#3677D0#3677D0

#3677D0 is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 57.3% C 0.152 H 257.1°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).

Color values

HEX#3677D0
RGBrgb(54, 119, 208)
HSLhsl(215, 62%, 51%)
HSVhsv(215, 74%, 82%)
CMYKcmyk(74%, 42.8%, 0%, 18.4%)
CIE-LABlab(50.13, 9.84, -51.94)
CIE-LCHlch(50.13, 52.86, 280.73°)
OKLaboklab(57.28% -0.034 -0.1486)
OKLCHoklch(57.28% 0.152 257.1)
XYZxyz(19.4991, 18.5298, 62.2112)
Luminance0.1853 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3677D0 #D08F36
analogous
#36C4D0 #3677D0 #4236D0
triadic
#3677D0 #D03677 #77D036
tetradic
#3677D0 #D036C4 #D08F36 #36D042
square
#3677D0 #D036C4 #D08F36 #36D042
split-complementary
#3677D0 #D04236 #C4D036
monochromatic
#1A3F71 #265BA3 #3677D0 #6899DC #99BAE7

Accessibility & contrast

On white

4.46
#3677D0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

4.71
#3677D0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3677D0
4.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3677D0#FFFFFF#000000##000000
##3677D01.004.464.714.71
#FFFFFF4.461.0021.0021.00
#0000004.7121.001.001.00
##0000004.7121.001.001.00

Color blindness preview

Protanopia (red-blind)
#4B7FD3
Deuteranopia (green-blind)
#2F71CE
Tritanopia (blue-blind)
#008C99
Achromatopsia (no color)
#777777

Design tokens & code

CSS
--color: #3677d0;
/* rgb */ color: rgb(54, 119, 208);
/* oklch */ color: oklch(57.3% 0.152 257.1);
Tailwind
colors: {
  custom: {
    50: '#819ddf',
    500: '#3677d0',
    950: '#000000',
  },
}
SCSS
$custom: #3677d0;
$custom-light: #819ddf;
$custom-dark: #000000;
JSON
{
  "hex": "#3677d0",
  "rgb": {
    "r": 54,
    "g": 119,
    "b": 208
  },
  "hsl": {
    "h": 214.675,
    "s": 62.097,
    "l": 51.373
  },
  "oklch": {
    "l": 0.57283,
    "c": 0.15244,
    "h": 257.1
  },
  "luminance": 0.18532
}

Semantic roles & 50–950 ramp

primary
#3677D0
secondary
#D3B68F
accent
#A143E5
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #3677D0

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

Preview Lab → · Contrast checker → · Palette generator →

#3677D0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva