#3677BC#3677BC

#3677BC is a mid, vivid cyan. Relative luminance 0.176; OKLCH L 56.0% C 0.126 H 252.2°. Best body text is #FFFFFF at 4.64:1 contrast (WCAG AA passes).

Color values

HEX	#3677BC
RGB	rgb(54, 119, 188)
HSL	hsl(211, 55%, 47%)
HSV	hsv(211, 71%, 74%)
CMYK	cmyk(71.3%, 36.7%, 0%, 26.3%)
CIE-LAB	lab(49.02, 2.53, -42.27)
CIE-LCH	lch(49.02, 42.34, 273.42°)
OKLab	oklab(56.05% -0.0386 -0.1202)
OKLCH	oklch(56.05% 0.126 252.2)
XYZ	xyz(17.1919, 17.6069, 50.0596)
Luminance	0.1761 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3677BC #BC7B36

analogous

#36BABC #3677BC #3836BC

triadic

#3677BC #BC3677 #77BC36

tetradic

#3677BC #BC36BA #BC7B36 #36BC38

square

#3677BC #BC36BA #BC7B36 #36BC38

split-complementary

#3677BC #BC3836 #BABC36

monochromatic

#1B3B5D #28598C #3677BC #5E96D1 #8EB5DF

Accessibility & contrast

On white

4.64

#3677BC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.52

#3677BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3677BC

4.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3677BC	#FFFFFF	#000000	##FFFFFF
##3677BC	1.00	4.64	4.52	4.64
#FFFFFF	4.64	1.00	21.00	1.00
#000000	4.52	21.00	1.00	21.00
##FFFFFF	4.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#587BBF

Deuteranopia (green-blind)

#446FBB

Tritanopia (blue-blind)

#008790

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3677bc;
/* rgb */ color: rgb(54, 119, 188);
/* oklch */ color: oklch(56.0% 0.126 252.2);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#3677bc",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 188
  },
  "hsl": {
    "h": 210.896,
    "s": 55.372,
    "l": 47.451
  },
  "oklch": {
    "l": 0.5605,
    "c": 0.12626,
    "h": 252.2
  },
  "luminance": 0.17609
}

Semantic roles & 50–950 ramp

primary

#3677BC

secondary

#C9A885

accent

#9649DF

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3677BC

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

Preview Lab → · Contrast checker → · Palette generator →