#3664D2#3664D2

#3664D2 is a mid, vivid blue. Relative luminance 0.146; OKLCH L 53.4% C 0.177 H 264.2°. Best body text is #FFFFFF at 5.37:1 contrast (WCAG AA passes).

Color values

HEX	#3664D2
RGB	rgb(54, 100, 210)
HSL	hsl(222, 63%, 52%)
HSV	hsv(222, 74%, 82%)
CMYK	cmyk(74.3%, 52.4%, 0%, 17.6%)
CIE-LAB	lab(45.01, 22.59, -61.32)
CIE-LCH	lch(45.01, 65.35, 290.22°)
OKLab	oklab(53.4% -0.018 -0.1765)
OKLCH	oklch(53.4% 0.177 264.2)
XYZ	xyz(17.7072, 14.5498, 62.8354)
Luminance	0.1455 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3664D2 #D2A436

analogous

#36B2D2 #3664D2 #5636D2

triadic

#3664D2 #D23664 #64D236

tetradic

#3664D2 #D236B2 #D2A436 #36D256

square

#3664D2 #D236B2 #D2A436 #36D256

split-complementary

#3664D2 #D25636 #B2D236

monochromatic

#1A3474 #254BA6 #3664D2 #688BDD #9AB1E8

Accessibility & contrast

On white

5.37

#3664D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.91

#3664D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3664D2

5.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3664D2	#FFFFFF	#000000	##FFFFFF
##3664D2	1.00	5.37	3.91	5.37
#FFFFFF	5.37	1.00	21.00	1.00
#000000	3.91	21.00	1.00	21.00
##FFFFFF	5.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1572D6

Deuteranopia (green-blind)

#0064D0

Tritanopia (blue-blind)

#007F91

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #3664d2;
/* rgb */ color: rgb(54, 100, 210);
/* oklch */ color: oklch(53.4% 0.177 264.2);

Tailwind

colors: {
  custom: {
    50: '#828fe1',
    500: '#3664d2',
    950: '#000000',
  },
}

SCSS

$custom: #3664d2;
$custom-light: #828fe1;
$custom-dark: #000000;

JSON

{
  "hex": "#3664d2",
  "rgb": {
    "r": 54,
    "g": 100,
    "b": 210
  },
  "hsl": {
    "h": 222.308,
    "s": 63.415,
    "l": 51.765
  },
  "oklch": {
    "l": 0.53395,
    "c": 0.17746,
    "h": 264.2
  },
  "luminance": 0.14552
}

Semantic roles & 50–950 ramp

primary

#3664D2

secondary

#D4C090

accent

#B641E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3664D2

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

Preview Lab → · Contrast checker → · Palette generator →