#3997D4#3997D4

#3997D4 is a light, vivid cyan. Relative luminance 0.278; OKLCH L 64.8% C 0.126 H 241.3°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX#3997D4
RGBrgb(57, 151, 212)
HSLhsl(204, 64%, 53%)
HSVhsv(204, 73%, 83%)
CMYKcmyk(73.1%, 28.8%, 0%, 16.9%)
CIE-LABlab(59.67, -7.36, -39.09)
CIE-LCHlch(59.67, 39.78, 259.34°)
OKLaboklab(64.85% -0.0605 -0.1105)
OKLCHoklch(64.85% 0.126 241.3)
XYZxyz(24.6330, 27.7537, 66.3334)
Luminance0.2776 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3997D4 #D47639
analogous
#39D4C3 #3997D4 #3949D4
triadic
#3997D4 #D43997 #97D439
tetradic
#3997D4 #C339D4 #D47639 #49D439
square
#3997D4 #C339D4 #D47639 #49D439
split-complementary
#3997D4 #D43949 #D4C339
monochromatic
#1A5378 #2576AB #3997D4 #6BB1DF #9ECCEA

Accessibility & contrast

On white

3.21
#3997D4 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.55
#3997D4 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3997D4
6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3997D4#FFFFFF#000000##000000
##3997D41.003.216.556.55
#FFFFFF3.211.0021.0021.00
#0000006.5521.001.001.00
##0000006.5521.001.001.00

Color blindness preview

Protanopia (red-blind)
#7B98D7
Deuteranopia (green-blind)
#6589D3
Tritanopia (blue-blind)
#00A6AC
Achromatopsia (no color)
#909090

Design tokens & code

CSS
--color: #3997d4;
/* rgb */ color: rgb(57, 151, 212);
/* oklch */ color: oklch(64.8% 0.126 241.3);
Tailwind
colors: {
  custom: {
    50: '#83b5e1',
    500: '#3997d4',
    950: '#000000',
  },
}
SCSS
$custom: #3997d4;
$custom-light: #83b5e1;
$custom-dark: #000000;
JSON
{
  "hex": "#3997d4",
  "rgb": {
    "r": 57,
    "g": 151,
    "b": 212
  },
  "hsl": {
    "h": 203.613,
    "s": 64.315,
    "l": 52.745
  },
  "oklch": {
    "l": 0.64849,
    "c": 0.12599,
    "h": 241.3
  },
  "luminance": 0.27757
}

Semantic roles & 50–950 ramp

primary
#3997D4
secondary
#D6AD93
accent
#8240E7
background
#F8FBFD
surface
#F0F6FB
border
#CBD0D4
text
#0C1115
muted
#7D8083

Preview Lab

Preview with #3997D4

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

Preview Lab → · Contrast checker → · Palette generator →

#3997D4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva