#359BB5#359BB5

#359BB5 is a light, moderate cyan. Relative luminance 0.275; OKLCH L 64.2% C 0.099 H 218.3°. Best body text is #000000 at 6.51:1 contrast (WCAG AA passes).

Color values

HEX#359BB5
RGBrgb(53, 155, 181)
HSLhsl(192, 55%, 46%)
HSVhsv(192, 71%, 71%)
CMYKcmyk(70.7%, 14.4%, 0%, 29%)
CIE-LABlab(59.46, -20.50, -21.98)
CIE-LCHlch(59.46, 30.06, 227.00°)
OKLaboklab(64.23% -0.0775 -0.0613)
OKLCHoklch(64.23% 0.099 218.3)
XYZxyz(21.5266, 27.5333, 47.8871)
Luminance0.2754 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#359BB5 #B54F35
analogous
#35B58F #359BB5 #355BB5
triadic
#359BB5 #B5359B #9BB535
tetradic
#359BB5 #8F35B5 #B54F35 #5BB535
square
#359BB5 #8F35B5 #B54F35 #5BB535
split-complementary
#359BB5 #B5355B #B58F35
monochromatic
#194A56 #277286 #359BB5 #59B6CE #88CBDC

Accessibility & contrast

On white

3.23
#359BB5 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.51
#359BB5 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #359BB5
6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##359BB5#FFFFFF#000000##000000
##359BB51.003.236.516.51
#FFFFFF3.231.0021.0021.00
#0000006.5121.001.001.00
##0000006.5121.001.001.00

Color blindness preview

Protanopia (red-blind)
#8A97B6
Deuteranopia (green-blind)
#798AB5
Tritanopia (blue-blind)
#00A4A3
Achromatopsia (no color)
#8F8F8F

Design tokens & code

CSS
--color: #359bb5;
/* rgb */ color: rgb(53, 155, 181);
/* oklch */ color: oklch(64.2% 0.099 218.3);
Tailwind
colors: {
  custom: {
    50: '#7db8cb',
    500: '#359bb5',
    950: '#000000',
  },
}
SCSS
$custom: #359bb5;
$custom-light: #7db8cb;
$custom-dark: #000000;
JSON
{
  "hex": "#359bb5",
  "rgb": {
    "r": 53,
    "g": 155,
    "b": 181
  },
  "hsl": {
    "h": 192.188,
    "s": 54.701,
    "l": 45.882
  },
  "oklch": {
    "l": 0.64234,
    "c": 0.09886,
    "h": 218.3
  },
  "luminance": 0.27536
}

Semantic roles & 50–950 ramp

primary
#359BB5
secondary
#C68E80
accent
#684ADE
background
#F8FBFC
surface
#EFF6F8
border
#CAD0D1
text
#0B1113
muted
#7C8082

Preview Lab

Preview with #359BB5

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

Preview Lab → · Contrast checker → · Palette generator →

#359BB5 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva