#4290CE#4290CE

#4290CE is a light, vivid cyan. Relative luminance 0.256; OKLCH L 63.2% C 0.121 H 245.4°. Best body text is #000000 at 6.11:1 contrast (WCAG AA passes).

Color values

HEX#4290CE
RGBrgb(66, 144, 206)
HSLhsl(207, 59%, 53%)
HSVhsv(207, 68%, 81%)
CMYKcmyk(68%, 30.1%, 0%, 19.2%)
CIE-LABlab(57.62, -4.13, -38.92)
CIE-LCHlch(57.62, 39.14, 263.94°)
OKLaboklab(63.21% -0.0503 -0.11)
OKLCHoklch(63.21% 0.121 245.4)
XYZxyz(23.3564, 25.5585, 62.0829)
Luminance0.2556 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4290CE #CE8042
analogous
#42CEC6 #4290CE #424ACE
triadic
#4290CE #CE4290 #90CE42
tetradic
#4290CE #C642CE #CE8042 #4ACE42
square
#4290CE #C642CE #CE8042 #4ACE42
split-complementary
#4290CE #CE424A #CEC642
monochromatic
#1F5077 #2B70A7 #4290CE #73ADDB #A3C9E7

Accessibility & contrast

On white

3.44
#4290CE on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.11
#4290CE on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290CE
6.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4290CE#FFFFFF#000000##000000
##4290CE1.003.446.116.11
#FFFFFF3.441.0021.0021.00
#0000006.1121.001.001.00
##0000006.1121.001.001.00

Color blindness preview

Protanopia (red-blind)
#7492D1
Deuteranopia (green-blind)
#6184CD
Tritanopia (blue-blind)
#009FA6
Achromatopsia (no color)
#8A8A8A

Design tokens & code

CSS
--color: #4290ce;
/* rgb */ color: rgb(66, 144, 206);
/* oklch */ color: oklch(63.2% 0.121 245.4);
Tailwind
colors: {
  custom: {
    50: '#85b0dd',
    500: '#4290ce',
    950: '#000000',
  },
}
SCSS
$custom: #4290ce;
$custom-light: #85b0dd;
$custom-dark: #000000;
JSON
{
  "hex": "#4290ce",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 206
  },
  "hsl": {
    "h": 206.571,
    "s": 58.824,
    "l": 53.333
  },
  "oklch": {
    "l": 0.63214,
    "c": 0.12095,
    "h": 245.4
  },
  "luminance": 0.25561
}

Semantic roles & 50–950 ramp

primary
#4290CE
secondary
#D4B298
accent
#8B46E2
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #4290CE

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

Preview Lab → · Contrast checker → · Palette generator →

#4290CE Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva