#3681BB#3681BB

#3681BB is a mid, moderate cyan. Relative luminance 0.201; OKLCH L 58.3% C 0.116 H 245.2°. Best body text is #000000 at 5.01:1 contrast (WCAG AA passes).

Color values

HEX	#3681BB
RGB	rgb(54, 129, 187)
HSL	hsl(206, 55%, 47%)
HSV	hsv(206, 71%, 73%)
CMYK	cmyk(71.1%, 31%, 0%, 26.7%)
CIE-LAB	lab(51.92, -3.83, -37.11)
CIE-LCH	lch(51.92, 37.31, 264.11°)
OKLab	oklab(58.31% -0.0486 -0.105)
OKLCH	oklch(58.31% 0.116 245.2)
XYZ	xyz(18.3378, 20.0706, 49.9116)
Luminance	0.2007 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3681BB #BB7036

analogous

#36BBB2 #3681BB #363FBB

triadic

#3681BB #BB3681 #81BB36

tetradic

#3681BB #B236BB #BB7036 #3FBB36

square

#3681BB #B236BB #BB7036 #3FBB36

split-complementary

#3681BB #BB363F #BBB236

monochromatic

#1B3F5C #28608C #3681BB #5E9ED0 #8DBBDE

Accessibility & contrast

On white

4.19

#3681BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.01

#3681BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3681BB

5.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3681BB	#FFFFFF	#000000	##000000
##3681BB	1.00	4.19	5.01	5.01
#FFFFFF	4.19	1.00	21.00	21.00
#000000	5.01	21.00	1.00	1.00
##000000	5.01	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6783BE

Deuteranopia (green-blind)

#5476BA

Tritanopia (blue-blind)

#008F96

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3681bb;
/* rgb */ color: rgb(54, 129, 187);
/* oklch */ color: oklch(58.3% 0.116 245.2);

Tailwind

colors: {
  custom: {
    50: '#7da5cf',
    500: '#3681bb',
    950: '#000000',
  },
}

SCSS

$custom: #3681bb;
$custom-light: #7da5cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3681bb",
  "rgb": {
    "r": 54,
    "g": 129,
    "b": 187
  },
  "hsl": {
    "h": 206.165,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.58313,
    "c": 0.11575,
    "h": 245.2
  },
  "luminance": 0.20073
}

Semantic roles & 50–950 ramp

primary

#3681BB

secondary

#C9A284

accent

#8A49DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3681BB

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

Preview Lab → · Contrast checker → · Palette generator →