#AC3440#AC3440

#AC3440 is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.7% C 0.155 H 19.1°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#AC3440
RGB	rgb(172, 52, 64)
HSL	hsl(354, 54%, 44%)
HSV	hsv(354, 70%, 67%)
CMYK	cmyk(0%, 69.8%, 62.8%, 32.5%)
CIE-LAB	lab(40.57, 49.37, 21.10)
CIE-LCH	lch(40.57, 53.69, 23.14°)
OKLab	oklab(50.69% 0.1468 0.0509)
OKLCH	oklch(50.69% 0.155 19.1)
XYZ	xyz(19.1686, 11.5995, 6.0791)
Luminance	0.1160 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AC3440 #34ACA0

analogous

#AC347C #AC3440 #AC6434

triadic

#AC3440 #40AC34 #3440AC

tetradic

#AC3440 #7CAC34 #34ACA0 #6434AC

square

#AC3440 #7CAC34 #34ACA0 #6434AC

split-complementary

#AC3440 #34AC64 #347CAC

monochromatic

#4E181D #7D262F #AC3440 #CB525E #D9818A

Accessibility & contrast

On white

6.33

#AC3440 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#AC3440 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AC3440

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AC3440	#FFFFFF	#000000	##FFFFFF
##AC3440	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#545040

Deuteranopia (green-blind)

#72693D

Tritanopia (blue-blind)

#BD1439

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #ac3440;
/* rgb */ color: rgb(172, 52, 64);
/* oklch */ color: oklch(50.7% 0.155 19.1);

Tailwind

colors: {
  custom: {
    50: '#cb7374',
    500: '#ac3440',
    950: '#000000',
  },
}

SCSS

$custom: #ac3440;
$custom-light: #cb7374;
$custom-dark: #000000;

JSON

{
  "hex": "#ac3440",
  "rgb": {
    "r": 172,
    "g": 52,
    "b": 64
  },
  "hsl": {
    "h": 354,
    "s": 53.571,
    "l": 43.922
  },
  "oklch": {
    "l": 0.50686,
    "c": 0.15534,
    "h": 19.1
  },
  "luminance": 0.11597
}

Semantic roles & 50–950 ramp

primary

#AC3440

secondary

#79C2BB

accent

#DDCE4B

background

#FDF7F7

surface

#FAEDED

border

#D3C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #AC3440

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

Preview Lab → · Contrast checker → · Palette generator →