#3660C0#3660C0

#3660C0 is a mid, vivid blue. Relative luminance 0.130; OKLCH L 51.2% C 0.158 H 263.9°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#3660C0
RGB	rgb(54, 96, 192)
HSL	hsl(222, 56%, 48%)
HSV	hsv(222, 72%, 75%)
CMYK	cmyk(71.9%, 50%, 0%, 24.7%)
CIE-LAB	lab(42.69, 18.50, -54.69)
CIE-LCH	lch(42.69, 57.73, 288.69°)
OKLab	oklab(51.24% -0.0168 -0.1571)
OKLCH	oklch(51.24% 0.158 263.9)
XYZ	xyz(15.2153, 12.9542, 51.5575)
Luminance	0.1296 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3660C0 #C09636

analogous

#36A5C0 #3660C0 #5136C0

triadic

#3660C0 #C03660 #60C036

tetradic

#3660C0 #C036A5 #C09636 #36C051

square

#3660C0 #C036A5 #C09636 #36C051

split-complementary

#3660C0 #C05136 #A5C036

monochromatic

#1B3060 #294890 #3660C0 #6183D2 #90A9E0

Accessibility & contrast

On white

5.85

#3660C0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#3660C0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3660C0

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3660C0	#FFFFFF	#000000	##FFFFFF
##3660C0	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#276CC3

Deuteranopia (green-blind)

#005FBE

Tritanopia (blue-blind)

#007787

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3660c0;
/* rgb */ color: rgb(54, 96, 192);
/* oklch */ color: oklch(51.2% 0.158 263.9);

Tailwind

colors: {
  custom: {
    50: '#7e8cd4',
    500: '#3660c0',
    950: '#000000',
  },
}

SCSS

$custom: #3660c0;
$custom-light: #7e8cd4;
$custom-dark: #000000;

JSON

{
  "hex": "#3660c0",
  "rgb": {
    "r": 54,
    "g": 96,
    "b": 192
  },
  "hsl": {
    "h": 221.739,
    "s": 56.098,
    "l": 48.235
  },
  "oklch": {
    "l": 0.51241,
    "c": 0.15798,
    "h": 263.9
  },
  "luminance": 0.12956
}

Semantic roles & 50–950 ramp

primary

#3660C0

secondary

#CBB687

accent

#B148DF

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3660C0

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

Preview Lab → · Contrast checker → · Palette generator →