#AC3439#AC3439

#AC3439 is a mid, vivid red. Relative luminance 0.115; OKLCH L 50.6% C 0.156 H 22.5°. Best body text is #FFFFFF at 6.36:1 contrast (WCAG AA passes).

Color values

HEX	#AC3439
RGB	rgb(172, 52, 57)
HSL	hsl(358, 54%, 44%)
HSV	hsv(358, 70%, 67%)
CMYK	cmyk(0%, 69.8%, 66.9%, 32.5%)
CIE-LAB	lab(40.45, 48.94, 25.26)
CIE-LCH	lch(40.45, 55.07, 27.30°)
OKLab	oklab(50.56% 0.144 0.0595)
OKLCH	oklch(50.56% 0.156 22.5)
XYZ	xyz(18.9818, 11.5248, 5.0951)
Luminance	0.1152 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3439 #34ACA7

analogous

#AC3475 #AC3439 #AC6B34

triadic

#AC3439 #39AC34 #3439AC

tetradic

#AC3439 #75AC34 #34ACA7 #6B34AC

square

#AC3439 #75AC34 #34ACA7 #6B34AC

split-complementary

#AC3439 #34AC6B #3475AC

monochromatic

#4E181A #7D2629 #AC3439 #CB5257 #D98185

Accessibility & contrast

On white

6.36

#AC3439 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.30

#AC3439 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3439

6.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3439	#FFFFFF	#000000	##FFFFFF
##AC3439	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)

#554F38

Deuteranopia (green-blind)

#736935

Tritanopia (blue-blind)

#BD1137

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #ac3439;
/* rgb */ color: rgb(172, 52, 57);
/* oklch */ color: oklch(50.6% 0.156 22.5);

Tailwind

colors: {
  custom: {
    50: '#cc736f',
    500: '#ac3439',
    950: '#000000',
  },
}

SCSS

$custom: #ac3439;
$custom-light: #cc736f;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3439",
  "rgb": {
    "r": 172,
    "g": 52,
    "b": 57
  },
  "hsl": {
    "h": 357.5,
    "s": 53.571,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50556,
    "c": 0.15581,
    "h": 22.5
  },
  "luminance": 0.11522
}

Semantic roles & 50–950 ramp

primary

#AC3439

secondary

#79C2BF

accent

#DDD74B

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #AC3439

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

Preview Lab → · Contrast checker → · Palette generator →