#3F8CD8#3F8CD8

#3F8CD8 is a light, vivid cyan. Relative luminance 0.248; OKLCH L 62.7% C 0.138 H 250.7°. Best body text is #000000 at 5.95:1 contrast (WCAG AA passes).

Color values

HEX#3F8CD8
RGBrgb(63, 140, 216)
HSLhsl(210, 66%, 55%)
HSVhsv(210, 71%, 85%)
CMYKcmyk(70.8%, 35.2%, 0%, 15.3%)
CIE-LABlab(56.85, 1.22, -45.75)
CIE-LCHlch(56.85, 45.77, 271.53°)
OKLaboklab(62.74% -0.0455 -0.13)
OKLCHoklch(62.74% 0.138 250.7)
XYZxyz(23.8180, 24.7682, 68.4779)
Luminance0.2477 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3F8CD8 #D88B3F
analogous
#3FD8D8 #3F8CD8 #3F40D8
triadic
#3F8CD8 #D83F8C #8CD83F
tetradic
#3F8CD8 #D83FD8 #D88B3F #40D83F
square
#3F8CD8 #D83FD8 #D88B3F #40D83F
split-complementary
#3F8CD8 #D83F40 #D8D83F
monochromatic
#1A4F82 #256DB5 #3F8CD8 #72AAE2 #A5C9ED

Accessibility & contrast

On white

3.53
#3F8CD8 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.95
#3F8CD8 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F8CD8
5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3F8CD8#FFFFFF#000000##000000
##3F8CD81.003.535.955.95
#FFFFFF3.531.0021.0021.00
#0000005.9521.001.001.00
##0000005.9521.001.001.00

Color blindness preview

Protanopia (red-blind)
#6A90DB
Deuteranopia (green-blind)
#5382D7
Tritanopia (blue-blind)
#009EA8
Achromatopsia (no color)
#888888

Design tokens & code

CSS
--color: #3f8cd8;
/* rgb */ color: rgb(63, 140, 216);
/* oklch */ color: oklch(62.7% 0.138 250.7);
Tailwind
colors: {
  custom: {
    50: '#86ade4',
    500: '#3f8cd8',
    950: '#000000',
  },
}
SCSS
$custom: #3f8cd8;
$custom-light: #86ade4;
$custom-dark: #000000;
JSON
{
  "hex": "#3f8cd8",
  "rgb": {
    "r": 63,
    "g": 140,
    "b": 216
  },
  "hsl": {
    "h": 209.804,
    "s": 66.234,
    "l": 54.706
  },
  "oklch": {
    "l": 0.62743,
    "c": 0.13774,
    "h": 250.7
  },
  "luminance": 0.24771
}

Semantic roles & 50–950 ramp

primary
#3F8CD8
secondary
#DAB999
accent
#933FE9
background
#F8FAFE
surface
#F0F4FC
border
#CBCED5
text
#0C1015
muted
#7D7F84

Preview Lab

Preview with #3F8CD8

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

Preview Lab → · Contrast checker → · Palette generator →

#3F8CD8 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva