#AC3F27#AC3F27

#AC3F27 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.6% C 0.148 H 34.0°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#AC3F27
RGB	rgb(172, 63, 39)
HSL	hsl(11, 63%, 41%)
HSV	hsv(11, 77%, 67%)
CMYK	cmyk(0%, 63.4%, 77.3%, 32.5%)
CIE-LAB	lab(41.96, 43.33, 37.46)
CIE-LCH	lch(41.96, 57.28, 40.84°)
OKLab	oklab(51.61% 0.1227 0.0827)
OKLCH	oklch(51.61% 0.148 34)
XYZ	xyz(19.1591, 12.4749, 3.3181)
Luminance	0.1247 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3F27 #2794AC

analogous

#AC2752 #AC3F27 #AC8227

triadic

#AC3F27 #27AC3F #3F27AC

tetradic

#AC3F27 #52AC27 #2794AC #8227AC

square

#AC3F27 #52AC27 #2794AC #8227AC

split-complementary

#AC3F27 #27AC82 #2752AC

monochromatic

#481A10 #7A2D1C #AC3F27 #D3583D #DE836F

Accessibility & contrast

On white

6.01

#AC3F27 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.49

#AC3F27 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3F27

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3F27	#FFFFFF	#000000	##FFFFFF
##AC3F27	1.00	6.01	3.49	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.49	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5424

Deuteranopia (green-blind)

#796C23

Tritanopia (blue-blind)

#BD233A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #ac3f27;
/* rgb */ color: rgb(172, 63, 39);
/* oklch */ color: oklch(51.6% 0.148 34.0);

Tailwind

colors: {
  custom: {
    50: '#cc7963',
    500: '#ac3f27',
    950: '#000000',
  },
}

SCSS

$custom: #ac3f27;
$custom-light: #cc7963;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3f27",
  "rgb": {
    "r": 172,
    "g": 63,
    "b": 39
  },
  "hsl": {
    "h": 10.827,
    "s": 63.033,
    "l": 41.373
  },
  "oklch": {
    "l": 0.51614,
    "c": 0.14797,
    "h": 34
  },
  "luminance": 0.12472
}

Semantic roles & 50–950 ramp

primary

#AC3F27

secondary

#6AB5C5

accent

#C8E642

background

#FDF7F5

surface

#FBEEEA

border

#D4C9C6

text

#150905

muted

#837B79

Preview Lab

Preview with #AC3F27

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

Preview Lab → · Contrast checker → · Palette generator →