#3990C7#3990C7

#3990C7 is a light, moderate cyan. Relative luminance 0.249; OKLCH L 62.6% C 0.117 H 240.3°. Best body text is #000000 at 5.99:1 contrast (WCAG AA passes).

Color values

HEX#3990C7
RGBrgb(57, 144, 199)
HSLhsl(203, 56%, 50%)
HSVhsv(203, 71%, 78%)
CMYKcmyk(71.4%, 27.6%, 0%, 22%)
CIE-LABlab(57.01, -7.88, -35.94)
CIE-LCHlch(57.01, 36.79, 257.63°)
OKLaboklab(62.55% -0.0579 -0.1014)
OKLCHoklch(62.55% 0.117 240.3)
XYZxyz(21.9654, 24.9374, 57.6775)
Luminance0.2494 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#3990C7 #C77039
analogous
#39C7B7 #3990C7 #3949C7
triadic
#3990C7 #C73990 #90C739
tetradic
#3990C7 #B739C7 #C77039 #49C739
square
#3990C7 #B739C7 #C77039 #49C739
split-complementary
#3990C7 #C73949 #C7B739
monochromatic
#1D4B68 #2B6E98 #3990C7 #69ABD4 #98C5E2

Accessibility & contrast

On white

3.51
#3990C7 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.99
#3990C7 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3990C7
5.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##3990C7#FFFFFF#000000##000000
##3990C71.003.515.995.99
#FFFFFF3.511.0021.0021.00
#0000005.9921.001.001.00
##0000005.9921.001.001.00

Color blindness preview

Protanopia (red-blind)
#7690C9
Deuteranopia (green-blind)
#6383C6
Tritanopia (blue-blind)
#009EA3
Achromatopsia (no color)
#898989

Design tokens & code

CSS
--color: #3990c7;
/* rgb */ color: rgb(57, 144, 199);
/* oklch */ color: oklch(62.6% 0.117 240.3);
Tailwind
colors: {
  custom: {
    50: '#81b0d8',
    500: '#3990c7',
    950: '#000000',
  },
}
SCSS
$custom: #3990c7;
$custom-light: #81b0d8;
$custom-dark: #000000;
JSON
{
  "hex": "#3990c7",
  "rgb": {
    "r": 57,
    "g": 144,
    "b": 199
  },
  "hsl": {
    "h": 203.239,
    "s": 55.906,
    "l": 50.196
  },
  "oklch": {
    "l": 0.62554,
    "c": 0.11679,
    "h": 240.3
  },
  "luminance": 0.2494
}

Semantic roles & 50–950 ramp

primary
#3990C7
secondary
#CEA78E
accent
#8349DF
background
#F8FAFD
surface
#F0F4FA
border
#CBCED3
text
#0C1014
muted
#7D7F83

Preview Lab

Preview with #3990C7

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

Preview Lab → · Contrast checker → · Palette generator →

#3990C7 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva