#3F8FD0#3F8FD0

#3F8FD0 is a light, vivid cyan. Relative luminance 0.253; OKLCH L 63.0% C 0.125 H 246.2°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).

Color values

HEX#3F8FD0
RGBrgb(63, 143, 208)
HSLhsl(207, 61%, 53%)
HSVhsv(207, 70%, 82%)
CMYKcmyk(69.7%, 31.3%, 0%, 18.4%)
CIE-LABlab(57.32, -3.32, -40.51)
CIE-LCHlch(57.32, 40.65, 265.31°)
OKLaboklab(62.99% -0.0506 -0.1147)
OKLCHoklch(62.99% 0.125 246.2)
XYZxyz(23.2532, 25.2532, 63.3111)
Luminance0.2526 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F8FD0 #D0803F
analogous
#3FD0C9 #3F8FD0 #3F46D0
triadic
#3F8FD0 #D03F8F #8FD03F
tetradic
#3F8FD0 #C93FD0 #D0803F #46D03F
square
#3F8FD0 #C93FD0 #D0803F #46D03F
split-complementary
#3F8FD0 #D03F46 #D0C93F
monochromatic
#1D4F77 #296FA9 #3F8FD0 #70ACDC #A1C8E8

Accessibility & contrast

On white

3.47
#3F8FD0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.05
#3F8FD0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8FD0
6.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F8FD0#FFFFFF#000000##000000
##3F8FD01.003.476.056.05
#FFFFFF3.471.0021.0021.00
#0000006.0521.001.001.00
##0000006.0521.001.001.00

Color blindness preview

Protanopia (red-blind)
#7291D3
Deuteranopia (green-blind)
#5E83CF
Tritanopia (blue-blind)
#009FA6
Achromatopsia (no color)
#8A8A8A

Design tokens & code

CSS
--color: #3f8fd0;
/* rgb */ color: rgb(63, 143, 208);
/* oklch */ color: oklch(63.0% 0.125 246.2);
Tailwind
colors: {
  custom: {
    50: '#84afde',
    500: '#3f8fd0',
    950: '#000000',
  },
}
SCSS
$custom: #3f8fd0;
$custom-light: #84afde;
$custom-dark: #000000;
JSON
{
  "hex": "#3f8fd0",
  "rgb": {
    "r": 63,
    "g": 143,
    "b": 208
  },
  "hsl": {
    "h": 206.897,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.62985,
    "c": 0.12535,
    "h": 246.2
  },
  "luminance": 0.25256
}

Semantic roles & 50–950 ramp

primary
#3F8FD0
secondary
#D5B296
accent
#8C44E4
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3F8FD0

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

Preview Lab → · Contrast checker → · Palette generator →

#3F8FD0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva