#3577CC#3577CC

#3577CC is a mid, vivid cyan. Relative luminance 0.183; OKLCH L 57.0% C 0.147 H 256.1°. Best body text is #000000 at 4.66:1 contrast (WCAG AA passes).

Color values

HEX#3577CC
RGBrgb(53, 119, 204)
HSLhsl(214, 60%, 50%)
HSVhsv(214, 74%, 80%)
CMYKcmyk(74%, 41.7%, 0%, 20%)
CIE-LABlab(49.87, 8.24, -50.08)
CIE-LCHlch(49.87, 50.76, 279.34°)
OKLaboklab(56.99% -0.0355 -0.1432)
OKLCHoklch(56.99% 0.147 256.1)
XYZxyz(18.9601, 18.3080, 59.6496)
Luminance0.1831 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3577CC #CC8A35
analogous
#35C2CC #3577CC #3E35CC
triadic
#3577CC #CC3577 #77CC35
tetradic
#3577CC #CC35C2 #CC8A35 #35CC3E
square
#3577CC #CC35C2 #CC8A35 #35CC3E
split-complementary
#3577CC #CC3E35 #C2CC35
monochromatic
#1B3E6B #275B9C #3577CC #6698D8 #97B9E5

Accessibility & contrast

On white

4.50
#3577CC on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.66
#3577CC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3577CC
4.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3577CC#FFFFFF#000000##000000
##3577CC1.004.504.664.66
#FFFFFF4.501.0021.0021.00
#0000004.6621.001.001.00
##0000004.6621.001.001.00

Color blindness preview

Protanopia (red-blind)
#4E7ECF
Deuteranopia (green-blind)
#3470CA
Tritanopia (blue-blind)
#008B97
Achromatopsia (no color)
#777777

Design tokens & code

CSS
--color: #3577cc;
/* rgb */ color: rgb(53, 119, 204);
/* oklch */ color: oklch(57.0% 0.147 256.1);
Tailwind
colors: {
  custom: {
    50: '#809ddc',
    500: '#3577cc',
    950: '#000000',
  },
}
SCSS
$custom: #3577cc;
$custom-light: #809ddc;
$custom-dark: #000000;
JSON
{
  "hex": "#3577cc",
  "rgb": {
    "r": 53,
    "g": 119,
    "b": 204
  },
  "hsl": {
    "h": 213.775,
    "s": 59.684,
    "l": 50.392
  },
  "oklch": {
    "l": 0.56993,
    "c": 0.14749,
    "h": 256.1
  },
  "luminance": 0.1831
}

Semantic roles & 50–950 ramp

primary
#3577CC
secondary
#D0B38D
accent
#9E45E3
background
#F8F9FD
surface
#F0F2FB
border
#CBCCD4
text
#0C0E15
muted
#7D7E83

Preview Lab

Preview with #3577CC

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

Preview Lab → · Contrast checker → · Palette generator →

#3577CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva