#3644AC#3644AC

#3644AC is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.1% C 0.166 H 271.9°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).

Color values

HEX	#3644AC
RGB	rgb(54, 68, 172)
HSL	hsl(233, 52%, 44%)
HSV	hsv(233, 69%, 67%)
CMYK	cmyk(68.6%, 60.5%, 0%, 32.5%)
CIE-LAB	lab(33.77, 29.39, -57.39)
CIE-LCH	lch(33.77, 64.48, 297.12°)
OKLab	oklab(44.06% 0.0054 -0.1655)
OKLCH	oklch(44.06% 0.166 271.9)
XYZ	xyz(11.0323, 7.8960, 39.9644)
Luminance	0.0790 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3644AC #AC9E36

analogous

#367FAC #3644AC #6336AC

triadic

#3644AC #AC3644 #44AC36

tetradic

#3644AC #AC367F #AC9E36 #36AC63

square

#3644AC #AC367F #AC9E36 #36AC63

split-complementary

#3644AC #AC6336 #7FAC36

monochromatic

#191F4F #27327D #3644AC #5563CA #848ED8

Accessibility & contrast

On white

8.14

#3644AC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#3644AC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3644AC

8.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3644AC	#FFFFFF	#000000	##FFFFFF
##3644AC	1.00	8.14	2.58	8.14
#FFFFFF	8.14	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055AF

Deuteranopia (green-blind)

#004AAA

Tritanopia (blue-blind)

#005E71

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3644ac;
/* rgb */ color: rgb(54, 68, 172);
/* oklch */ color: oklch(44.1% 0.166 271.9);

Tailwind

colors: {
  custom: {
    50: '#7c77c6',
    500: '#3644ac',
    950: '#000000',
  },
}

SCSS

$custom: #3644ac;
$custom-light: #7c77c6;
$custom-dark: #000000;

JSON

{
  "hex": "#3644ac",
  "rgb": {
    "r": 54,
    "g": 68,
    "b": 172
  },
  "hsl": {
    "h": 232.881,
    "s": 52.212,
    "l": 44.314
  },
  "oklch": {
    "l": 0.44058,
    "c": 0.16554,
    "h": 271.9
  },
  "luminance": 0.07897
}

Semantic roles & 50–950 ramp

primary

#3644AC

secondary

#C2BA7C

accent

#CB4CDC

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3644AC

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

Preview Lab → · Contrast checker → · Palette generator →