#3F8DD1#3F8DD1

#3F8DD1 is a light, vivid cyan. Relative luminance 0.247; OKLCH L 62.6% C 0.128 H 247.9°. Best body text is #000000 at 5.94:1 contrast (WCAG AA passes).

Color values

HEX#3F8DD1
RGBrgb(63, 141, 209)
HSLhsl(208, 61%, 53%)
HSVhsv(208, 70%, 82%)
CMYKcmyk(69.9%, 32.5%, 0%, 18%)
CIE-LABlab(56.79, -1.81, -41.91)
CIE-LCHlch(56.79, 41.95, 267.52°)
OKLaboklab(62.58% -0.0483 -0.1188)
OKLCHoklch(62.58% 0.128 247.9)
XYZxyz(23.0791, 24.7075, 63.8619)
Luminance0.2471 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F8DD1 #D1833F
analogous
#3FD1CC #3F8DD1 #3F44D1
triadic
#3F8DD1 #D13F8D #8DD13F
tetradic
#3F8DD1 #CC3FD1 #D1833F #44D13F
square
#3F8DD1 #CC3FD1 #D1833F #44D13F
split-complementary
#3F8DD1 #D13F44 #D1CC3F
monochromatic
#1D4E79 #296EAA #3F8DD1 #70AADD #A2C8E9

Accessibility & contrast

On white

3.53
#3F8DD1 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.94
#3F8DD1 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8DD1
5.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F8DD1#FFFFFF#000000##000000
##3F8DD11.003.535.945.94
#FFFFFF3.531.0021.0021.00
#0000005.9421.001.001.00
##0000005.9421.001.001.00

Color blindness preview

Protanopia (red-blind)
#6E90D4
Deuteranopia (green-blind)
#5A82D0
Tritanopia (blue-blind)
#009DA5
Achromatopsia (no color)
#888888

Design tokens & code

CSS
--color: #3f8dd1;
/* rgb */ color: rgb(63, 141, 209);
/* oklch */ color: oklch(62.6% 0.128 247.9);
Tailwind
colors: {
  custom: {
    50: '#85aedf',
    500: '#3f8dd1',
    950: '#000000',
  },
}
SCSS
$custom: #3f8dd1;
$custom-light: #85aedf;
$custom-dark: #000000;
JSON
{
  "hex": "#3f8dd1",
  "rgb": {
    "r": 63,
    "g": 141,
    "b": 209
  },
  "hsl": {
    "h": 207.945,
    "s": 61.345,
    "l": 53.333
  },
  "oklch": {
    "l": 0.62582,
    "c": 0.12826,
    "h": 247.9
  },
  "luminance": 0.2471
}

Semantic roles & 50–950 ramp

primary
#3F8DD1
secondary
#D5B497
accent
#8E43E4
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3F8DD1

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

Preview Lab → · Contrast checker → · Palette generator →

#3F8DD1 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva