#3680BC#3680BC

#3680BC is a mid, moderate cyan. Relative luminance 0.199; OKLCH L 58.1% C 0.118 H 246.3°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#3680BC
RGB	rgb(54, 128, 188)
HSL	hsl(207, 55%, 47%)
HSV	hsv(207, 71%, 74%)
CMYK	cmyk(71.3%, 31.9%, 0%, 26.3%)
CIE-LAB	lab(51.67, -2.88, -38.07)
CIE-LCH	lch(51.67, 38.18, 265.67°)
OKLab	oklab(58.13% -0.0473 -0.1079)
OKLCH	oklch(58.13% 0.118 246.3)
XYZ	xyz(18.3141, 19.8514, 50.4337)
Luminance	0.1985 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680BC #BC7236

analogous

#36BCB5 #3680BC #363DBC

triadic

#3680BC #BC3680 #80BC36

tetradic

#3680BC #B536BC #BC7236 #3DBC36

square

#3680BC #B536BC #BC7236 #3DBC36

split-complementary

#3680BC #BC363D #BCB536

monochromatic

#1B3F5D #28608C #3680BC #5E9ED1 #8EBADF

Accessibility & contrast

On white

4.22

#3680BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#3680BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680BC

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680BC	#FFFFFF	#000000	##000000
##3680BC	1.00	4.22	4.97	4.97
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6582BF

Deuteranopia (green-blind)

#5275BB

Tritanopia (blue-blind)

#008E95

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3680bc;
/* rgb */ color: rgb(54, 128, 188);
/* oklch */ color: oklch(58.1% 0.118 246.3);

Tailwind

colors: {
  custom: {
    50: '#7da4d0',
    500: '#3680bc',
    950: '#000000',
  },
}

SCSS

$custom: #3680bc;
$custom-light: #7da4d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3680bc",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 188
  },
  "hsl": {
    "h": 206.866,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.58134,
    "c": 0.11779,
    "h": 246.3
  },
  "luminance": 0.19853
}

Semantic roles & 50–950 ramp

primary

#3680BC

secondary

#C9A385

accent

#8C49DF

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3680BC

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

Preview Lab → · Contrast checker → · Palette generator →