#3680C4#3680C4

#3680C4 is a mid, vivid cyan. Relative luminance 0.202; OKLCH L 58.6% C 0.128 H 249.3°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).

Color values

HEX	#3680C4
RGB	rgb(54, 128, 196)
HSL	hsl(209, 57%, 49%)
HSV	hsv(209, 72%, 77%)
CMYK	cmyk(72.4%, 34.7%, 0%, 23.1%)
CIE-LAB	lab(52.07, -0.02, -42.02)
CIE-LCH	lch(52.07, 42.02, 269.97°)
OKLab	oklab(58.58% -0.0451 -0.1194)
OKLCH	oklch(58.58% 0.128 249.3)
XYZ	xyz(19.2005, 20.2060, 55.1021)
Luminance	0.2021 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680C4 #C47A36

analogous

#36C4C1 #3680C4 #3639C4

triadic

#3680C4 #C43680 #80C436

tetradic

#3680C4 #C136C4 #C47A36 #39C436

square

#3680C4 #C136C4 #C47A36 #39C436

split-complementary

#3680C4 #C43639 #C4C136

monochromatic

#1C4164 #296194 #3680C4 #639ED4 #93BCE1

Accessibility & contrast

On white

4.17

#3680C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.04

#3680C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680C4

5.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680C4	#FFFFFF	#000000	##000000
##3680C4	1.00	4.17	5.04	5.04
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.04	21.00	1.00	1.00
##000000	5.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6183C7

Deuteranopia (green-blind)

#4D76C3

Tritanopia (blue-blind)

#009099

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3680c4;
/* rgb */ color: rgb(54, 128, 196);
/* oklch */ color: oklch(58.6% 0.128 249.3);

Tailwind

colors: {
  custom: {
    50: '#7fa4d6',
    500: '#3680c4',
    950: '#000000',
  },
}

SCSS

$custom: #3680c4;
$custom-light: #7fa4d6;
$custom-dark: #000000;

JSON

{
  "hex": "#3680c4",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 196
  },
  "hsl": {
    "h": 208.732,
    "s": 56.8,
    "l": 49.02
  },
  "oklch": {
    "l": 0.5858,
    "c": 0.12759,
    "h": 249.3
  },
  "luminance": 0.20208
}

Semantic roles & 50–950 ramp

primary

#3680C4

secondary

#CCA989

accent

#9148E0

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3680C4

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

Preview Lab → · Contrast checker → · Palette generator →