#3660BE#3660BE

#3660BE is a mid, vivid blue. Relative luminance 0.129; OKLCH L 51.1% C 0.155 H 263.7°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#3660BE
RGB	rgb(54, 96, 190)
HSL	hsl(221, 56%, 48%)
HSV	hsv(221, 72%, 75%)
CMYK	cmyk(71.6%, 49.5%, 0%, 25.5%)
CIE-LAB	lab(42.56, 17.76, -53.74)
CIE-LCH	lch(42.56, 56.60, 288.28°)
OKLab	oklab(51.1% -0.017 -0.1543)
OKLCH	oklch(51.1% 0.155 263.7)
XYZ	xyz(14.9952, 12.8661, 50.3984)
Luminance	0.1287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3660BE #BE9436

analogous

#36A4BE #3660BE #5036BE

triadic

#3660BE #BE3660 #60BE36

tetradic

#3660BE #BE36A4 #BE9436 #36BE50

square

#3660BE #BE36A4 #BE9436 #36BE50

split-complementary

#3660BE #BE5036 #A4BE36

monochromatic

#1B305F #28488E #3660BE #6083D2 #8FA8DF

Accessibility & contrast

On white

5.88

#3660BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#3660BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3660BE

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3660BE	#FFFFFF	#000000	##FFFFFF
##3660BE	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A6BC1

Deuteranopia (green-blind)

#005FBC

Tritanopia (blue-blind)

#007686

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3660be;
/* rgb */ color: rgb(54, 96, 190);
/* oklch */ color: oklch(51.1% 0.155 263.7);

Tailwind

colors: {
  custom: {
    50: '#7e8cd2',
    500: '#3660be',
    950: '#000000',
  },
}

SCSS

$custom: #3660be;
$custom-light: #7e8cd2;
$custom-dark: #000000;

JSON

{
  "hex": "#3660be",
  "rgb": {
    "r": 54,
    "g": 96,
    "b": 190
  },
  "hsl": {
    "h": 221.471,
    "s": 55.738,
    "l": 47.843
  },
  "oklch": {
    "l": 0.51096,
    "c": 0.15525,
    "h": 263.7
  },
  "luminance": 0.12868
}

Semantic roles & 50–950 ramp

primary

#3660BE

secondary

#CAB586

accent

#B149DF

background

#F8F8FD

surface

#EFF0FA

border

#CACBD3

text

#0B0C14

muted

#7C7D83

Preview Lab

Preview with #3660BE

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

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