#AC403E#AC403E

#AC403E is a mid, vivid red. Relative luminance 0.128; OKLCH L 52.1% C 0.142 H 24.4°. Best body text is #FFFFFF at 5.90:1 contrast (WCAG AA passes).

Color values

HEX	#AC403E
RGB	rgb(172, 64, 62)
HSL	hsl(1, 47%, 46%)
HSV	hsv(1, 64%, 67%)
CMYK	cmyk(0%, 62.8%, 64%, 32.5%)
CIE-LAB	lab(42.44, 44.09, 24.71)
CIE-LCH	lch(42.44, 50.54, 29.27°)
OKLab	oklab(52.08% 0.1296 0.0589)
OKLCH	oklch(52.08% 0.142 24.4)
XYZ	xyz(19.7181, 12.7879, 5.9865)
Luminance	0.1278 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC403E #3EAAAC

analogous

#AC3E73 #AC403E #AC773E

triadic

#AC403E #3EAC40 #403EAC

tetradic

#AC403E #73AC3E #3EAAAC #773EAC

square

#AC403E #73AC3E #3EAAAC #773EAC

split-complementary

#AC403E #3EAC77 #3E73AC

monochromatic

#521F1E #7F2F2E #AC403E #C66361 #D68F8E

Accessibility & contrast

On white

5.90

#AC403E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.56

#AC403E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC403E

5.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC403E	#FFFFFF	#000000	##FFFFFF
##AC403E	1.00	5.90	3.56	5.90
#FFFFFF	5.90	1.00	21.00	1.00
#000000	3.56	21.00	1.00	21.00
##FFFFFF	5.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C563D

Deuteranopia (green-blind)

#776D3B

Tritanopia (blue-blind)

#BC2940

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #ac403e;
/* rgb */ color: rgb(172, 64, 62);
/* oklch */ color: oklch(52.1% 0.142 24.4);

Tailwind

colors: {
  custom: {
    50: '#cb7a73',
    500: '#ac403e',
    950: '#000000',
  },
}

SCSS

$custom: #ac403e;
$custom-light: #cb7a73;
$custom-dark: #000000;

JSON

{
  "hex": "#ac403e",
  "rgb": {
    "r": 172,
    "g": 64,
    "b": 62
  },
  "hsl": {
    "h": 1.091,
    "s": 47.009,
    "l": 45.882
  },
  "oklch": {
    "l": 0.52075,
    "c": 0.14239,
    "h": 24.4
  },
  "luminance": 0.12785
}

Semantic roles & 50–950 ramp

primary

#AC403E

secondary

#85C0C1

accent

#D4D751

background

#FDF7F7

surface

#FAEEED

border

#D3C9C8

text

#140908

muted

#837B7B

Preview Lab

Preview with #AC403E

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

Preview Lab → · Contrast checker → · Palette generator →