#3668D7#3668D7

#3668D7 is a mid, vivid blue. Relative luminance 0.156; OKLCH L 54.6% C 0.179 H 263.4°. Best body text is #FFFFFF at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#3668D7
RGB	rgb(54, 104, 215)
HSL	hsl(221, 67%, 53%)
HSV	hsv(221, 75%, 84%)
CMYK	cmyk(74.9%, 51.6%, 0%, 15.7%)
CIE-LAB	lab(46.43, 21.88, -61.88)
CIE-LCH	lch(46.43, 65.63, 289.47°)
OKLab	oklab(54.58% -0.0206 -0.1781)
OKLCH	oklch(54.58% 0.179 263.4)
XYZ	xyz(18.7330, 15.5891, 66.2985)
Luminance	0.1559 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3668D7 #D7A536

analogous

#36B9D7 #3668D7 #5436D7

triadic

#3668D7 #D73668 #68D736

tetradic

#3668D7 #D736B9 #D7A536 #36D754

square

#3668D7 #D736B9 #D7A536 #36D754

split-complementary

#3668D7 #D75436 #B9D736

monochromatic

#18377A #224EAD #3668D7 #698EE1 #9CB5EB

Accessibility & contrast

On white

5.10

#3668D7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.12

#3668D7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3668D7

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3668D7	#FFFFFF	#000000	##FFFFFF
##3668D7	1.00	5.10	4.12	5.10
#FFFFFF	5.10	1.00	21.00	1.00
#000000	4.12	21.00	1.00	21.00
##FFFFFF	5.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D76DB

Deuteranopia (green-blind)

#0067D5

Tritanopia (blue-blind)

#008395

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #3668d7;
/* rgb */ color: rgb(54, 104, 215);
/* oklch */ color: oklch(54.6% 0.179 263.4);

Tailwind

colors: {
  custom: {
    50: '#8392e4',
    500: '#3668d7',
    950: '#000000',
  },
}

SCSS

$custom: #3668d7;
$custom-light: #8392e4;
$custom-dark: #000000;

JSON

{
  "hex": "#3668d7",
  "rgb": {
    "r": 54,
    "g": 104,
    "b": 215
  },
  "hsl": {
    "h": 221.366,
    "s": 66.805,
    "l": 52.745
  },
  "oklch": {
    "l": 0.54582,
    "c": 0.1793,
    "h": 263.4
  },
  "luminance": 0.15591
}

Semantic roles & 50–950 ramp

primary

#3668D7

secondary

#D7C292

accent

#B43EEA

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0C0C16

muted

#7D7D84

Preview Lab

Preview with #3668D7

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

Preview Lab → · Contrast checker → · Palette generator →