#3680C9#3680C9

#3680C9 is a mid, vivid cyan. Relative luminance 0.204; OKLCH L 58.9% C 0.134 H 250.9°. Best body text is #000000 at 5.09:1 contrast (WCAG AA passes).

Color values

HEX	#3680C9
RGB	rgb(54, 128, 201)
HSL	hsl(210, 58%, 50%)
HSV	hsv(210, 73%, 79%)
CMYK	cmyk(73.1%, 36.3%, 0%, 21.2%)
CIE-LAB	lab(52.33, 1.78, -44.46)
CIE-LCH	lch(52.33, 44.49, 272.29°)
OKLab	oklab(58.87% -0.0437 -0.1265)
OKLCH	oklch(58.87% 0.134 250.9)
XYZ	xyz(19.7791, 20.4374, 58.1494)
Luminance	0.2044 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680C9 #C97F36

analogous

#36C9C9 #3680C9 #3636C9

triadic

#3680C9 #C93680 #80C936

tetradic

#3680C9 #C936C9 #C97F36 #36C936

square

#3680C9 #C936C9 #C97F36 #36C936

split-complementary

#3680C9 #C93636 #C9C936

monochromatic

#1C4369 #296199 #3680C9 #669ED6 #96BDE3

Accessibility & contrast

On white

4.13

#3680C9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.09

#3680C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680C9

5.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680C9	#FFFFFF	#000000	##000000
##3680C9	1.00	4.13	5.09	5.09
#FFFFFF	4.13	1.00	21.00	21.00
#000000	5.09	21.00	1.00	1.00
##000000	5.09	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E84CC

Deuteranopia (green-blind)

#4977C8

Tritanopia (blue-blind)

#00919B

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3680c9;
/* rgb */ color: rgb(54, 128, 201);
/* oklch */ color: oklch(58.9% 0.134 250.9);

Tailwind

colors: {
  custom: {
    50: '#80a4da',
    500: '#3680c9',
    950: '#000000',
  },
}

SCSS

$custom: #3680c9;
$custom-light: #80a4da;
$custom-dark: #000000;

JSON

{
  "hex": "#3680c9",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 201
  },
  "hsl": {
    "h": 209.796,
    "s": 57.647,
    "l": 50
  },
  "oklch": {
    "l": 0.58867,
    "c": 0.13385,
    "h": 250.9
  },
  "luminance": 0.2044
}

Semantic roles & 50–950 ramp

primary

#3680C9

secondary

#CEAD8C

accent

#9347E1

background

#F8FAFD

surface

#F0F3FA

border

#CBCDD3

text

#0B0F15

muted

#7C7F83

Preview Lab

Preview with #3680C9

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

Preview Lab → · Contrast checker → · Palette generator →