#3660BA#3660BA

#3660BA is a mid, vivid blue. Relative luminance 0.127; OKLCH L 50.8% C 0.150 H 263.3°. Best body text is #FFFFFF at 5.93:1 contrast (WCAG AA passes).

Color values

HEX	#3660BA
RGB	rgb(54, 96, 186)
HSL	hsl(221, 55%, 47%)
HSV	hsv(221, 71%, 73%)
CMYK	cmyk(71%, 48.4%, 0%, 27.1%)
CIE-LAB	lab(42.30, 16.27, -51.84)
CIE-LCH	lch(42.30, 54.33, 287.43°)
OKLab	oklab(50.81% -0.0176 -0.1487)
OKLCH	oklch(50.81% 0.15 263.3)
XYZ	xyz(14.5640, 12.6937, 48.1274)
Luminance	0.1270 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3660BA #BA9036

analogous

#36A2BA #3660BA #4E36BA

triadic

#3660BA #BA3660 #60BA36

tetradic

#3660BA #BA36A2 #BA9036 #36BA4E

square

#3660BA #BA36A2 #BA9036 #36BA4E

split-complementary

#3660BA #BA4E36 #A2BA36

monochromatic

#1A2F5B #28488B #3660BA #5D82D0 #8DA6DE

Accessibility & contrast

On white

5.93

#3660BA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.54

#3660BA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3660BA

5.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3660BA	#FFFFFF	#000000	##FFFFFF
##3660BA	1.00	5.93	3.54	5.93
#FFFFFF	5.93	1.00	21.00	1.00
#000000	3.54	21.00	1.00	21.00
##FFFFFF	5.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F6ABD

Deuteranopia (green-blind)

#085EB8

Tritanopia (blue-blind)

#007584

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3660ba;
/* rgb */ color: rgb(54, 96, 186);
/* oklch */ color: oklch(50.8% 0.150 263.3);

Tailwind

colors: {
  custom: {
    50: '#7d8ccf',
    500: '#3660ba',
    950: '#000000',
  },
}

SCSS

$custom: #3660ba;
$custom-light: #7d8ccf;
$custom-dark: #000000;

JSON

{
  "hex": "#3660ba",
  "rgb": {
    "r": 54,
    "g": 96,
    "b": 186
  },
  "hsl": {
    "h": 220.909,
    "s": 55,
    "l": 47.059
  },
  "oklch": {
    "l": 0.50811,
    "c": 0.14973,
    "h": 263.3
  },
  "luminance": 0.12695
}

Semantic roles & 50–950 ramp

primary

#3660BA

secondary

#C8B284

accent

#AF49DE

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C14

muted

#7C7D82

Preview Lab

Preview with #3660BA

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

Preview Lab → · Contrast checker → · Palette generator →