#AC3A37#AC3A37

#AC3A37 is a mid, vivid red. Relative luminance 0.121; OKLCH L 51.2% C 0.150 H 25.4°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#AC3A37
RGB	rgb(172, 58, 55)
HSL	hsl(2, 52%, 45%)
HSV	hsv(2, 68%, 67%)
CMYK	cmyk(0%, 66.3%, 68%, 32.5%)
CIE-LAB	lab(41.34, 46.33, 27.56)
CIE-LCH	lch(41.34, 53.91, 30.74°)
OKLab	oklab(51.21% 0.1353 0.0644)
OKLCH	oklch(51.21% 0.15 25.4)
XYZ	xyz(19.2179, 12.0753, 4.9325)
Luminance	0.1207 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3A37 #37A9AC

analogous

#AC376F #AC3A37 #AC7437

triadic

#AC3A37 #37AC3A #3A37AC

tetradic

#AC3A37 #6FAC37 #37A9AC #7437AC

square

#AC3A37 #6FAC37 #37A9AC #7437AC

split-complementary

#AC3A37 #37AC74 #376FAC

monochromatic

#4F1B19 #7E2A28 #AC3A37 #C95A57 #D88785

Accessibility & contrast

On white

6.15

#AC3A37 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.41

#AC3A37 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3A37

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3A37	#FFFFFF	#000000	##FFFFFF
##AC3A37	1.00	6.15	3.41	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.41	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#595236

Deuteranopia (green-blind)

#756B34

Tritanopia (blue-blind)

#BD1E3A

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #ac3a37;
/* rgb */ color: rgb(172, 58, 55);
/* oklch */ color: oklch(51.2% 0.150 25.4);

Tailwind

colors: {
  custom: {
    50: '#cc766e',
    500: '#ac3a37',
    950: '#000000',
  },
}

SCSS

$custom: #ac3a37;
$custom-light: #cc766e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3a37",
  "rgb": {
    "r": 172,
    "g": 58,
    "b": 55
  },
  "hsl": {
    "h": 1.538,
    "s": 51.542,
    "l": 44.51
  },
  "oklch": {
    "l": 0.51208,
    "c": 0.14986,
    "h": 25.4
  },
  "luminance": 0.12073
}

Semantic roles & 50–950 ramp

primary

#AC3A37

secondary

#7DC0C2

accent

#D7DB4D

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #AC3A37

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

Preview Lab → · Contrast checker → · Palette generator →