#3660BF#3660BF

#3660BF is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.2% C 0.157 H 263.8°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#3660BF
RGB	rgb(54, 96, 191)
HSL	hsl(222, 56%, 48%)
HSV	hsv(222, 72%, 75%)
CMYK	cmyk(71.7%, 49.7%, 0%, 25.1%)
CIE-LAB	lab(42.63, 18.13, -54.22)
CIE-LCH	lch(42.63, 57.17, 288.49°)
OKLab	oklab(51.17% -0.0169 -0.1557)
OKLCH	oklch(51.17% 0.157 263.8)
XYZ	xyz(15.1048, 12.9100, 50.9759)
Luminance	0.1291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3660BF #BF9536

analogous

#36A4BF #3660BF #5136BF

triadic

#3660BF #BF3660 #60BF36

tetradic

#3660BF #BF36A4 #BF9536 #36BF51

square

#3660BF #BF36A4 #BF9536 #36BF51

split-complementary

#3660BF #BF5136 #A4BF36

monochromatic

#1B3060 #29488F #3660BF #6083D2 #90A8E0

Accessibility & contrast

On white

5.86

#3660BF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#3660BF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3660BF

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3660BF	#FFFFFF	#000000	##FFFFFF
##3660BF	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#296BC2

Deuteranopia (green-blind)

#005FBD

Tritanopia (blue-blind)

#007786

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #3660bf;
/* rgb */ color: rgb(54, 96, 191);
/* oklch */ color: oklch(51.2% 0.157 263.8);

Tailwind

colors: {
  custom: {
    50: '#7e8cd3',
    500: '#3660bf',
    950: '#000000',
  },
}

SCSS

$custom: #3660bf;
$custom-light: #7e8cd3;
$custom-dark: #000000;

JSON

{
  "hex": "#3660bf",
  "rgb": {
    "r": 54,
    "g": 96,
    "b": 191
  },
  "hsl": {
    "h": 221.606,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.51168,
    "c": 0.15661,
    "h": 263.8
  },
  "luminance": 0.12912
}

Semantic roles & 50–950 ramp

primary

#3660BF

secondary

#CAB687

accent

#B149DF

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3660BF

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

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