#309DBF#309DBF

#309DBF is a light, moderate cyan. Relative luminance 0.285; OKLCH L 65.0% C 0.107 H 223.4°. Best body text is #000000 at 6.70:1 contrast (WCAG AA passes).

Color values

HEX#309DBF
RGBrgb(48, 157, 191)
HSLhsl(194, 60%, 47%)
HSVhsv(194, 75%, 75%)
CMYKcmyk(74.9%, 17.8%, 0%, 25.1%)
CIE-LABlab(60.34, -18.94, -26.29)
CIE-LCHlch(60.34, 32.40, 234.23°)
OKLaboklab(65.03% -0.0779 -0.0736)
OKLCHoklch(65.03% 0.107 223.4)
XYZxyz(22.6760, 28.5012, 53.5863)
Luminance0.2850 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#309DBF #BF5230
analogous
#30BF9A #309DBF #3055BF
triadic
#309DBF #BF309D #9DBF30
tetradic
#309DBF #9A30BF #BF5230 #55BF30
square
#309DBF #9A30BF #BF5230 #55BF30
split-complementary
#309DBF #BF3055 #BF9A30
monochromatic
#174D5D #24758E #309DBF #57B7D5 #88CCE1

Accessibility & contrast

On white

3.13
#309DBF on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.70
#309DBF on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #309DBF
6.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##309DBF#FFFFFF#000000##000000
##309DBF1.003.136.706.70
#FFFFFF3.131.0021.0021.00
#0000006.7021.001.001.00
##0000006.7021.001.001.00

Color blindness preview

Protanopia (red-blind)
#8A99C1
Deuteranopia (green-blind)
#768BBF
Tritanopia (blue-blind)
#00A7A8
Achromatopsia (no color)
#919191

Design tokens & code

CSS
--color: #309dbf;
/* rgb */ color: rgb(48, 157, 191);
/* oklch */ color: oklch(65.0% 0.107 223.4);
Tailwind
colors: {
  custom: {
    50: '#7dbad2',
    500: '#309dbf',
    950: '#000000',
  },
}
SCSS
$custom: #309dbf;
$custom-light: #7dbad2;
$custom-dark: #000000;
JSON
{
  "hex": "#309dbf",
  "rgb": {
    "r": 48,
    "g": 157,
    "b": 191
  },
  "hsl": {
    "h": 194.266,
    "s": 59.833,
    "l": 46.863
  },
  "oklch": {
    "l": 0.65029,
    "c": 0.1072,
    "h": 223.4
  },
  "luminance": 0.28504
}

Semantic roles & 50–950 ramp

primary
#309DBF
secondary
#CB9280
accent
#6A45E3
background
#F8FBFC
surface
#EFF6F9
border
#CAD0D2
text
#0B1114
muted
#7C8082

Preview Lab

Preview with #309DBF

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

Preview Lab → · Contrast checker → · Palette generator →

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