#3680CD#3680CD

#3680CD is a mid, vivid cyan. Relative luminance 0.206; OKLCH L 59.1% C 0.139 H 252.1°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#3680CD
RGB	rgb(54, 128, 205)
HSL	hsl(211, 60%, 51%)
HSV	hsv(211, 74%, 80%)
CMYK	cmyk(73.7%, 37.6%, 0%, 19.6%)
CIE-LAB	lab(52.54, 3.23, -46.39)
CIE-LCH	lch(52.54, 46.51, 273.98°)
OKLab	oklab(59.1% -0.0427 -0.1322)
OKLCH	oklch(59.1% 0.139 252.1)
XYZ	xyz(20.2558, 20.6281, 60.6599)
Luminance	0.2063 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680CD #CD8336

analogous

#36CBCD #3680CD #3736CD

triadic

#3680CD #CD3680 #80CD36

tetradic

#3680CD #CD36CB #CD8336 #36CD37

square

#3680CD #CD36CB #CD8336 #36CD37

split-complementary

#3680CD #CD3736 #CBCD36

monochromatic

#1B436D #27629E #3680CD #679FD9 #98BEE5

Accessibility & contrast

On white

4.10

#3680CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#3680CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680CD

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680CD	#FFFFFF	#000000	##000000
##3680CD	1.00	4.10	5.13	5.13
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C85D0

Deuteranopia (green-blind)

#4577CB

Tritanopia (blue-blind)

#00929D

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3680cd;
/* rgb */ color: rgb(54, 128, 205);
/* oklch */ color: oklch(59.1% 0.139 252.1);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3680cd",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 205
  },
  "hsl": {
    "h": 210.596,
    "s": 60.159,
    "l": 50.784
  },
  "oklch": {
    "l": 0.59102,
    "c": 0.13891,
    "h": 252.1
  },
  "luminance": 0.2063
}

Semantic roles & 50–950 ramp

primary

#3680CD

secondary

#D1B08E

accent

#9544E3

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #3680CD

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

Preview Lab → · Contrast checker → · Palette generator →