#3680BB#3680BB

#3680BB is a mid, moderate cyan. Relative luminance 0.198; OKLCH L 58.1% C 0.117 H 245.9°. Best body text is #000000 at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#3680BB
RGB	rgb(54, 128, 187)
HSL	hsl(207, 55%, 47%)
HSV	hsv(207, 71%, 73%)
CMYK	cmyk(71.1%, 31.6%, 0%, 26.7%)
CIE-LAB	lab(51.62, -3.24, -37.58)
CIE-LCH	lch(51.62, 37.72, 265.07°)
OKLab	oklab(58.08% -0.0476 -0.1064)
OKLCH	oklch(58.08% 0.117 245.9)
XYZ	xyz(18.2067, 19.8085, 49.8680)
Luminance	0.1981 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680BB #BB7136

analogous

#36BBB4 #3680BB #363DBB

triadic

#3680BB #BB3680 #80BB36

tetradic

#3680BB #B436BB #BB7136 #3DBB36

square

#3680BB #B436BB #BB7136 #3DBB36

split-complementary

#3680BB #BB363D #BBB436

monochromatic

#1B3F5C #285F8C #3680BB #5E9ED0 #8DBADE

Accessibility & contrast

On white

4.23

#3680BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.96

#3680BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680BB

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680BB	#FFFFFF	#000000	##000000
##3680BB	1.00	4.23	4.96	4.96
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.96	21.00	1.00	1.00
##000000	4.96	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6582BE

Deuteranopia (green-blind)

#5375BA

Tritanopia (blue-blind)

#008E95

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3680bb;
/* rgb */ color: rgb(54, 128, 187);
/* oklch */ color: oklch(58.1% 0.117 245.9);

Tailwind

colors: {
  custom: {
    50: '#7da4cf',
    500: '#3680bb',
    950: '#000000',
  },
}

SCSS

$custom: #3680bb;
$custom-light: #7da4cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3680bb",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 187
  },
  "hsl": {
    "h": 206.617,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.58079,
    "c": 0.11659,
    "h": 245.9
  },
  "luminance": 0.1981
}

Semantic roles & 50–950 ramp

primary

#3680BB

secondary

#C9A384

accent

#8B49DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3680BB

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

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