#AC4739#AC4739

#AC4739 is a mid, vivid red. Relative luminance 0.136; OKLCH L 52.9% C 0.136 H 30.2°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#AC4739
RGB	rgb(172, 71, 57)
HSL	hsl(7, 50%, 45%)
HSV	hsv(7, 67%, 67%)
CMYK	cmyk(0%, 58.7%, 66.9%, 32.5%)
CIE-LAB	lab(43.62, 40.46, 29.14)
CIE-LCH	lch(43.62, 49.86, 35.76°)
OKLab	oklab(52.94% 0.1173 0.0682)
OKLCH	oklch(52.94% 0.136 30.2)
XYZ	xyz(20.0069, 13.5751, 5.4368)
Luminance	0.1357 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC4739 #399EAC

analogous

#AC3965 #AC4739 #AC8039

triadic

#AC4739 #39AC47 #4739AC

tetradic

#AC4739 #65AC39 #399EAC #8039AC

square

#AC4739 #65AC39 #399EAC #8039AC

split-complementary

#AC4739 #39AC80 #3965AC

monochromatic

#50211B #7E342A #AC4739 #C8675A #D89288

Accessibility & contrast

On white

5.65

#AC4739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.71

#AC4739 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC4739

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC4739	#FFFFFF	#000000	##FFFFFF
##AC4739	1.00	5.65	3.71	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.71	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#615937

Deuteranopia (green-blind)

#7B6F36

Tritanopia (blue-blind)

#BC3244

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #ac4739;
/* rgb */ color: rgb(172, 71, 57);
/* oklch */ color: oklch(52.9% 0.136 30.2);

Tailwind

colors: {
  custom: {
    50: '#cb7e70',
    500: '#ac4739',
    950: '#000000',
  },
}

SCSS

$custom: #ac4739;
$custom-light: #cb7e70;
$custom-dark: #000000;

JSON

{
  "hex": "#ac4739",
  "rgb": {
    "r": 172,
    "g": 71,
    "b": 57
  },
  "hsl": {
    "h": 7.304,
    "s": 50.218,
    "l": 44.902
  },
  "oklch": {
    "l": 0.52935,
    "c": 0.13567,
    "h": 30.2
  },
  "luminance": 0.13573
}

Semantic roles & 50–950 ramp

primary

#AC4739

secondary

#7FBAC2

accent

#C9DA4E

background

#FDF7F6

surface

#FAEEEC

border

#D3C9C7

text

#140A07

muted

#837C7A

Preview Lab

Preview with #AC4739

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

Preview Lab → · Contrast checker → · Palette generator →