#3F8AD0#3F8AD0

#3F8AD0 is a mid, vivid cyan. Relative luminance 0.238; OKLCH L 61.8% C 0.130 H 249.4°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX#3F8AD0
RGBrgb(63, 138, 208)
HSLhsl(209, 61%, 53%)
HSVhsv(209, 70%, 82%)
CMYKcmyk(69.7%, 33.7%, 0%, 18.4%)
CIE-LABlab(55.87, -0.40, -42.80)
CIE-LCHlch(55.87, 42.80, 269.46°)
OKLaboklab(61.85% -0.0457 -0.1214)
OKLCHoklch(61.85% 0.13 249.4)
XYZxyz(22.5193, 23.7854, 63.0665)
Luminance0.2379 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F8AD0 #D0853F
analogous
#3FD0CE #3F8AD0 #3F41D0
triadic
#3F8AD0 #D03F8A #8AD03F
tetradic
#3F8AD0 #CE3FD0 #D0853F #41D03F
square
#3F8AD0 #CE3FD0 #D0853F #41D03F
split-complementary
#3F8AD0 #D03F41 #D0CE3F
monochromatic
#1D4C77 #296BA9 #3F8AD0 #70A8DC #A1C6E8

Accessibility & contrast

On white

3.65
#3F8AD0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.76
#3F8AD0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8AD0
5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F8AD0#FFFFFF#000000##000000
##3F8AD01.003.655.765.76
#FFFFFF3.651.0021.0021.00
#0000005.7621.001.001.00
##0000005.7621.001.001.00

Color blindness preview

Protanopia (red-blind)
#6B8DD3
Deuteranopia (green-blind)
#5680CF
Tritanopia (blue-blind)
#009BA3
Achromatopsia (no color)
#868686

Design tokens & code

CSS
--color: #3f8ad0;
/* rgb */ color: rgb(63, 138, 208);
/* oklch */ color: oklch(61.8% 0.130 249.4);
Tailwind
colors: {
  custom: {
    50: '#84abde',
    500: '#3f8ad0',
    950: '#000000',
  },
}
SCSS
$custom: #3f8ad0;
$custom-light: #84abde;
$custom-dark: #000000;
JSON
{
  "hex": "#3f8ad0",
  "rgb": {
    "r": 63,
    "g": 138,
    "b": 208
  },
  "hsl": {
    "h": 208.966,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.61845,
    "c": 0.12973,
    "h": 249.4
  },
  "luminance": 0.23788
}

Semantic roles & 50–950 ramp

primary
#3F8AD0
secondary
#D5B496
accent
#9144E4
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3F8AD0

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

Preview Lab → · Contrast checker → · Palette generator →

#3F8AD0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva