
  },
  "luminance": 0.11519
}

Semantic roles & 50–950 ramp

primary

#AC3621

secondary

#62B8C7

accent

#D0EB3D

background

#FDF7F5

surface

#FBEDE9

border

#D4C8C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AC3621

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

Preview Lab → · Contrast checker → · Palette generator →