#3687B6#3687B6

#3687B6 is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.5% C 0.106 H 237.9°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#3687B6
RGB	rgb(54, 135, 182)
HSL	hsl(202, 54%, 46%)
HSV	hsv(202, 70%, 71%)
CMYK	cmyk(70.3%, 25.8%, 0%, 28.6%)
CIE-LAB	lab(53.48, -9.06, -31.80)
CIE-LCH	lch(53.48, 33.07, 254.10°)
OKLab	oklab(59.47% -0.0562 -0.0896)
OKLCH	oklch(59.47% 0.106 237.9)
XYZ	xyz(18.6255, 21.4876, 47.4128)
Luminance	0.2149 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687B6 #B66536

analogous

#36B6A5 #3687B6 #3647B6

triadic

#3687B6 #B63687 #87B636

tetradic

#3687B6 #A536B6 #B66536 #47B636

square

#3687B6 #A536B6 #B66536 #47B636

split-complementary

#3687B6 #B63647 #B6A536

monochromatic

#1A4158 #286487 #3687B6 #5BA4CE #8ABEDC

Accessibility & contrast

On white

3.96

#3687B6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#3687B6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687B6

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687B6	#FFFFFF	#000000	##000000
##3687B6	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7187B8

Deuteranopia (green-blind)

#5F7AB5

Tritanopia (blue-blind)

#009397

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #3687b6;
/* rgb */ color: rgb(54, 135, 182);
/* oklch */ color: oklch(59.5% 0.106 237.9);

Tailwind

colors: {
  custom: {
    50: '#7da9cc',
    500: '#3687b6',
    950: '#000000',
  },
}

SCSS

$custom: #3687b6;
$custom-light: #7da9cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3687b6",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 182
  },
  "hsl": {
    "h": 202.031,
    "s": 54.237,
    "l": 46.275
  },
  "oklch": {
    "l": 0.59473,
    "c": 0.10577,
    "h": 237.9
  },
  "luminance": 0.2149
}

Semantic roles & 50–950 ramp

primary

#3687B6

secondary

#C69B81

accent

#804ADE

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3687B6

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

Preview Lab → · Contrast checker → · Palette generator →