#3665D2#3665D2

#3665D2 is a mid, vivid blue. Relative luminance 0.147; OKLCH L 53.6% C 0.176 H 263.9°. Best body text is #FFFFFF at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#3665D2
RGB	rgb(54, 101, 210)
HSL	hsl(222, 63%, 52%)
HSV	hsv(222, 74%, 82%)
CMYK	cmyk(74.3%, 51.9%, 0%, 17.6%)
CIE-LAB	lab(45.28, 21.95, -60.89)
CIE-LCH	lch(45.28, 64.72, 289.82°)
OKLab	oklab(53.6% -0.0188 -0.1752)
OKLCH	oklch(53.6% 0.176 263.9)
XYZ	xyz(17.8037, 14.7428, 62.8676)
Luminance	0.1474 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3665D2 #D2A336

analogous

#36B3D2 #3665D2 #5536D2

triadic

#3665D2 #D23665 #65D236

tetradic

#3665D2 #D236B3 #D2A336 #36D255

square

#3665D2 #D236B3 #D2A336 #36D255

split-complementary

#3665D2 #D25536 #B3D236

monochromatic

#1A3574 #254CA6 #3665D2 #688BDD #9AB2E8

Accessibility & contrast

On white

5.32

#3665D2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.95

#3665D2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3665D2

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3665D2	#FFFFFF	#000000	##FFFFFF
##3665D2	1.00	5.32	3.95	5.32
#FFFFFF	5.32	1.00	21.00	1.00
#000000	3.95	21.00	1.00	21.00
##FFFFFF	5.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A73D6

Deuteranopia (green-blind)

#0064D0

Tritanopia (blue-blind)

#007F92

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #3665d2;
/* rgb */ color: rgb(54, 101, 210);
/* oklch */ color: oklch(53.6% 0.176 263.9);

Tailwind

colors: {
  custom: {
    50: '#8290e0',
    500: '#3665d2',
    950: '#000000',
  },
}

SCSS

$custom: #3665d2;
$custom-light: #8290e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3665d2",
  "rgb": {
    "r": 54,
    "g": 101,
    "b": 210
  },
  "hsl": {
    "h": 221.923,
    "s": 63.415,
    "l": 51.765
  },
  "oklch": {
    "l": 0.53599,
    "c": 0.17625,
    "h": 263.9
  },
  "luminance": 0.14745
}

Semantic roles & 50–950 ramp

primary

#3665D2

secondary

#D4C090

accent

#B541E6

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3665D2

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

Preview Lab → · Contrast checker → · Palette generator →