#4289D5#4289D5

#4289D5 is a light, vivid cyan. Relative luminance 0.239; OKLCH L 62.0% C 0.136 H 252.2°. Best body text is #000000 at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#4289D5
RGB	rgb(66, 137, 213)
HSL	hsl(211, 64%, 55%)
HSV	hsv(211, 69%, 84%)
CMYK	cmyk(69%, 35.7%, 0%, 16.5%)
CIE-LAB	lab(55.94, 2.39, -45.50)
CIE-LCH	lch(55.94, 45.56, 273.01°)
OKLab	oklab(62.01% -0.0414 -0.1293)
OKLCH	oklch(62.01% 0.136 252.2)
XYZ	xyz(23.1982, 23.8512, 66.3190)
Luminance	0.2385 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4289D5 #D58E42

analogous

#42D3D5 #4289D5 #4442D5

triadic

#4289D5 #D54289 #89D542

tetradic

#4289D5 #D542D3 #D58E42 #42D544

square

#4289D5 #D542D3 #D58E42 #42D544

split-complementary

#4289D5 #D54442 #D3D542

monochromatic

#1C4D80 #286BB2 #4289D5 #74A8E0 #A6C8EB

Accessibility & contrast

On white

3.64

#4289D5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.77

#4289D5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4289D5

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4289D5	#FFFFFF	#000000	##000000
##4289D5	1.00	3.64	5.77	5.77
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.77	21.00	1.00	1.00
##000000	5.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#678ED8

Deuteranopia (green-blind)

#5280D3

Tritanopia (blue-blind)

#009BA5

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #4289d5;
/* rgb */ color: rgb(66, 137, 213);
/* oklch */ color: oklch(62.0% 0.136 252.2);

Tailwind

colors: {
  custom: {
    50: '#86abe2',
    500: '#4289d5',
    950: '#000000',
  },
}

SCSS

$custom: #4289d5;
$custom-light: #86abe2;
$custom-dark: #000000;

JSON

{
  "hex": "#4289d5",
  "rgb": {
    "r": 66,
    "g": 137,
    "b": 213
  },
  "hsl": {
    "h": 211.02,
    "s": 63.636,
    "l": 54.706
  },
  "oklch": {
    "l": 0.62008,
    "c": 0.13577,
    "h": 252.2
  },
  "luminance": 0.23854
}

Semantic roles & 50–950 ramp

primary

#4289D5

secondary

#D8BA9A

accent

#9741E7

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4289D5

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

Preview Lab → · Contrast checker → · Palette generator →