#4284DD#4284DD

#4284DD is a mid, vivid cyan. Relative luminance 0.229; OKLCH L 61.4% C 0.151 H 256.7°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#4284DD
RGB	rgb(66, 132, 221)
HSL	hsl(214, 70%, 56%)
HSV	hsv(214, 70%, 87%)
CMYK	cmyk(70.1%, 40.3%, 0%, 13.3%)
CIE-LAB	lab(54.95, 8.21, -51.57)
CIE-LCH	lch(54.95, 52.22, 279.05°)
OKLab	oklab(61.37% -0.0348 -0.1471)
OKLCH	oklch(61.37% 0.151 256.7)
XYZ	xyz(23.5444, 22.8787, 71.5678)
Luminance	0.2288 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4284DD #DD9B42

analogous

#42D1DD #4284DD #4E42DD

triadic

#4284DD #DD4284 #84DD42

tetradic

#4284DD #DD42D1 #DD9B42 #42DD4E

square

#4284DD #DD42D1 #DD9B42 #42DD4E

split-complementary

#4284DD #DD4E42 #D1DD42

monochromatic

#194A8C #2265BF #4284DD #76A6E6 #AAC8F0

Accessibility & contrast

On white

3.77

#4284DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#4284DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4284DD

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4284DD	#FFFFFF	#000000	##000000
##4284DD	1.00	3.77	5.58	5.58
#FFFFFF	3.77	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A8BE1

Deuteranopia (green-blind)

#427DDB

Tritanopia (blue-blind)

#0099A6

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4284dd;
/* rgb */ color: rgb(66, 132, 221);
/* oklch */ color: oklch(61.4% 0.151 256.7);

Tailwind

colors: {
  custom: {
    50: '#88a7e8',
    500: '#4284dd',
    950: '#000000',
  },
}

SCSS

$custom: #4284dd;
$custom-light: #88a7e8;
$custom-dark: #000000;

JSON

{
  "hex": "#4284dd",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 221
  },
  "hsl": {
    "h": 214.452,
    "s": 69.507,
    "l": 56.275
  },
  "oklch": {
    "l": 0.61373,
    "c": 0.15121,
    "h": 256.7
  },
  "luminance": 0.22881
}

Semantic roles & 50–950 ramp

primary

#4284DD

secondary

#DDC29D

accent

#A13BEC

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4284DD

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

Preview Lab → · Contrast checker → · Palette generator →