#3680B9#3680B9

#3680B9 is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 58.0% C 0.114 H 245.0°. Best body text is #000000 at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3680B9
RGB	rgb(54, 128, 185)
HSL	hsl(206, 55%, 47%)
HSV	hsv(206, 71%, 73%)
CMYK	cmyk(70.8%, 30.8%, 0%, 27.5%)
CIE-LAB	lab(51.52, -3.95, -36.58)
CIE-LCH	lch(51.52, 36.80, 263.84°)
OKLab	oklab(57.97% -0.0482 -0.1035)
OKLCH	oklch(57.97% 0.114 245)
XYZ	xyz(17.9941, 19.7234, 48.7482)
Luminance	0.1973 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680B9 #B96F36

analogous

#36B9B1 #3680B9 #363EB9

triadic

#3680B9 #B93680 #80B936

tetradic

#3680B9 #B136B9 #B96F36 #3EB936

square

#3680B9 #B136B9 #B96F36 #3EB936

split-complementary

#3680B9 #B9363E #B9B136

monochromatic

#1A3E5A #285F8A #3680B9 #5D9ED0 #8CBADD

Accessibility & contrast

On white

4.25

#3680B9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.95

#3680B9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680B9

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680B9	#FFFFFF	#000000	##000000
##3680B9	1.00	4.25	4.95	4.95
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.95	21.00	1.00	1.00
##000000	4.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6682BB

Deuteranopia (green-blind)

#5475B8

Tritanopia (blue-blind)

#008E94

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3680b9;
/* rgb */ color: rgb(54, 128, 185);
/* oklch */ color: oklch(58.0% 0.114 245.0);

Tailwind

colors: {
  custom: {
    50: '#7da4ce',
    500: '#3680b9',
    950: '#000000',
  },
}

SCSS

$custom: #3680b9;
$custom-light: #7da4ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3680b9",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 185
  },
  "hsl": {
    "h": 206.107,
    "s": 54.812,
    "l": 46.863
  },
  "oklch": {
    "l": 0.57971,
    "c": 0.1142,
    "h": 245
  },
  "luminance": 0.19725
}

Semantic roles & 50–950 ramp

primary

#3680B9

secondary

#C8A183

accent

#8A4ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3680B9

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

Preview Lab → · Contrast checker → · Palette generator →