#3FC9E8#3FC9E8

#3FC9E8 is a light, vivid cyan. Relative luminance 0.487; OKLCH L 77.6% C 0.122 H 216.3°. Best body text is #000000 at 10.73:1 contrast (WCAG AA passes).

Color values

HEX#3FC9E8
RGBrgb(63, 201, 232)
HSLhsl(191, 79%, 58%)
HSVhsv(191, 73%, 91%)
CMYKcmyk(72.8%, 13.4%, 0%, 9%)
CIE-LABlab(75.23, -26.54, -25.94)
CIE-LCHlch(75.23, 37.12, 224.34°)
OKLaboklab(77.59% -0.0984 -0.0724)
OKLCHoklch(77.59% 0.122 216.3)
XYZxyz(37.4959, 48.6518, 83.7429)
Luminance0.4866 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3FC9E8 #E85E3F
analogous
#3FE8B3 #3FC9E8 #3F74E8
triadic
#3FC9E8 #E83FC9 #C9E83F
tetradic
#3FC9E8 #B33FE8 #E85E3F #74E83F
square
#3FC9E8 #B33FE8 #E85E3F #74E83F
split-complementary
#3FC9E8 #E83F74 #E8B33F
monochromatic
#12819A #19AFD1 #3FC9E8 #76D8EF #ACE8F5

Accessibility & contrast

On white

1.96
#3FC9E8 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

10.73
#3FC9E8 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FC9E8
10.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3FC9E8#FFFFFF#000000##000000
##3FC9E81.001.9610.7310.73
#FFFFFF1.961.0021.0021.00
#00000010.7321.001.001.00
##00000010.7321.001.001.00

Color blindness preview

Protanopia (red-blind)
#B4C3EA
Deuteranopia (green-blind)
#9DB2E8
Tritanopia (blue-blind)
#00D4D3
Achromatopsia (no color)
#B9B9B9

Design tokens & code

CSS
--color: #3fc9e8;
/* rgb */ color: rgb(63, 201, 232);
/* oklch */ color: oklch(77.6% 0.122 216.3);
Tailwind
colors: {
  custom: {
    50: '#8bd9ef',
    500: '#3fc9e8',
    950: '#000000',
  },
}
SCSS
$custom: #3fc9e8;
$custom-light: #8bd9ef;
$custom-dark: #000000;
JSON
{
  "hex": "#3fc9e8",
  "rgb": {
    "r": 63,
    "g": 201,
    "b": 232
  },
  "hsl": {
    "h": 191.006,
    "s": 78.605,
    "l": 57.843
  },
  "oklch": {
    "l": 0.77592,
    "c": 0.12216,
    "h": 216.3
  },
  "luminance": 0.48656
}

Semantic roles & 50–950 ramp

primary
#3FC9E8
secondary
#E3ACA0
accent
#5633F5
background
#F9FDFE
surface
#F2FAFD
border
#CCD3D5
text
#0E1416
muted
#7E8384

Preview Lab

Preview with #3FC9E8

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

Preview Lab → · Contrast checker → · Palette generator →

#3FC9E8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva