#3FA3D9#3FA3D9

#3FA3D9 is a light, vivid cyan. Relative luminance 0.323; OKLCH L 68.1% C 0.121 H 236.3°. Best body text is #000000 at 7.45:1 contrast (WCAG AA passes).

Color values

HEX#3FA3D9
RGBrgb(63, 163, 217)
HSLhsl(201, 67%, 55%)
HSVhsv(201, 71%, 85%)
CMYKcmyk(71%, 24.9%, 0%, 14.9%)
CIE-LABlab(63.56, -11.54, -35.78)
CIE-LCHlch(63.56, 37.59, 252.12°)
OKLaboklab(68.05% -0.0672 -0.1008)
OKLCHoklch(68.05% 0.121 236.3)
XYZxyz(27.6665, 32.2578, 70.4005)
Luminance0.3226 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3FA3D9 #D9753F
analogous
#3FD9C2 #3FA3D9 #3F56D9
triadic
#3FA3D9 #D93FA3 #A3D93F
tetradic
#3FA3D9 #C23FD9 #D9753F #56D93F
square
#3FA3D9 #C23FD9 #D9753F #56D93F
split-complementary
#3FA3D9 #D93F56 #D9C23F
monochromatic
#1A5F84 #2483B7 #3FA3D9 #72BBE3 #A5D4ED

Accessibility & contrast

On white

2.82
#3FA3D9 on #FFFFFF
AA ✗AA large ✗AAA ✗

On black

7.45
#3FA3D9 on #000000
AA ✓AA large ✓AAA ✓

Best text color

#000000 on #3FA3D9
7.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3FA3D9#FFFFFF#000000##000000
##3FA3D91.002.827.457.45
#FFFFFF2.821.0021.0021.00
#0000007.4521.001.001.00
##0000007.4521.001.001.00

Color blindness preview

Protanopia (red-blind)
#89A2DC
Deuteranopia (green-blind)
#7493D8
Tritanopia (blue-blind)
#00B1B5
Achromatopsia (no color)
#9A9A9A

Design tokens & code

CSS
--color: #3fa3d9;
/* rgb */ color: rgb(63, 163, 217);
/* oklch */ color: oklch(68.1% 0.121 236.3);
Tailwind
colors: {
  custom: {
    50: '#87bee5',
    500: '#3fa3d9',
    950: '#000000',
  },
}
SCSS
$custom: #3fa3d9;
$custom-light: #87bee5;
$custom-dark: #000000;
JSON
{
  "hex": "#3fa3d9",
  "rgb": {
    "r": 63,
    "g": 163,
    "b": 217
  },
  "hsl": {
    "h": 201.039,
    "s": 66.957,
    "l": 54.902
  },
  "oklch": {
    "l": 0.68054,
    "c": 0.12112,
    "h": 236.3
  },
  "luminance": 0.32261
}

Semantic roles & 50–950 ramp

primary
#3FA3D9
secondary
#DAB09A
accent
#7A3EEA
background
#F9FBFE
surface
#F1F6FC
border
#CBD0D5
text
#0D1215
muted
#7E8184

Preview Lab

Preview with #3FA3D9

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

Preview Lab → · Contrast checker → · Palette generator →

#3FA3D9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva