#3680D3#3680D3

#3680D3 is a mid, vivid cyan. Relative luminance 0.209; OKLCH L 59.5% C 0.147 H 253.6°. Best body text is #000000 at 5.19:1 contrast (WCAG AA passes).

Color values

HEX	#3680D3
RGB	rgb(54, 128, 211)
HSL	hsl(212, 64%, 52%)
HSV	hsv(212, 74%, 83%)
CMYK	cmyk(74.4%, 39.3%, 0%, 17.3%)
CIE-LAB	lab(52.87, 5.41, -49.28)
CIE-LCH	lch(52.87, 49.57, 276.26°)
OKLab	oklab(59.46% -0.0413 -0.1406)
OKLCH	oklch(59.46% 0.147 253.6)
XYZ	xyz(20.9940, 20.9234, 64.5476)
Luminance	0.2093 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680D3 #D38936

analogous

#36CED3 #3680D3 #3B36D3

triadic

#3680D3 #D33680 #80D336

tetradic

#3680D3 #D336CE #D38936 #36D33B

square

#3680D3 #D336CE #D38936 #36D33B

split-complementary

#3680D3 #D33B36 #CED336

monochromatic

#1A4575 #2562A7 #3680D3 #68A0DE #9ABFE9

Accessibility & contrast

On white

4.05

#3680D3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.19

#3680D3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680D3

5.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680D3	#FFFFFF	#000000	##000000
##3680D3	1.00	4.05	5.19	5.19
#FFFFFF	4.05	1.00	21.00	21.00
#000000	5.19	21.00	1.00	1.00
##000000	5.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5986D6

Deuteranopia (green-blind)

#4078D1

Tritanopia (blue-blind)

#00949F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3680d3;
/* rgb */ color: rgb(54, 128, 211);
/* oklch */ color: oklch(59.5% 0.147 253.6);

Tailwind

colors: {
  custom: {
    50: '#81a4e1',
    500: '#3680d3',
    950: '#000000',
  },
}

SCSS

$custom: #3680d3;
$custom-light: #81a4e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3680d3",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 211
  },
  "hsl": {
    "h": 211.72,
    "s": 64.082,
    "l": 51.961
  },
  "oklch": {
    "l": 0.59462,
    "c": 0.14656,
    "h": 253.6
  },
  "luminance": 0.20926
}

Semantic roles & 50–950 ramp

primary

#3680D3

secondary

#D5B490

accent

#9941E7

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3680D3

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

Preview Lab → · Contrast checker → · Palette generator →