#4290D2#4290D2

#4290D2 is a light, vivid cyan. Relative luminance 0.258; OKLCH L 63.4% C 0.126 H 247.0°. Best body text is #000000 at 6.15:1 contrast (WCAG AA passes).

Color values

HEX#4290D2
RGBrgb(66, 144, 210)
HSLhsl(208, 62%, 54%)
HSVhsv(208, 69%, 82%)
CMYKcmyk(68.6%, 31.4%, 0%, 17.6%)
CIE-LABlab(57.80, -2.76, -40.87)
CIE-LCHlch(57.80, 40.97, 266.14°)
OKLaboklab(63.42% -0.0491 -0.1157)
OKLCHoklch(63.42% 0.126 247)
XYZxyz(23.8485, 25.7554, 64.6747)
Luminance0.2576 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4290D2 #D28442
analogous
#42D2CC #4290D2 #4248D2
triadic
#4290D2 #D24290 #90D242
tetradic
#4290D2 #CC42D2 #D28442 #48D242
square
#4290D2 #CC42D2 #D28442 #48D242
split-complementary
#4290D2 #D24248 #D2CC42
monochromatic
#1E517C #2971AD #4290D2 #73ADDE #A5CAEA

Accessibility & contrast

On white

3.41
#4290D2 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

6.15
#4290D2 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4290D2
6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4290D2#FFFFFF#000000##000000
##4290D21.003.416.156.15
#FFFFFF3.411.0021.0021.00
#0000006.1521.001.001.00
##0000006.1521.001.001.00

Color blindness preview

Protanopia (red-blind)
#7292D5
Deuteranopia (green-blind)
#5E85D1
Tritanopia (blue-blind)
#00A0A7
Achromatopsia (no color)
#8B8B8B

Design tokens & code

CSS
--color: #4290d2;
/* rgb */ color: rgb(66, 144, 210);
/* oklch */ color: oklch(63.4% 0.126 247.0);
Tailwind
colors: {
  custom: {
    50: '#86b0e0',
    500: '#4290d2',
    950: '#000000',
  },
}
SCSS
$custom: #4290d2;
$custom-light: #86b0e0;
$custom-dark: #000000;
JSON
{
  "hex": "#4290d2",
  "rgb": {
    "r": 66,
    "g": 144,
    "b": 210
  },
  "hsl": {
    "h": 207.5,
    "s": 61.538,
    "l": 54.118
  },
  "oklch": {
    "l": 0.63424,
    "c": 0.12567,
    "h": 247
  },
  "luminance": 0.25758
}

Semantic roles & 50–950 ramp

primary
#4290D2
secondary
#D7B599
accent
#8D43E5
background
#F8FAFD
surface
#F0F4FB
border
#CBCED4
text
#0C1015
muted
#7D7F83

Preview Lab

Preview with #4290D2

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

Preview Lab → · Contrast checker → · Palette generator →

#4290D2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva