#3687B3#3687B3

#3687B3 is a mid, moderate cyan. Relative luminance 0.214; OKLCH L 59.3% C 0.103 H 236.1°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).

Color values

HEX	#3687B3
RGB	rgb(54, 135, 179)
HSL	hsl(201, 54%, 46%)
HSV	hsv(201, 70%, 70%)
CMYK	cmyk(69.8%, 24.6%, 0%, 29.8%)
CIE-LAB	lab(53.35, -10.09, -30.29)
CIE-LCH	lch(53.35, 31.92, 251.57°)
OKLab	oklab(59.33% -0.0573 -0.0852)
OKLCH	oklch(59.33% 0.103 236.1)
XYZ	xyz(18.3188, 21.3649, 45.7975)
Luminance	0.2137 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3687B3 #B36236

analogous

#36B3A0 #3687B3 #3648B3

triadic

#3687B3 #B33687 #87B336

tetradic

#3687B3 #A036B3 #B36236 #48B336

square

#3687B3 #A036B3 #B36236 #48B336

split-complementary

#3687B3 #B33648 #B3A036

monochromatic

#1A4055 #286484 #3687B3 #59A4CD #88BEDB

Accessibility & contrast

On white

3.98

#3687B3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.27

#3687B3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3687B3

5.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3687B3	#FFFFFF	#000000	##000000
##3687B3	1.00	3.98	5.27	5.27
#FFFFFF	3.98	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)

#7286B5

Deuteranopia (green-blind)

#617AB2

Tritanopia (blue-blind)

#009296

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3687b3;
/* rgb */ color: rgb(54, 135, 179);
/* oklch */ color: oklch(59.3% 0.103 236.1);

Tailwind

colors: {
  custom: {
    50: '#7ca9ca',
    500: '#3687b3',
    950: '#000000',
  },
}

SCSS

$custom: #3687b3;
$custom-light: #7ca9ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3687b3",
  "rgb": {
    "r": 54,
    "g": 135,
    "b": 179
  },
  "hsl": {
    "h": 201.12,
    "s": 53.648,
    "l": 45.686
  },
  "oklch": {
    "l": 0.59325,
    "c": 0.10266,
    "h": 236.1
  },
  "luminance": 0.21367
}

Semantic roles & 50–950 ramp

primary

#3687B3

secondary

#C59880

accent

#7E4BDD

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3687B3

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

Preview Lab → · Contrast checker → · Palette generator →