#3687C5#3687C5

#3687C5 is a mid, vivid cyan. Relative luminance 0.221; OKLCH L 60.3% C 0.123 H 245.2°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#3687C5
RGB	rgb(54, 135, 197)
HSL	hsl(206, 57%, 49%)
HSV	hsv(206, 73%, 77%)
CMYK	cmyk(72.6%, 31.5%, 0%, 22.7%)
CIE-LAB	lab(54.18, -3.81, -39.26)
CIE-LCH	lch(54.18, 39.45, 264.46°)
OKLab	oklab(60.26% -0.0515 -0.1112)
OKLCH	oklch(60.26% 0.123 245.2)
XYZ	xyz(20.2595, 22.1411, 56.0184)
Luminance	0.2214 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687C5 #C57436

analogous

#36C5BC #3687C5 #3640C5

triadic

#3687C5 #C53687 #87C536

tetradic

#3687C5 #BC36C5 #C57436 #40C536

square

#3687C5 #BC36C5 #C57436 #40C536

split-complementary

#3687C5 #C53640 #C5BC36

monochromatic

#1C4565 #296695 #3687C5 #64A4D4 #94C0E2

Accessibility & contrast

On white

3.87

#3687C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#3687C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687C5

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687C5	#FFFFFF	#000000	##000000
##3687C5	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B89C8

Deuteranopia (green-blind)

#577BC4

Tritanopia (blue-blind)

#00969D

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3687c5;
/* rgb */ color: rgb(54, 135, 197);
/* oklch */ color: oklch(60.3% 0.123 245.2);

Tailwind

colors: {
  custom: {
    50: '#7fa9d7',
    500: '#3687c5',
    950: '#000000',
  },
}

SCSS

$custom: #3687c5;
$custom-light: #7fa9d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3687c5",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 197
  },
  "hsl": {
    "h": 206.014,
    "s": 56.972,
    "l": 49.216
  },
  "oklch": {
    "l": 0.60255,
    "c": 0.12257,
    "h": 245.2
  },
  "luminance": 0.22143
}

Semantic roles & 50–950 ramp

primary

#3687C5

secondary

#CDA78A

accent

#8A48E0

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3687C5

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

Preview Lab → · Contrast checker → · Palette generator →