#AC3438#AC3438

#AC3438 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.5% C 0.156 H 22.9°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#AC3438
RGB	rgb(172, 52, 56)
HSL	hsl(358, 54%, 44%)
HSV	hsv(358, 70%, 67%)
CMYK	cmyk(0%, 69.8%, 67.4%, 32.5%)
CIE-LAB	lab(40.43, 48.88, 25.85)
CIE-LCH	lch(40.43, 55.29, 27.87°)
OKLab	oklab(50.54% 0.1436 0.0607)
OKLCH	oklch(50.54% 0.156 22.9)
XYZ	xyz(18.9571, 11.5149, 4.9650)
Luminance	0.1151 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3438 #34ACA8

analogous

#AC3474 #AC3438 #AC6C34

triadic

#AC3438 #38AC34 #3438AC

tetradic

#AC3438 #74AC34 #34ACA8 #6C34AC

square

#AC3438 #74AC34 #34ACA8 #6C34AC

split-complementary

#AC3438 #34AC6C #3474AC

monochromatic

#4E1819 #7D2629 #AC3438 #CB5256 #D98184

Accessibility & contrast

On white

6.36

#AC3438 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#AC3438 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3438

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3438	#FFFFFF	#000000	##FFFFFF
##AC3438	1.00	6.36	3.30	6.36
#FFFFFF	6.36	1.00	21.00	1.00
#000000	3.30	21.00	1.00	21.00
##FFFFFF	6.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F37

Deuteranopia (green-blind)

#736934

Tritanopia (blue-blind)

#BD1137

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ac3438;
/* rgb */ color: rgb(172, 52, 56);
/* oklch */ color: oklch(50.5% 0.156 22.9);

Tailwind

colors: {
  custom: {
    50: '#cc736e',
    500: '#ac3438',
    950: '#000000',
  },
}

SCSS

$custom: #ac3438;
$custom-light: #cc736e;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3438",
  "rgb": {
    "r": 172,
    "g": 52,
    "b": 56
  },
  "hsl": {
    "h": 358,
    "s": 53.571,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50539,
    "c": 0.1559,
    "h": 22.9
  },
  "luminance": 0.11512
}

Semantic roles & 50–950 ramp

primary

#AC3438

secondary

#79C2C0

accent

#DDD84B

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #AC3438

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

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