#3677BB#3677BB

#3677BB is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 56.0% C 0.125 H 251.9°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3677BB
RGB	rgb(54, 119, 187)
HSL	hsl(211, 55%, 47%)
HSV	hsv(211, 71%, 73%)
CMYK	cmyk(71.1%, 36.4%, 0%, 26.7%)
CIE-LAB	lab(48.96, 2.17, -41.77)
CIE-LCH	lch(48.96, 41.83, 272.97°)
OKLab	oklab(55.99% -0.0388 -0.1188)
OKLCH	oklch(55.99% 0.125 251.9)
XYZ	xyz(17.0844, 17.5639, 49.4939)
Luminance	0.1757 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677BB #BB7A36

analogous

#36BABB #3677BB #3836BB

triadic

#3677BB #BB3677 #77BB36

tetradic

#3677BB #BB36BA #BB7A36 #36BB38

square

#3677BB #BB36BA #BB7A36 #36BB38

split-complementary

#3677BB #BB3836 #BABB36

monochromatic

#1B3B5C #28598C #3677BB #5E96D0 #8DB5DE

Accessibility & contrast

On white

4.65

#3677BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#3677BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3677BB

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677BB	#FFFFFF	#000000	##FFFFFF
##3677BB	1.00	4.65	4.51	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#587BBE

Deuteranopia (green-blind)

#456FBA

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3677bb;
/* rgb */ color: rgb(54, 119, 187);
/* oklch */ color: oklch(56.0% 0.125 251.9);

Tailwind

colors: {
  custom: {
    50: '#7d9dd0',
    500: '#3677bb',
    950: '#000000',
  },
}

SCSS

$custom: #3677bb;
$custom-light: #7d9dd0;
$custom-dark: #000000;

JSON

{
  "hex": "#3677bb",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 187
  },
  "hsl": {
    "h": 210.677,
    "s": 55.187,
    "l": 47.255
  },
  "oklch": {
    "l": 0.55992,
    "c": 0.12497,
    "h": 251.9
  },
  "luminance": 0.17566
}

Semantic roles & 50–950 ramp

primary

#3677BB

secondary

#C9A784

accent

#9649DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3677BB

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

Preview Lab → · Contrast checker → · Palette generator →