#3680B8#3680B8

#3680B8 is a mid, moderate cyan. Relative luminance 0.197; OKLCH L 57.9% C 0.113 H 244.6°. Best body text is #000000 at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3680B8
RGB	rgb(54, 128, 184)
HSL	hsl(206, 55%, 47%)
HSV	hsv(206, 71%, 72%)
CMYK	cmyk(70.7%, 30.4%, 0%, 27.8%)
CIE-LAB	lab(51.48, -4.30, -36.08)
CIE-LCH	lch(51.48, 36.34, 263.20°)
OKLab	oklab(57.92% -0.0486 -0.1021)
OKLCH	oklch(57.92% 0.113 244.6)
XYZ	xyz(17.8889, 19.6813, 48.1942)
Luminance	0.1968 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3680B8 #B86E36

analogous

#36B8AF #3680B8 #363FB8

triadic

#3680B8 #B83680 #80B836

tetradic

#3680B8 #AF36B8 #B86E36 #3FB836

square

#3680B8 #AF36B8 #B86E36 #3FB836

split-complementary

#3680B8 #B8363F #B8AF36

monochromatic

#1A3E59 #285F89 #3680B8 #5C9ECF #8BBADD

Accessibility & contrast

On white

4.25

#3680B8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.94

#3680B8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3680B8

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3680B8	#FFFFFF	#000000	##000000
##3680B8	1.00	4.25	4.94	4.94
#FFFFFF	4.25	1.00	21.00	21.00
#000000	4.94	21.00	1.00	1.00
##000000	4.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6782BA

Deuteranopia (green-blind)

#5575B7

Tritanopia (blue-blind)

#008E94

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #3680b8;
/* rgb */ color: rgb(54, 128, 184);
/* oklch */ color: oklch(57.9% 0.113 244.6);

Tailwind

colors: {
  custom: {
    50: '#7da4cd',
    500: '#3680b8',
    950: '#000000',
  },
}

SCSS

$custom: #3680b8;
$custom-light: #7da4cd;
$custom-dark: #000000;

JSON

{
  "hex": "#3680b8",
  "rgb": {
    "r": 54,
    "g": 128,
    "b": 184
  },
  "hsl": {
    "h": 205.846,
    "s": 54.622,
    "l": 46.667
  },
  "oklch": {
    "l": 0.57917,
    "c": 0.11302,
    "h": 244.6
  },
  "luminance": 0.19683
}

Semantic roles & 50–950 ramp

primary

#3680B8

secondary

#C7A082

accent

#8A4ADE

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3680B8

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

Preview Lab → · Contrast checker → · Palette generator →