#3681BF#3681BF

#3681BF is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.5% C 0.121 H 246.8°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3681BF
RGB	rgb(54, 129, 191)
HSL	hsl(207, 56%, 48%)
HSV	hsv(207, 72%, 75%)
CMYK	cmyk(71.7%, 32.5%, 0%, 25.1%)
CIE-LAB	lab(52.11, -2.41, -39.09)
CIE-LCH	lch(52.11, 39.17, 266.48°)
OKLab	oklab(58.53% -0.0474 -0.1108)
OKLCH	oklch(58.53% 0.121 246.8)
XYZ	xyz(18.7720, 20.2443, 52.1983)
Luminance	0.2025 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3681BF #BF7436

analogous

#36BFB8 #3681BF #363DBF

triadic

#3681BF #BF3681 #81BF36

tetradic

#3681BF #B836BF #BF7436 #3DBF36

square

#3681BF #B836BF #BF7436 #3DBF36

split-complementary

#3681BF #BF363D #BFB836

monochromatic

#1B4160 #29618F #3681BF #609FD2 #90BBE0

Accessibility & contrast

On white

4.16

#3681BF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#3681BF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3681BF

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3681BF	#FFFFFF	#000000	##000000
##3681BF	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6583C2

Deuteranopia (green-blind)

#5276BE

Tritanopia (blue-blind)

#009097

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3681bf;
/* rgb */ color: rgb(54, 129, 191);
/* oklch */ color: oklch(58.5% 0.121 246.8);

Tailwind

colors: {
  custom: {
    50: '#7ea5d2',
    500: '#3681bf',
    950: '#000000',
  },
}

SCSS

$custom: #3681bf;
$custom-light: #7ea5d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3681bf",
  "rgb": {
    "r": 54,
    "g": 129,
    "b": 191
  },
  "hsl": {
    "h": 207.153,
    "s": 55.918,
    "l": 48.039
  },
  "oklch": {
    "l": 0.58531,
    "c": 0.12054,
    "h": 246.8
  },
  "luminance": 0.20246
}

Semantic roles & 50–950 ramp

primary

#3681BF

secondary

#CAA587

accent

#8D49DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3681BF

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

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