#3F80CC#3F80CC

#3F80CC is a mid, vivid cyan. Relative luminance 0.209; OKLCH L 59.4% C 0.134 H 254.0°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX#3F80CC
RGBrgb(63, 128, 204)
HSLhsl(212, 58%, 52%)
HSVhsv(212, 69%, 80%)
CMYKcmyk(69.1%, 37.3%, 0%, 20%)
CIE-LABlab(52.79, 4.15, -45.42)
CIE-LCHlch(52.79, 45.60, 275.22°)
OKLaboklab(59.36% -0.0371 -0.1292)
OKLCHoklch(59.36% 0.134 254)
XYZxyz(20.6641, 20.8526, 60.0509)
Luminance0.2086 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F80CC #CC8B3F
analogous
#3FC7CC #3F80CC #443FCC
triadic
#3F80CC #CC3F80 #80CC3F
tetradic
#3F80CC #CC3FC7 #CC8B3F #3FCC44
square
#3F80CC #CC3FC7 #CC8B3F #3FCC44
split-complementary
#3F80CC #CC443F #C7CC3F
monochromatic
#1E4572 #2B62A3 #3F80CC #6FA0D9 #A0C0E6

Accessibility & contrast

On white

4.06
#3F80CC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.17
#3F80CC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F80CC
5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F80CC#FFFFFF#000000##000000
##3F80CC1.004.065.175.17
#FFFFFF4.061.0021.0021.00
#0000005.1721.001.001.00
##0000005.1721.001.001.00

Color blindness preview

Protanopia (red-blind)
#5E85CF
Deuteranopia (green-blind)
#4978CA
Tritanopia (blue-blind)
#00929C
Achromatopsia (no color)
#7E7E7E

Design tokens & code

CSS
--color: #3f80cc;
/* rgb */ color: rgb(63, 128, 204);
/* oklch */ color: oklch(59.4% 0.134 254.0);
Tailwind
colors: {
  custom: {
    50: '#84a4dc',
    500: '#3f80cc',
    950: '#000000',
  },
}
SCSS
$custom: #3f80cc;
$custom-light: #84a4dc;
$custom-dark: #000000;
JSON
{
  "hex": "#3f80cc",
  "rgb": {
    "r": 63,
    "g": 128,
    "b": 204
  },
  "hsl": {
    "h": 212.34,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.59363,
    "c": 0.13442,
    "h": 254
  },
  "luminance": 0.20855
}

Semantic roles & 50–950 ramp

primary
#3F80CC
secondary
#D2B695
accent
#9A47E1
background
#F8FAFD
surface
#F0F3FB
border
#CBCDD4
text
#0C0F15
muted
#7D7F83

Preview Lab

Preview with #3F80CC

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

Preview Lab → · Contrast checker → · Palette generator →

#3F80CC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva