#3668DA#3668DA

#3668DA is a mid, vivid blue. Relative luminance 0.157; OKLCH L 54.8% C 0.183 H 263.6°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#3668DA
RGB	rgb(54, 104, 218)
HSL	hsl(222, 69%, 53%)
HSV	hsv(222, 75%, 85%)
CMYK	cmyk(75.2%, 52.3%, 0%, 14.5%)
CIE-LAB	lab(46.64, 22.99, -63.25)
CIE-LCH	lch(46.64, 67.30, 289.97°)
OKLab	oklab(54.81% -0.0203 -0.1821)
OKLCH	oklch(54.81% 0.183 263.6)
XYZ	xyz(19.1220, 15.7447, 68.3473)
Luminance	0.1575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3668DA #DAA836

analogous

#36BADA #3668DA #5636DA

triadic

#3668DA #DA3668 #68DA36

tetradic

#3668DA #DA36BA #DAA836 #36DA56

square

#3668DA #DA36BA #DAA836 #36DA56

split-complementary

#3668DA #DA5636 #BADA36

monochromatic

#17377E #214DB2 #3668DA #6A8FE4 #9DB6ED

Accessibility & contrast

On white

5.06

#3668DA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#3668DA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3668DA

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3668DA	#FFFFFF	#000000	##FFFFFF
##3668DA	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1576DE

Deuteranopia (green-blind)

#0067D8

Tritanopia (blue-blind)

#008497

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3668da;
/* rgb */ color: rgb(54, 104, 218);
/* oklch */ color: oklch(54.8% 0.183 263.6);

Tailwind

colors: {
  custom: {
    50: '#8492e6',
    500: '#3668da',
    950: '#000000',
  },
}

SCSS

$custom: #3668da;
$custom-light: #8492e6;
$custom-dark: #000000;

JSON

{
  "hex": "#3668da",
  "rgb": {
    "r": 54,
    "g": 104,
    "b": 218
  },
  "hsl": {
    "h": 221.707,
    "s": 68.908,
    "l": 53.333
  },
  "oklch": {
    "l": 0.54805,
    "c": 0.18327,
    "h": 263.6
  },
  "luminance": 0.15747
}

Semantic roles & 50–950 ramp

primary

#3668DA

secondary

#D9C493

accent

#B63CEC

background

#F8F8FE

surface

#F0F0FC

border

#CBCBD5

text

#0C0C16

muted

#7D7D84

Preview Lab

Preview with #3668DA

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

Preview Lab → · Contrast checker → · Palette generator →