#3579B8#3579B8

#3579B8 is a mid, moderate cyan. Relative luminance 0.179; OKLCH L 56.2% C 0.120 H 249.3°. Best body text is #FFFFFF at 4.59:1 contrast (WCAG AA passes).

Color values

HEX#3579B8
RGBrgb(53, 121, 184)
HSLhsl(209, 55%, 46%)
HSVhsv(209, 71%, 72%)
CMYKcmyk(71.2%, 34.2%, 0%, 27.8%)
CIE-LABlab(49.36, -0.28, -39.41)
CIE-LCHlch(49.36, 39.41, 269.60°)
OKLaboklab(56.25% -0.0422 -0.1119)
OKLCHoklch(56.25% 0.12 249.3)
XYZxyz(16.9540, 17.8905, 47.8978)
Luminance0.1789 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3579B8 #B87435
analogous
#35B8B6 #3579B8 #3538B8
triadic
#3579B8 #B83579 #79B835
tetradic
#3579B8 #B635B8 #B87435 #38B835
square
#3579B8 #B635B8 #B87435 #38B835
split-complementary
#3579B8 #B83538 #B8B635
monochromatic
#1A3B59 #275A88 #3579B8 #5B97D0 #8AB5DD

Accessibility & contrast

On white

4.59
#3579B8 on #FFFFFF
AA ✓AA large ✓AAA ✗

On black

4.58
#3579B8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3579B8
4.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3579B8#FFFFFF#000000##FFFFFF
##3579B81.004.594.584.59
#FFFFFF4.591.0021.001.00
#0000004.5821.001.0021.00
##FFFFFF4.591.0021.001.00

Color blindness preview

Protanopia (red-blind)
#5D7CBB
Deuteranopia (green-blind)
#4A70B7
Tritanopia (blue-blind)
#008890
Achromatopsia (no color)
#757575

Design tokens & code

CSS
--color: #3579b8;
/* rgb */ color: rgb(53, 121, 184);
/* oklch */ color: oklch(56.2% 0.120 249.3);
Tailwind
colors: {
  custom: {
    50: '#7c9fcd',
    500: '#3579b8',
    950: '#000000',
  },
}
SCSS
$custom: #3579b8;
$custom-light: #7c9fcd;
$custom-dark: #000000;
JSON
{
  "hex": "#3579b8",
  "rgb": {
    "r": 53,
    "g": 121,
    "b": 184
  },
  "hsl": {
    "h": 208.855,
    "s": 55.274,
    "l": 46.471
  },
  "oklch": {
    "l": 0.56245,
    "c": 0.11957,
    "h": 249.3
  },
  "luminance": 0.17892
}

Semantic roles & 50–950 ramp

primary
#3579B8
secondary
#C7A381
accent
#9149DF
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0E13
muted
#7C7E82

Preview Lab

Preview with #3579B8

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

Preview Lab → · Contrast checker → · Palette generator →

#3579B8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva