#4284D9#4284D9

#4284D9 is a mid, vivid cyan. Relative luminance 0.227; OKLCH L 61.1% C 0.146 H 255.8°. Best body text is #000000 at 5.53:1 contrast (WCAG AA passes).

Color values

HEX#4284D9
RGBrgb(66, 132, 217)
HSLhsl(214, 67%, 55%)
HSVhsv(214, 70%, 85%)
CMYKcmyk(69.6%, 39.2%, 0%, 14.9%)
CIE-LABlab(54.73, 6.79, -49.67)
CIE-LCHlch(54.73, 50.13, 277.79°)
OKLaboklab(61.13% -0.0357 -0.1416)
OKLCHoklch(61.13% 0.146 255.8)
XYZxyz(23.0178, 22.6681, 68.7945)
Luminance0.2267 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4284D9 #D99742
analogous
#42CFD9 #4284D9 #4B42D9
triadic
#4284D9 #D94284 #84D942
tetradic
#4284D9 #D942CF #D99742 #42D94B
square
#4284D9 #D942CF #D99742 #42D94B
split-complementary
#4284D9 #D94B42 #CFD942
monochromatic
#1B4A86 #2566B9 #4284D9 #75A5E3 #A8C6ED

Accessibility & contrast

On white

3.79
#4284D9 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.53
#4284D9 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4284D9
5.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4284D9#FFFFFF#000000##000000
##4284D91.003.795.535.53
#FFFFFF3.791.0021.0021.00
#0000005.5321.001.001.00
##0000005.5321.001.001.00

Color blindness preview

Protanopia (red-blind)
#5D8BDC
Deuteranopia (green-blind)
#467DD7
Tritanopia (blue-blind)
#0098A4
Achromatopsia (no color)
#838383

Design tokens & code

CSS
--color: #4284d9;
/* rgb */ color: rgb(66, 132, 217);
/* oklch */ color: oklch(61.1% 0.146 255.8);
Tailwind
colors: {
  custom: {
    50: '#87a7e5',
    500: '#4284d9',
    950: '#000000',
  },
}
SCSS
$custom: #4284d9;
$custom-light: #87a7e5;
$custom-dark: #000000;
JSON
{
  "hex": "#4284d9",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 217
  },
  "hsl": {
    "h": 213.775,
    "s": 66.52,
    "l": 55.49
  },
  "oklch": {
    "l": 0.61132,
    "c": 0.14601,
    "h": 255.8
  },
  "luminance": 0.22671
}

Semantic roles & 50–950 ramp

primary
#4284D9
secondary
#DBBF9C
accent
#9F3EE9
background
#F8FAFE
surface
#F0F4FC
border
#CBCED5
text
#0D0F16
muted
#7D7F84

Preview Lab

Preview with #4284D9

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

Preview Lab → · Contrast checker → · Palette generator →

#4284D9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva