#AC3F21#AC3F21

#AC3F21 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.6% C 0.149 H 35.9°. Best body text is #FFFFFF at 6.02:1 contrast (WCAG AA passes).

Color values

HEX	#AC3F21
RGB	rgb(172, 63, 33)
HSL	hsl(13, 68%, 40%)
HSV	hsv(13, 81%, 67%)
CMYK	cmyk(0%, 63.4%, 80.8%, 32.5%)
CIE-LAB	lab(41.90, 43.11, 40.55)
CIE-LCH	lch(41.90, 59.19, 43.25°)
OKLab	oklab(51.55% 0.1209 0.0877)
OKLCH	oklch(51.55% 0.149 35.9)
XYZ	xyz(19.0674, 12.4382, 2.8353)
Luminance	0.1244 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3F21 #218EAC

analogous

#AC2148 #AC3F21 #AC8521

triadic

#AC3F21 #21AC3F #3F21AC

tetradic

#AC3F21 #48AC21 #218EAC #8521AC

square

#AC3F21 #48AC21 #218EAC #8521AC

split-complementary

#AC3F21 #21AC85 #2148AC

monochromatic

#45190D #792C17 #AC3F21 #D85632 #E28166

Accessibility & contrast

On white

6.02

#AC3F21 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#AC3F21 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3F21

6.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3F21	#FFFFFF	#000000	##FFFFFF
##AC3F21	1.00	6.02	3.49	6.02
#FFFFFF	6.02	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E541D

Deuteranopia (green-blind)

#796C1D

Tritanopia (blue-blind)

#BD2239

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #ac3f21;
/* rgb */ color: rgb(172, 63, 33);
/* oklch */ color: oklch(51.6% 0.149 35.9);

Tailwind

colors: {
  custom: {
    50: '#cd795f',
    500: '#ac3f21',
    950: '#000000',
  },
}

SCSS

$custom: #ac3f21;
$custom-light: #cd795f;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3f21",
  "rgb": {
    "r": 172,
    "g": 63,
    "b": 33
  },
  "hsl": {
    "h": 12.95,
    "s": 67.805,
    "l": 40.196
  },
  "oklch": {
    "l": 0.51553,
    "c": 0.14933,
    "h": 35.9
  },
  "luminance": 0.12435
}

Semantic roles & 50–950 ramp

primary

#AC3F21

secondary

#62B1C7

accent

#C5EB3D

background

#FDF7F5

surface

#FBEEE9

border

#D4C9C5

text

#150904

muted

#837B79

Preview Lab

Preview with #AC3F21

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

Preview Lab → · Contrast checker → · Palette generator →