#3687B2#3687B2

#3687B2 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.3% C 0.102 H 235.5°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#3687B2
RGB	rgb(54, 135, 178)
HSL	hsl(201, 53%, 45%)
HSV	hsv(201, 70%, 70%)
CMYK	cmyk(69.7%, 24.2%, 0%, 30.2%)
CIE-LAB	lab(53.30, -10.43, -29.78)
CIE-LCH	lch(53.30, 31.56, 250.69°)
OKLab	oklab(59.28% -0.0576 -0.0837)
OKLCH	oklch(59.28% 0.102 235.5)
XYZ	xyz(18.2180, 21.3246, 45.2668)
Luminance	0.2133 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687B2 #B26136

analogous

#36B29F #3687B2 #3649B2

triadic

#3687B2 #B23687 #87B236

tetradic

#3687B2 #9F36B2 #B26136 #49B236

square

#3687B2 #9F36B2 #B26136 #49B236

split-complementary

#3687B2 #B23649 #B29F36

monochromatic

#1A4054 #286383 #3687B2 #59A4CD #88BEDB

Accessibility & contrast

On white

3.99

#3687B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#3687B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687B2

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687B2	#FFFFFF	#000000	##000000
##3687B2	1.00	3.99	5.27	5.27
#FFFFFF	3.99	1.00	21.00	21.00
#000000	5.27	21.00	1.00	1.00
##000000	5.27	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7286B4

Deuteranopia (green-blind)

#617AB1

Tritanopia (blue-blind)

#009296

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3687b2;
/* rgb */ color: rgb(54, 135, 178);
/* oklch */ color: oklch(59.3% 0.102 235.5);

Tailwind

colors: {
  custom: {
    50: '#7ca9c9',
    500: '#3687b2',
    950: '#000000',
  },
}

SCSS

$custom: #3687b2;
$custom-light: #7ca9c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3687b2",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 178
  },
  "hsl": {
    "h": 200.806,
    "s": 53.448,
    "l": 45.49
  },
  "oklch": {
    "l": 0.59275,
    "c": 0.10165,
    "h": 235.5
  },
  "luminance": 0.21327
}

Semantic roles & 50–950 ramp

primary

#3687B2

secondary

#C5977F

accent

#7E4BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3687B2

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

Preview Lab → · Contrast checker → · Palette generator →