#AC3D37#AC3D37

#AC3D37 is a mid, vivid red. Relative luminance 0.124; OKLCH L 51.6% C 0.147 H 26.6°. Best body text is #FFFFFF at 6.04:1 contrast (WCAG AA passes).

Color values

HEX	#AC3D37
RGB	rgb(172, 61, 55)
HSL	hsl(3, 52%, 45%)
HSV	hsv(3, 68%, 67%)
CMYK	cmyk(0%, 64.5%, 68%, 32.5%)
CIE-LAB	lab(41.82, 45.02, 28.15)
CIE-LCH	lch(41.82, 53.09, 32.02°)
OKLab	oklab(51.58% 0.1312 0.0657)
OKLCH	oklch(51.58% 0.147 26.6)
XYZ	xyz(19.3736, 12.3867, 4.9844)
Luminance	0.1238 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3D37 #37A6AC

analogous

#AC376C #AC3D37 #AC7837

triadic

#AC3D37 #37AC3D #3D37AC

tetradic

#AC3D37 #6CAC37 #37A6AC #7837AC

square

#AC3D37 #6CAC37 #37A6AC #7837AC

split-complementary

#AC3D37 #37AC78 #376CAC

monochromatic

#4F1C19 #7E2D28 #AC3D37 #C95D57 #D88A85

Accessibility & contrast

On white

6.04

#AC3D37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.48

#AC3D37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3D37

6.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3D37	#FFFFFF	#000000	##FFFFFF
##AC3D37	1.00	6.04	3.48	6.04
#FFFFFF	6.04	1.00	21.00	1.00
#000000	3.48	21.00	1.00	21.00
##FFFFFF	6.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5436

Deuteranopia (green-blind)

#776C34

Tritanopia (blue-blind)

#BD233C

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #ac3d37;
/* rgb */ color: rgb(172, 61, 55);
/* oklch */ color: oklch(51.6% 0.147 26.6);

Tailwind

colors: {
  custom: {
    50: '#cc786e',
    500: '#ac3d37',
    950: '#000000',
  },
}

SCSS

$custom: #ac3d37;
$custom-light: #cc786e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3d37",
  "rgb": {
    "r": 172,
    "g": 61,
    "b": 55
  },
  "hsl": {
    "h": 3.077,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51575,
    "c": 0.14671,
    "h": 26.6
  },
  "luminance": 0.12384
}

Semantic roles & 50–950 ramp

primary

#AC3D37

secondary

#7DBEC2

accent

#D4DB4D

background

#FDF7F6

surface

#FAEEEB

border

#D3C9C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #AC3D37

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

Preview Lab → · Contrast checker → · Palette generator →