#309BC9#309BC9

#309BC9 is a light, moderate cyan. Relative luminance 0.283; OKLCH L 65.0% C 0.116 H 231.4°. Best body text is #000000 at 6.66:1 contrast (WCAG AA passes).

Color values

HEX#309BC9
RGBrgb(48, 155, 201)
HSLhsl(198, 61%, 49%)
HSVhsv(198, 76%, 79%)
CMYKcmyk(76.1%, 22.9%, 0%, 21.2%)
CIE-LABlab(60.15, -14.49, -32.20)
CIE-LCHlch(60.15, 35.31, 245.77°)
OKLaboklab(65.01% -0.0723 -0.0906)
OKLCHoklch(65.01% 0.116 231.4)
XYZxyz(23.4786, 28.2853, 59.4692)
Luminance0.2829 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#309BC9 #C95E30
analogous
#30C9AB #309BC9 #304FC9
triadic
#309BC9 #C9309B #9BC930
tetradic
#309BC9 #AB30C9 #C95E30 #4FC930
square
#309BC9 #AB30C9 #C95E30 #4FC930
split-complementary
#309BC9 #C9304F #C9AB30
monochromatic
#184F66 #247598 #309BC9 #5EB4D8 #8FCBE4

Accessibility & contrast

On white

3.15
#309BC9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.66
#309BC9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309BC9
6.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##309BC9#FFFFFF#000000##000000
##309BC91.003.156.666.66
#FFFFFF3.151.0021.0021.00
#0000006.6621.001.001.00
##0000006.6621.001.001.00

Color blindness preview

Protanopia (red-blind)
#8499CB
Deuteranopia (green-blind)
#6F8BC8
Tritanopia (blue-blind)
#00A7AA
Achromatopsia (no color)
#919191

Design tokens & code

CSS
--color: #309bc9;
/* rgb */ color: rgb(48, 155, 201);
/* oklch */ color: oklch(65.0% 0.116 231.4);
Tailwind
colors: {
  custom: {
    50: '#7fb8d9',
    500: '#309bc9',
    950: '#000000',
  },
}
SCSS
$custom: #309bc9;
$custom-light: #7fb8d9;
$custom-dark: #000000;
JSON
{
  "hex": "#309bc9",
  "rgb": {
    "r": 48,
    "g": 155,
    "b": 201
  },
  "hsl": {
    "h": 198.039,
    "s": 61.446,
    "l": 48.824
  },
  "oklch": {
    "l": 0.65009,
    "c": 0.11593,
    "h": 231.4
  },
  "luminance": 0.28288
}

Semantic roles & 50–950 ramp

primary
#309BC9
secondary
#CF9C86
accent
#7443E5
background
#F8FBFD
surface
#F0F6FA
border
#CBD0D3
text
#0C1114
muted
#7D8083

Preview Lab

Preview with #309BC9

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

Preview Lab → · Contrast checker → · Palette generator →

#309BC9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva