#3F9ECC#3F9ECC

#3F9ECC is a light, moderate cyan. Relative luminance 0.299; OKLCH L 66.3% C 0.111 H 233.1°. Best body text is #000000 at 6.97:1 contrast (WCAG AA passes).

Color values

HEX#3F9ECC
RGBrgb(63, 158, 204)
HSLhsl(200, 58%, 52%)
HSVhsv(200, 69%, 80%)
CMYKcmyk(69.1%, 22.5%, 0%, 20%)
CIE-LABlab(61.54, -13.13, -31.68)
CIE-LCHlch(61.54, 34.30, 247.49°)
OKLaboklab(66.27% -0.0667 -0.089)
OKLCHoklch(66.27% 0.111 233.1)
XYZxyz(25.1715, 29.8673, 61.5534)
Luminance0.2987 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F9ECC #CC6D3F
analogous
#3FCCB3 #3F9ECC #3F58CC
triadic
#3F9ECC #CC3F9E #9ECC3F
tetradic
#3F9ECC #B33FCC #CC6D3F #58CC3F
square
#3F9ECC #B33FCC #CC6D3F #58CC3F
split-complementary
#3F9ECC #CC3F58 #CCB33F
monochromatic
#1E5772 #2B7CA3 #3F9ECC #6FB6D9 #A0CFE6

Accessibility & contrast

On white

3.01
#3F9ECC on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.97
#3F9ECC on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F9ECC
6.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F9ECC#FFFFFF#000000##000000
##3F9ECC1.003.016.976.97
#FFFFFF3.011.0021.0021.00
#0000006.9721.001.001.00
##0000006.9721.001.001.00

Color blindness preview

Protanopia (red-blind)
#879CCE
Deuteranopia (green-blind)
#748ECB
Tritanopia (blue-blind)
#00AAAD
Achromatopsia (no color)
#959595

Design tokens & code

CSS
--color: #3f9ecc;
/* rgb */ color: rgb(63, 158, 204);
/* oklch */ color: oklch(66.3% 0.111 233.1);
Tailwind
colors: {
  custom: {
    50: '#84badb',
    500: '#3f9ecc',
    950: '#000000',
  },
}
SCSS
$custom: #3f9ecc;
$custom-light: #84badb;
$custom-dark: #000000;
JSON
{
  "hex": "#3f9ecc",
  "rgb": {
    "r": 63,
    "g": 158,
    "b": 204
  },
  "hsl": {
    "h": 199.574,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.6627,
    "c": 0.11123,
    "h": 233.1
  },
  "luminance": 0.2987
}

Semantic roles & 50–950 ramp

primary
#3F9ECC
secondary
#D2A995
accent
#7947E1
background
#F8FBFD
surface
#F0F6FB
border
#CBD0D4
text
#0C1115
muted
#7D8083

Preview Lab

Preview with #3F9ECC

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

Preview Lab → · Contrast checker → · Palette generator →

#3F9ECC Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva