#3687CC#3687CC

#3687CC is a mid, vivid cyan. Relative luminance 0.225; OKLCH L 60.6% C 0.131 H 247.8°. Best body text is #000000 at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#3687CC
RGB	rgb(54, 135, 204)
HSL	hsl(208, 60%, 51%)
HSV	hsv(208, 74%, 80%)
CMYK	cmyk(73.5%, 33.8%, 0%, 20%)
CIE-LAB	lab(54.52, -1.32, -42.69)
CIE-LCH	lch(54.52, 42.71, 268.23°)
OKLab	oklab(60.64% -0.0494 -0.1212)
OKLCH	oklch(60.64% 0.131 247.8)
XYZ	xyz(21.0802, 22.4695, 60.3411)
Luminance	0.2247 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687CC #CC7B36

analogous

#36CCC6 #3687CC #363CCC

triadic

#3687CC #CC3687 #87CC36

tetradic

#3687CC #C636CC #CC7B36 #3CCC36

square

#3687CC #C636CC #CC7B36 #3CCC36

split-complementary

#3687CC #CC363C #CCC636

monochromatic

#1B476C #28679D #3687CC #67A4D8 #98C1E5

Accessibility & contrast

On white

3.82

#3687CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.49

#3687CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687CC

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687CC	#FFFFFF	#000000	##000000
##3687CC	1.00	3.82	5.49	5.49
#FFFFFF	3.82	1.00	21.00	21.00
#000000	5.49	21.00	1.00	1.00
##000000	5.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#678ACF

Deuteranopia (green-blind)

#527CCB

Tritanopia (blue-blind)

#0098A0

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3687cc;
/* rgb */ color: rgb(54, 135, 204);
/* oklch */ color: oklch(60.6% 0.131 247.8);

Tailwind

colors: {
  custom: {
    50: '#80a9dc',
    500: '#3687cc',
    950: '#000000',
  },
}

SCSS

$custom: #3687cc;
$custom-light: #80a9dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3687cc",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 204
  },
  "hsl": {
    "h": 207.6,
    "s": 59.524,
    "l": 50.588
  },
  "oklch": {
    "l": 0.6064,
    "c": 0.13093,
    "h": 247.8
  },
  "luminance": 0.22472
}

Semantic roles & 50–950 ramp

primary

#3687CC

secondary

#D0AC8E

accent

#8E45E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3687CC

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

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