#AC3F28#AC3F28

#AC3F28 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.6% C 0.148 H 33.6°. Best body text is #FFFFFF at 6.01:1 contrast (WCAG AA passes).

Color values

HEX	#AC3F28
RGB	rgb(172, 63, 40)
HSL	hsl(10, 62%, 42%)
HSV	hsv(10, 77%, 67%)
CMYK	cmyk(0%, 63.4%, 76.7%, 32.5%)
CIE-LAB	lab(41.97, 43.38, 36.93)
CIE-LCH	lch(41.97, 56.97, 40.41°)
OKLab	oklab(51.63% 0.123 0.0818)
OKLCH	oklch(51.63% 0.148 33.6)
XYZ	xyz(19.1758, 12.4816, 3.4065)
Luminance	0.1248 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3F28 #2895AC

analogous

#AC2853 #AC3F28 #AC8128

triadic

#AC3F28 #28AC3F #3F28AC

tetradic

#AC3F28 #53AC28 #2895AC #8128AC

square

#AC3F28 #53AC28 #2895AC #8128AC

split-complementary

#AC3F28 #28AC81 #2853AC

monochromatic

#491B11 #7A2D1C #AC3F28 #D2593F #DE8471

Accessibility & contrast

On white

6.01

#AC3F28 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#AC3F28 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3F28

6.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3F28	#FFFFFF	#000000	##FFFFFF
##AC3F28	1.00	6.01	3.50	6.01
#FFFFFF	6.01	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E5425

Deuteranopia (green-blind)

#786C24

Tritanopia (blue-blind)

#BD233A

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #ac3f28;
/* rgb */ color: rgb(172, 63, 40);
/* oklch */ color: oklch(51.6% 0.148 33.6);

Tailwind

colors: {
  custom: {
    50: '#cc7963',
    500: '#ac3f28',
    950: '#000000',
  },
}

SCSS

$custom: #ac3f28;
$custom-light: #cc7963;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3f28",
  "rgb": {
    "r": 172,
    "g": 63,
    "b": 40
  },
  "hsl": {
    "h": 10.455,
    "s": 62.264,
    "l": 41.569
  },
  "oklch": {
    "l": 0.51625,
    "c": 0.14774,
    "h": 33.6
  },
  "luminance": 0.12479
}

Semantic roles & 50–950 ramp

primary

#AC3F28

secondary

#6BB5C5

accent

#C9E542

background

#FDF7F6

surface

#FBEEEB

border

#D4C9C6

text

#150905

muted

#837B7A

Preview Lab

Preview with #AC3F28

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

Preview Lab → · Contrast checker → · Palette generator →