#4282B4#4282B4

#4282B4 is a mid, moderate cyan. Relative luminance 0.204; OKLCH L 58.6% C 0.101 H 244.4°. Best body text is #000000 at 5.08:1 contrast (WCAG AA passes).

Color values

HEX#4282B4
RGBrgb(66, 130, 180)
HSLhsl(206, 46%, 48%)
HSVhsv(206, 63%, 71%)
CMYKcmyk(63.3%, 27.8%, 0%, 29.4%)
CIE-LABlab(52.31, -4.84, -32.45)
CIE-LCHlch(52.31, 32.81, 261.52°)
OKLaboklab(58.63% -0.0438 -0.0914)
OKLCHoklch(58.63% 0.101 244.4)
XYZxyz(18.4645, 20.4170, 46.1390)
Luminance0.2042 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4282B4 #B47442
analogous
#42B4AD #4282B4 #4249B4
triadic
#4282B4 #B44282 #82B442
tetradic
#4282B4 #AD42B4 #B47442 #49B442
square
#4282B4 #AD42B4 #B47442 #49B442
split-complementary
#4282B4 #B44249 #B4AD42
monochromatic
#21415A #326287 #4282B4 #6B9FC9 #97BCD9

Accessibility & contrast

On white

4.13
#4282B4 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.08
#4282B4 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4282B4
5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4282B4#FFFFFF#000000##000000
##4282B41.004.135.085.08
#FFFFFF4.131.0021.0021.00
#0000005.0821.001.001.00
##0000005.0821.001.001.00

Color blindness preview

Protanopia (red-blind)
#6C83B6
Deuteranopia (green-blind)
#5C78B3
Tritanopia (blue-blind)
#008E93
Achromatopsia (no color)
#7D7D7D

Design tokens & code

CSS
--color: #4282b4;
/* rgb */ color: rgb(66, 130, 180);
/* oklch */ color: oklch(58.6% 0.101 244.4);
Tailwind
colors: {
  custom: {
    50: '#81a6ca',
    500: '#4282b4',
    950: '#000000',
  },
}
SCSS
$custom: #4282b4;
$custom-light: #81a6ca;
$custom-dark: #000000;
JSON
{
  "hex": "#4282b4",
  "rgb": {
    "r": 66,
    "g": 130,
    "b": 180
  },
  "hsl": {
    "h": 206.316,
    "s": 46.341,
    "l": 48.235
  },
  "oklch": {
    "l": 0.58629,
    "c": 0.10133,
    "h": 244.4
  },
  "luminance": 0.20419
}

Semantic roles & 50–950 ramp

primary
#4282B4
secondary
#C5A58D
accent
#8C52D6
background
#F8FAFC
surface
#EFF4F8
border
#CACED1
text
#0B0F13
muted
#7C7F82

Preview Lab

Preview with #4282B4

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

Preview Lab → · Contrast checker → · Palette generator →

#4282B4 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva