#3680CC#3680CC

#3680CC is a mid, vivid cyan. Relative luminance 0.206; OKLCH L 59.0% C 0.138 H 251.8°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3680CC
RGB	rgb(54, 128, 204)
HSL	hsl(210, 60%, 51%)
HSV	hsv(210, 74%, 80%)
CMYK	cmyk(73.5%, 37.3%, 0%, 20%)
CIE-LAB	lab(52.49, 2.86, -45.91)
CIE-LCH	lch(52.49, 46.00, 273.57°)
OKLab	oklab(59.04% -0.043 -0.1308)
OKLCH	oklch(59.04% 0.138 251.8)
XYZ	xyz(20.1355, 20.5800, 60.0262)
Luminance	0.2058 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680CC #CC8236

analogous

#36CBCC #3680CC #3736CC

triadic

#3680CC #CC3680 #80CC36

tetradic

#3680CC #CC36CB #CC8236 #36CC37

square

#3680CC #CC36CB #CC8236 #36CC37

split-complementary

#3680CC #CC3736 #CBCC36

monochromatic

#1B436C #28629D #3680CC #679FD8 #98BEE5

Accessibility & contrast

On white

4.10

#3680CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#3680CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680CC

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680CC	#FFFFFF	#000000	##000000
##3680CC	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D85CF

Deuteranopia (green-blind)

#4677CA

Tritanopia (blue-blind)

#00929C

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3680cc;
/* rgb */ color: rgb(54, 128, 204);
/* oklch */ color: oklch(59.0% 0.138 251.8);

Tailwind

colors: {
  custom: {
    50: '#80a4dc',
    500: '#3680cc',
    950: '#000000',
  },
}

SCSS

$custom: #3680cc;
$custom-light: #80a4dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3680cc",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 204
  },
  "hsl": {
    "h": 210.4,
    "s": 59.524,
    "l": 50.588
  },
  "oklch": {
    "l": 0.59043,
    "c": 0.13764,
    "h": 251.8
  },
  "luminance": 0.20582
}

Semantic roles & 50–950 ramp

primary

#3680CC

secondary

#D0AF8E

accent

#9545E3

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3680CC

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

Preview Lab → · Contrast checker → · Palette generator →