#AC3E37#AC3E37

#AC3E37 is a mid, vivid red. Relative luminance 0.125; OKLCH L 51.7% C 0.146 H 27.0°. Best body text is #FFFFFF at 6.00:1 contrast (WCAG AA passes).

Color values

HEX	#AC3E37
RGB	rgb(172, 62, 55)
HSL	hsl(4, 52%, 45%)
HSV	hsv(4, 68%, 67%)
CMYK	cmyk(0%, 64%, 68%, 32.5%)
CIE-LAB	lab(41.99, 44.57, 28.35)
CIE-LCH	lch(41.99, 52.82, 32.46°)
OKLab	oklab(51.7% 0.1298 0.0662)
OKLCH	oklch(51.7% 0.146 27)
XYZ	xyz(19.4274, 12.4944, 5.0024)
Luminance	0.1249 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3E37 #37A5AC

analogous

#AC376A #AC3E37 #AC7937

triadic

#AC3E37 #37AC3E #3E37AC

tetradic

#AC3E37 #6AAC37 #37A5AC #7937AC

square

#AC3E37 #6AAC37 #37A5AC #7937AC

split-complementary

#AC3E37 #37AC79 #376AAC

monochromatic

#4F1D19 #7E2D28 #AC3E37 #C95E57 #D88A85

Accessibility & contrast

On white

6.00

#AC3E37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.50

#AC3E37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3E37

6.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3E37	#FFFFFF	#000000	##FFFFFF
##AC3E37	1.00	6.00	3.50	6.00
#FFFFFF	6.00	1.00	21.00	1.00
#000000	3.50	21.00	1.00	21.00
##FFFFFF	6.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B5436

Deuteranopia (green-blind)

#776C34

Tritanopia (blue-blind)

#BD253D

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #ac3e37;
/* rgb */ color: rgb(172, 62, 55);
/* oklch */ color: oklch(51.7% 0.146 27.0);

Tailwind

colors: {
  custom: {
    50: '#cc796e',
    500: '#ac3e37',
    950: '#000000',
  },
}

SCSS

$custom: #ac3e37;
$custom-light: #cc796e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3e37",
  "rgb": {
    "r": 172,
    "g": 62,
    "b": 55
  },
  "hsl": {
    "h": 3.59,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.517,
    "c": 0.14566,
    "h": 27
  },
  "luminance": 0.12492
}

Semantic roles & 50–950 ramp

primary

#AC3E37

secondary

#7DBEC2

accent

#D2DB4D

background

#FDF7F6

surface

#FAEEEB

border

#D3C9C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #AC3E37

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

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