#4390D9#4390D9

#4390D9 is a light, vivid cyan. Relative luminance 0.262; OKLCH L 63.8% C 0.134 H 249.7°. Best body text is #000000 at 6.23:1 contrast (WCAG AA passes).

Color values

HEX#4390D9
RGBrgb(67, 144, 217)
HSLhsl(209, 66%, 56%)
HSVhsv(209, 69%, 85%)
CMYKcmyk(69.1%, 33.6%, 0%, 14.9%)
CIE-LABlab(58.18, -0.19, -44.21)
CIE-LCHlch(58.18, 44.21, 269.75°)
OKLaboklab(63.84% -0.0465 -0.1254)
OKLCHoklch(63.84% 0.134 249.7)
XYZxyz(24.8077, 26.1469, 69.3716)
Luminance0.2615 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4390D9 #D98C43
analogous
#43D9D7 #4390D9 #4345D9
triadic
#4390D9 #D94390 #90D943
tetradic
#4390D9 #D743D9 #D98C43 #45D943
square
#4390D9 #D743D9 #D98C43 #45D943
split-complementary
#4390D9 #D94345 #D9D743
monochromatic
#1B5286 #2571B9 #4390D9 #76AEE3 #A9CCEE

Accessibility & contrast

On white

3.37
#4390D9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.23
#4390D9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4390D9
6.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4390D9#FFFFFF#000000##000000
##4390D91.003.376.236.23
#FFFFFF3.371.0021.0021.00
#0000006.2321.001.001.00
##0000006.2321.001.001.00

Color blindness preview

Protanopia (red-blind)
#6F94DC
Deuteranopia (green-blind)
#5A85D8
Tritanopia (blue-blind)
#00A1AA
Achromatopsia (no color)
#8C8C8C

Design tokens & code

CSS
--color: #4390d9;
/* rgb */ color: rgb(67, 144, 217);
/* oklch */ color: oklch(63.8% 0.134 249.7);
Tailwind
colors: {
  custom: {
    50: '#88b0e5',
    500: '#4390d9',
    950: '#000000',
  },
}
SCSS
$custom: #4390d9;
$custom-light: #88b0e5;
$custom-dark: #000000;
JSON
{
  "hex": "#4390d9",
  "rgb": {
    "r": 67,
    "g": 144,
    "b": 217
  },
  "hsl": {
    "h": 209.2,
    "s": 66.372,
    "l": 55.686
  },
  "oklch": {
    "l": 0.63837,
    "c": 0.13373,
    "h": 249.7
  },
  "luminance": 0.2615
}

Semantic roles & 50–950 ramp

primary
#4390D9
secondary
#DBBB9D
accent
#923FE9
background
#F9FAFE
surface
#F1F4FC
border
#CBCED5
text
#0D1016
muted
#7E7F84

Preview Lab

Preview with #4390D9

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

Preview Lab → · Contrast checker → · Palette generator →

#4390D9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva