#3F8CD0#3F8CD0

#3F8CD0 is a light, vivid cyan. Relative luminance 0.244; OKLCH L 62.3% C 0.128 H 248.1°. Best body text is #000000 at 5.87:1 contrast (WCAG AA passes).

Color values

HEX#3F8CD0
RGBrgb(63, 140, 208)
HSLhsl(208, 61%, 53%)
HSVhsv(208, 70%, 82%)
CMYKcmyk(69.7%, 32.7%, 0%, 18.4%)
CIE-LABlab(56.45, -1.58, -41.89)
CIE-LCHlch(56.45, 41.91, 267.85°)
OKLaboklab(62.3% -0.0477 -0.1187)
OKLCHoklch(62.3% 0.128 248.1)
XYZxyz(22.8089, 24.3645, 63.1630)
Luminance0.2437 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F8CD0 #D0833F
analogous
#3FD0CB #3F8CD0 #3F43D0
triadic
#3F8CD0 #D03F8C #8CD03F
tetradic
#3F8CD0 #CB3FD0 #D0833F #43D03F
square
#3F8CD0 #CB3FD0 #D0833F #43D03F
split-complementary
#3F8CD0 #D03F43 #D0CB3F
monochromatic
#1D4D77 #296DA9 #3F8CD0 #70A9DC #A1C7E8

Accessibility & contrast

On white

3.58
#3F8CD0 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.87
#3F8CD0 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8CD0
5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F8CD0#FFFFFF#000000##000000
##3F8CD01.003.585.875.87
#FFFFFF3.581.0021.0021.00
#0000005.8721.001.001.00
##0000005.8721.001.001.00

Color blindness preview

Protanopia (red-blind)
#6D8FD3
Deuteranopia (green-blind)
#5981CF
Tritanopia (blue-blind)
#009CA4
Achromatopsia (no color)
#878787

Design tokens & code

CSS
--color: #3f8cd0;
/* rgb */ color: rgb(63, 140, 208);
/* oklch */ color: oklch(62.3% 0.128 248.1);
Tailwind
colors: {
  custom: {
    50: '#84adde',
    500: '#3f8cd0',
    950: '#000000',
  },
}
SCSS
$custom: #3f8cd0;
$custom-light: #84adde;
$custom-dark: #000000;
JSON
{
  "hex": "#3f8cd0",
  "rgb": {
    "r": 63,
    "g": 140,
    "b": 208
  },
  "hsl": {
    "h": 208.138,
    "s": 60.669,
    "l": 53.137
  },
  "oklch": {
    "l": 0.623,
    "c": 0.12793,
    "h": 248.1
  },
  "luminance": 0.24367
}

Semantic roles & 50–950 ramp

primary
#3F8CD0
secondary
#D5B396
accent
#8F44E4
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #3F8CD0

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

Preview Lab → · Contrast checker → · Palette generator →

#3F8CD0 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva