#3687C4#3687C4

#3687C4 is a mid, vivid cyan. Relative luminance 0.221; OKLCH L 60.2% C 0.121 H 244.8°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#3687C4
RGB	rgb(54, 135, 196)
HSL	hsl(206, 57%, 49%)
HSV	hsv(206, 72%, 77%)
CMYK	cmyk(72.4%, 31.1%, 0%, 23.1%)
CIE-LAB	lab(54.13, -4.16, -38.77)
CIE-LCH	lch(54.13, 38.99, 263.87°)
OKLab	oklab(60.2% -0.0518 -0.1098)
OKLCH	oklch(60.2% 0.121 244.8)
XYZ	xyz(20.1453, 22.0955, 55.4170)
Luminance	0.2210 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687C4 #C47336

analogous

#36C4BA #3687C4 #3640C4

triadic

#3687C4 #C43687 #87C436

tetradic

#3687C4 #BA36C4 #C47336 #40C436

square

#3687C4 #BA36C4 #C47336 #40C436

split-complementary

#3687C4 #C43640 #C4BA36

monochromatic

#1C4564 #296694 #3687C4 #63A4D4 #93C0E1

Accessibility & contrast

On white

3.87

#3687C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#3687C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687C4

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687C4	#FFFFFF	#000000	##000000
##3687C4	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B89C7

Deuteranopia (green-blind)

#577BC3

Tritanopia (blue-blind)

#00969D

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #3687c4;
/* rgb */ color: rgb(54, 135, 196);
/* oklch */ color: oklch(60.2% 0.121 244.8);

Tailwind

colors: {
  custom: {
    50: '#7fa9d6',
    500: '#3687c4',
    950: '#000000',
  },
}

SCSS

$custom: #3687c4;
$custom-light: #7fa9d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3687c4",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 196
  },
  "hsl": {
    "h": 205.775,
    "s": 56.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.60201,
    "c": 0.1214,
    "h": 244.8
  },
  "luminance": 0.22098
}

Semantic roles & 50–950 ramp

primary

#3687C4

secondary

#CCA689

accent

#8948E0

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3687C4

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

Preview Lab → · Contrast checker → · Palette generator →