#4284DB#4284DB

#4284DB is a mid, vivid cyan. Relative luminance 0.228; OKLCH L 61.3% C 0.149 H 256.3°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#4284DB
RGB	rgb(66, 132, 219)
HSL	hsl(214, 68%, 56%)
HSV	hsv(214, 70%, 86%)
CMYK	cmyk(69.9%, 39.7%, 0%, 14.1%)
CIE-LAB	lab(54.84, 7.50, -50.62)
CIE-LCH	lch(54.84, 51.17, 278.43°)
OKLab	oklab(61.25% -0.0353 -0.1444)
OKLCH	oklch(61.25% 0.149 256.3)
XYZ	xyz(23.2795, 22.7728, 70.1728)
Luminance	0.2278 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4284DB #DB9942

analogous

#42D0DB #4284DB #4C42DB

triadic

#4284DB #DB4284 #84DB42

tetradic

#4284DB #DB42D0 #DB9942 #42DB4C

square

#4284DB #DB42D0 #DB9942 #42DB4C

split-complementary

#4284DB #DB4C42 #D0DB42

monochromatic

#1A4A89 #2465BC #4284DB #75A5E5 #A9C7EF

Accessibility & contrast

On white

3.78

#4284DB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#4284DB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4284DB

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4284DB	#FFFFFF	#000000	##000000
##4284DB	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5C8BDE

Deuteranopia (green-blind)

#447DD9

Tritanopia (blue-blind)

#0098A5

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4284db;
/* rgb */ color: rgb(66, 132, 219);
/* oklch */ color: oklch(61.3% 0.149 256.3);

Tailwind

colors: {
  custom: {
    50: '#87a7e6',
    500: '#4284db',
    950: '#000000',
  },
}

SCSS

$custom: #4284db;
$custom-light: #87a7e6;
$custom-dark: #000000;

JSON

{
  "hex": "#4284db",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 219
  },
  "hsl": {
    "h": 214.118,
    "s": 68,
    "l": 55.882
  },
  "oklch": {
    "l": 0.61252,
    "c": 0.14861,
    "h": 256.3
  },
  "luminance": 0.22775
}

Semantic roles & 50–950 ramp

primary

#4284DB

secondary

#DCC19D

accent

#A03DEB

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4284DB

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

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