#3668CC#3668CC

#3668CC is a mid, vivid blue. Relative luminance 0.150; OKLCH L 53.8% C 0.165 H 262.3°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#3668CC
RGB	rgb(54, 104, 204)
HSL	hsl(220, 60%, 51%)
HSV	hsv(220, 74%, 80%)
CMYK	cmyk(73.5%, 49%, 0%, 20%)
CIE-LAB	lab(45.69, 17.81, -56.78)
CIE-LCH	lch(45.69, 59.51, 287.41°)
OKLab	oklab(53.78% -0.0219 -0.1631)
OKLCH	oklch(53.78% 0.165 262.3)
XYZ	xyz(17.3668, 15.0426, 59.1033)
Luminance	0.1505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3668CC #CC9A36

analogous

#36B3CC #3668CC #4F36CC

triadic

#3668CC #CC3668 #68CC36

tetradic

#3668CC #CC36B3 #CC9A36 #36CC4F

square

#3668CC #CC36B3 #CC9A36 #36CC4F

split-complementary

#3668CC #CC4F36 #B3CC36

monochromatic

#1B366C #284F9D #3668CC #678DD8 #98B1E5

Accessibility & contrast

On white

5.24

#3668CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#3668CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3668CC

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3668CC	#FFFFFF	#000000	##FFFFFF
##3668CC	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2E73D0

Deuteranopia (green-blind)

#0066CA

Tritanopia (blue-blind)

#008090

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #3668cc;
/* rgb */ color: rgb(54, 104, 204);
/* oklch */ color: oklch(53.8% 0.165 262.3);

Tailwind

colors: {
  custom: {
    50: '#8192dc',
    500: '#3668cc',
    950: '#000000',
  },
}

SCSS

$custom: #3668cc;
$custom-light: #8192dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3668cc",
  "rgb": {
    "r": 54,
    "g": 104,
    "b": 204
  },
  "hsl": {
    "h": 220,
    "s": 59.524,
    "l": 50.588
  },
  "oklch": {
    "l": 0.53784,
    "c": 0.16458,
    "h": 262.3
  },
  "luminance": 0.15045
}

Semantic roles & 50–950 ramp

primary

#3668CC

secondary

#D0BA8E

accent

#AE45E3

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3668CC

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

Preview Lab → · Contrast checker → · Palette generator →