#4289B2#4289B2

#4289B2 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.2% C 0.095 H 236.6°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX#4289B2
RGBrgb(66, 137, 178)
HSLhsl(202, 46%, 48%)
HSVhsv(202, 63%, 70%)
CMYKcmyk(62.9%, 23%, 0%, 30.2%)
CIE-LABlab(54.30, -9.53, -28.20)
CIE-LCHlch(54.30, 29.76, 251.33°)
OKLaboklab(60.18% -0.0521 -0.079)
OKLCHoklch(60.18% 0.095 236.6)
XYZxyz(19.2252, 22.2620, 45.3947)
Luminance0.2226 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#4289B2 #B26B42
analogous
#42B2A3 #4289B2 #4251B2
triadic
#4289B2 #B24289 #89B242
tetradic
#4289B2 #A342B2 #B26B42 #51B242
square
#4289B2 #A342B2 #B26B42 #51B242
split-complementary
#4289B2 #B24251 #B2A342
monochromatic
#214459 #316785 #4289B2 #6AA5C8 #96C0D8

Accessibility & contrast

On white

3.85
#4289B2 on #FFFFFF
AA ✗AA large ✓AAA ✗

On black

5.45
#4289B2 on #000000
AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4289B2
5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##4289B2#FFFFFF#000000##000000
##4289B21.003.855.455.45
#FFFFFF3.851.0021.0021.00
#0000005.4521.001.001.00
##0000005.4521.001.001.00

Color blindness preview

Protanopia (red-blind)
#7688B4
Deuteranopia (green-blind)
#667DB1
Tritanopia (blue-blind)
#009497
Achromatopsia (no color)
#828282

Design tokens & code

CSS
--color: #4289b2;
/* rgb */ color: rgb(66, 137, 178);
/* oklch */ color: oklch(60.2% 0.095 236.6);
Tailwind
colors: {
  custom: {
    50: '#81abc9',
    500: '#4289b2',
    950: '#000000',
  },
}
SCSS
$custom: #4289b2;
$custom-light: #81abc9;
$custom-dark: #000000;
JSON
{
  "hex": "#4289b2",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 178
  },
  "hsl": {
    "h": 201.964,
    "s": 45.902,
    "l": 47.843
  },
  "oklch": {
    "l": 0.60183,
    "c": 0.09466,
    "h": 236.6
  },
  "luminance": 0.22264
}

Semantic roles & 50–950 ramp

primary
#4289B2
secondary
#C4A08C
accent
#8252D6
background
#F8FAFC
surface
#EFF4F8
border
#CACED1
text
#0B1013
muted
#7C7F82

Preview Lab

Preview with #4289B2

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

Preview Lab → · Contrast checker → · Palette generator →

#4289B2 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva