#3680C5#3680C5

#3680C5 is a mid, vivid cyan. Relative luminance 0.203; OKLCH L 58.6% C 0.129 H 249.7°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3680C5
RGB	rgb(54, 128, 197)
HSL	hsl(209, 57%, 49%)
HSV	hsv(209, 73%, 77%)
CMYK	cmyk(72.6%, 35%, 0%, 22.7%)
CIE-LAB	lab(52.12, 0.34, -42.51)
CIE-LCH	lch(52.12, 42.51, 270.45°)
OKLab	oklab(58.64% -0.0448 -0.1208)
OKLCH	oklch(58.64% 0.129 249.7)
XYZ	xyz(19.3147, 20.2517, 55.7035)
Luminance	0.2025 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680C5 #C57B36

analogous

#36C5C3 #3680C5 #3639C5

triadic

#3680C5 #C53680 #80C536

tetradic

#3680C5 #C336C5 #C57B36 #39C536

square

#3680C5 #C336C5 #C57B36 #39C536

split-complementary

#3680C5 #C53639 #C5C336

monochromatic

#1C4265 #296195 #3680C5 #649ED4 #94BCE2

Accessibility & contrast

On white

4.16

#3680C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#3680C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680C5

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680C5	#FFFFFF	#000000	##000000
##3680C5	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)

#6184C8

Deuteranopia (green-blind)

#4C76C4

Tritanopia (blue-blind)

#009099

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3680c5;
/* rgb */ color: rgb(54, 128, 197);
/* oklch */ color: oklch(58.6% 0.129 249.7);

Tailwind

colors: {
  custom: {
    50: '#7fa4d7',
    500: '#3680c5',
    950: '#000000',
  },
}

SCSS

$custom: #3680c5;
$custom-light: #7fa4d7;
$custom-dark: #000000;

JSON

{
  "hex": "#3680c5",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 197
  },
  "hsl": {
    "h": 208.951,
    "s": 56.972,
    "l": 49.216
  },
  "oklch": {
    "l": 0.58637,
    "c": 0.12884,
    "h": 249.7
  },
  "luminance": 0.20254
}

Semantic roles & 50–950 ramp

primary

#3680C5

secondary

#CDAA8A

accent

#9148E0

background

#F8FAFD

surface

#EFF4FA

border

#CACED3

text

#0B0F14

muted

#7C7F83

Preview Lab

Preview with #3680C5

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

Preview Lab → · Contrast checker → · Palette generator →