#3687AF#3687AF

#3687AF is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 59.1% C 0.099 H 233.5°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#3687AF
RGB	rgb(54, 135, 175)
HSL	hsl(200, 53%, 45%)
HSV	hsv(200, 69%, 69%)
CMYK	cmyk(69.1%, 22.9%, 0%, 31.4%)
CIE-LAB	lab(53.17, -11.46, -28.26)
CIE-LCH	lch(53.17, 30.49, 247.93°)
OKLab	oklab(59.13% -0.0587 -0.0793)
OKLCH	oklch(59.13% 0.099 233.5)
XYZ	xyz(17.9201, 21.2054, 43.6978)
Luminance	0.2121 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687AF #AF5E36

analogous

#36AF9B #3687AF #364AAF

triadic

#3687AF #AF3687 #87AF36

tetradic

#3687AF #9B36AF #AF5E36 #4AAF36

square

#3687AF #9B36AF #AF5E36 #4AAF36

split-complementary

#3687AF #AF364A #AF9B36

monochromatic

#193F51 #286380 #3687AF #57A5CB #86BEDA

Accessibility & contrast

On white

4.01

#3687AF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#3687AF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687AF

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687AF	#FFFFFF	#000000	##000000
##3687AF	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7386B1

Deuteranopia (green-blind)

#637AAE

Tritanopia (blue-blind)

#009294

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3687af;
/* rgb */ color: rgb(54, 135, 175);
/* oklch */ color: oklch(59.1% 0.099 233.5);

Tailwind

colors: {
  custom: {
    50: '#7caac7',
    500: '#3687af',
    950: '#000000',
  },
}

SCSS

$custom: #3687af;
$custom-light: #7caac7;
$custom-dark: #000000;

JSON

{
  "hex": "#3687af",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 175
  },
  "hsl": {
    "h": 199.835,
    "s": 52.838,
    "l": 44.902
  },
  "oklch": {
    "l": 0.5913,
    "c": 0.0987,
    "h": 233.5
  },
  "luminance": 0.21207
}

Semantic roles & 50–950 ramp

primary

#3687AF

secondary

#C3957D

accent

#7B4CDC

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3687AF

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

Preview Lab → · Contrast checker → · Palette generator →