#3677CB#3677CB

#3677CB is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 57.0% C 0.146 H 256.1°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX#3677CB
RGBrgb(54, 119, 203)
HSLhsl(214, 59%, 50%)
HSVhsv(214, 73%, 80%)
CMYKcmyk(73.4%, 41.4%, 0%, 20.4%)
CIE-LABlab(49.84, 8.00, -49.55)
CIE-LCHlch(49.84, 50.19, 279.17°)
OKLaboklab(56.96% -0.035 -0.1416)
OKLCHoklch(56.96% 0.146 256.1)
XYZxyz(18.8937, 18.2876, 59.0224)
Luminance0.1829 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3677CB #CB8A36
analogous
#36C1CB #3677CB #4036CB
triadic
#3677CB #CB3677 #77CB36
tetradic
#3677CB #CB36C1 #CB8A36 #36CB40
square
#3677CB #CB36C1 #CB8A36 #36CB40
split-complementary
#3677CB #CB4036 #C1CB36
monochromatic
#1C3E6B #285B9C #3677CB #6798D8 #97B9E4

Accessibility & contrast

On white

4.51
#3677CB on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.66
#3677CB on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3677CB
4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3677CB#FFFFFF#000000##000000
##3677CB1.004.514.664.66
#FFFFFF4.511.0021.0021.00
#0000004.6621.001.001.00
##0000004.6621.001.001.00

Color blindness preview

Protanopia (red-blind)
#4F7ECE
Deuteranopia (green-blind)
#3570C9
Tritanopia (blue-blind)
#008B97
Achromatopsia (no color)
#777777

Design tokens & code

CSS
--color: #3677cb;
/* rgb */ color: rgb(54, 119, 203);
/* oklch */ color: oklch(57.0% 0.146 256.1);
Tailwind
colors: {
  custom: {
    50: '#809ddb',
    500: '#3677cb',
    950: '#000000',
  },
}
SCSS
$custom: #3677cb;
$custom-light: #809ddb;
$custom-dark: #000000;
JSON
{
  "hex": "#3677cb",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 203
  },
  "hsl": {
    "h": 213.826,
    "s": 58.893,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56964,
    "c": 0.14585,
    "h": 256.1
  },
  "luminance": 0.1829
}

Semantic roles & 50–950 ramp

primary
#3677CB
secondary
#D0B38D
accent
#9E46E2
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #3677CB

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

Preview Lab → · Contrast checker → · Palette generator →

#3677CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva