#4284CF#4284CF

#4284CF is a mid, vivid cyan. Relative luminance 0.222; OKLCH L 60.5% C 0.133 H 253.4°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#4284CF
RGB	rgb(66, 132, 207)
HSL	hsl(212, 59%, 54%)
HSV	hsv(212, 68%, 81%)
CMYK	cmyk(68.1%, 36.2%, 0%, 18.8%)
CIE-LAB	lab(54.20, 3.27, -44.87)
CIE-LCH	lch(54.20, 44.99, 274.17°)
OKLab	oklab(60.55% -0.0381 -0.1275)
OKLCH	oklch(60.55% 0.133 253.4)
XYZ	xyz(21.7564, 22.1635, 62.1508)
Luminance	0.2217 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4284CF #CF8D42

analogous

#42CACF #4284CF #4642CF

triadic

#4284CF #CF4284 #84CF42

tetradic

#4284CF #CF42CA #CF8D42 #42CF46

square

#4284CF #CF42CA #CF8D42 #42CF46

split-complementary

#4284CF #CF4642 #CACF42

monochromatic

#1F4878 #2B66A9 #4284CF #73A4DB #A4C4E8

Accessibility & contrast

On white

3.87

#4284CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#4284CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4284CF

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4284CF	#FFFFFF	#000000	##000000
##4284CF	1.00	3.87	5.43	5.43
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.43	21.00	1.00	1.00
##000000	5.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6289D2

Deuteranopia (green-blind)

#4E7CCD

Tritanopia (blue-blind)

#0095A0

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4284cf;
/* rgb */ color: rgb(66, 132, 207);
/* oklch */ color: oklch(60.5% 0.133 253.4);

Tailwind

colors: {
  custom: {
    50: '#85a7de',
    500: '#4284cf',
    950: '#000000',
  },
}

SCSS

$custom: #4284cf;
$custom-light: #85a7de;
$custom-dark: #000000;

JSON

{
  "hex": "#4284cf",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 207
  },
  "hsl": {
    "h": 211.915,
    "s": 59.494,
    "l": 53.529
  },
  "oklch": {
    "l": 0.60548,
    "c": 0.13309,
    "h": 253.4
  },
  "luminance": 0.22166
}

Semantic roles & 50–950 ramp

primary

#4284CF

secondary

#D5B898

accent

#9945E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4284CF

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

Preview Lab → · Contrast checker → · Palette generator →