#3668CF#3668CF

#3668CF is a mid, vivid blue. Relative luminance 0.152; OKLCH L 54.0% C 0.169 H 262.7°. Best body text is #FFFFFF at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#3668CF
RGB	rgb(54, 104, 207)
HSL	hsl(220, 61%, 51%)
HSV	hsv(220, 74%, 81%)
CMYK	cmyk(73.9%, 49.8%, 0%, 18.8%)
CIE-LAB	lab(45.89, 18.92, -58.18)
CIE-LCH	lch(45.89, 61.18, 288.01°)
OKLab	oklab(54% -0.0215 -0.1672)
OKLCH	oklch(54% 0.169 262.7)
XYZ	xyz(17.7301, 15.1879, 61.0165)
Luminance	0.1519 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3668CF #CF9D36

analogous

#36B4CF #3668CF #5036CF

triadic

#3668CF #CF3668 #68CF36

tetradic

#3668CF #CF36B4 #CF9D36 #36CF50

square

#3668CF #CF36B4 #CF9D36 #36CF50

split-complementary

#3668CF #CF5036 #B4CF36

monochromatic

#1B3770 #274FA1 #3668CF #678DDB #99B2E7

Accessibility & contrast

On white

5.20

#3668CF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.04

#3668CF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3668CF

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3668CF	#FFFFFF	#000000	##FFFFFF
##3668CF	1.00	5.20	4.04	5.20
#FFFFFF	5.20	1.00	21.00	1.00
#000000	4.04	21.00	1.00	21.00
##FFFFFF	5.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A74D3

Deuteranopia (green-blind)

#0066CD

Tritanopia (blue-blind)

#008192

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3668cf;
/* rgb */ color: rgb(54, 104, 207);
/* oklch */ color: oklch(54.0% 0.169 262.7);

Tailwind

colors: {
  custom: {
    50: '#8192de',
    500: '#3668cf',
    950: '#000000',
  },
}

SCSS

$custom: #3668cf;
$custom-light: #8192de;
$custom-dark: #000000;

JSON

{
  "hex": "#3668cf",
  "rgb": {
    "r": 54,
    "g": 104,
    "b": 207
  },
  "hsl": {
    "h": 220.392,
    "s": 61.446,
    "l": 51.176
  },
  "oklch": {
    "l": 0.53999,
    "c": 0.16861,
    "h": 262.7
  },
  "luminance": 0.1519
}

Semantic roles & 50–950 ramp

primary

#3668CF

secondary

#D2BC8F

accent

#B043E5

background

#F8F8FD

surface

#F0F0FB

border

#CBCBD4

text

#0C0C15

muted

#7D7D83

Preview Lab

Preview with #3668CF

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

Preview Lab → · Contrast checker → · Palette generator →