#4289D6#4289D6

#4289D6 is a light, vivid cyan. Relative luminance 0.239; OKLCH L 62.1% C 0.137 H 252.5°. Best body text is #000000 at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#4289D6
RGB	rgb(66, 137, 214)
HSL	hsl(211, 64%, 55%)
HSV	hsv(211, 69%, 84%)
CMYK	cmyk(69.2%, 36%, 0%, 16.1%)
CIE-LAB	lab(55.99, 2.74, -45.98)
CIE-LCH	lch(55.99, 46.06, 273.41°)
OKLab	oklab(62.07% -0.0412 -0.1307)
OKLCH	oklch(62.07% 0.137 252.5)
XYZ	xyz(23.3255, 23.9021, 66.9896)
Luminance	0.2391 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4289D6 #D68F42

analogous

#42D3D6 #4289D6 #4542D6

triadic

#4289D6 #D64289 #89D642

tetradic

#4289D6 #D642D3 #D68F42 #42D645

square

#4289D6 #D642D3 #D68F42 #42D645

split-complementary

#4289D6 #D64542 #D3D642

monochromatic

#1C4D82 #276BB4 #4289D6 #74A8E1 #A7C8EC

Accessibility & contrast

On white

3.63

#4289D6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.78

#4289D6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4289D6

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4289D6	#FFFFFF	#000000	##000000
##4289D6	1.00	3.63	5.78	5.78
#FFFFFF	3.63	1.00	21.00	21.00
#000000	5.78	21.00	1.00	1.00
##000000	5.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#668ED9

Deuteranopia (green-blind)

#5180D4

Tritanopia (blue-blind)

#009BA5

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #4289d6;
/* rgb */ color: rgb(66, 137, 214);
/* oklch */ color: oklch(62.1% 0.137 252.5);

Tailwind

colors: {
  custom: {
    50: '#87abe3',
    500: '#4289d6',
    950: '#000000',
  },
}

SCSS

$custom: #4289d6;
$custom-light: #87abe3;
$custom-dark: #000000;

JSON

{
  "hex": "#4289d6",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 214
  },
  "hsl": {
    "h": 211.216,
    "s": 64.348,
    "l": 54.902
  },
  "oklch": {
    "l": 0.62065,
    "c": 0.13703,
    "h": 252.5
  },
  "luminance": 0.23905
}

Semantic roles & 50–950 ramp

primary

#4289D6

secondary

#D9BB9B

accent

#9740E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0D1015

muted

#7D7F83

Preview Lab

Preview with #4289D6

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

Preview Lab → · Contrast checker → · Palette generator →