#4284D8#4284D8

#4284D8 is a mid, vivid cyan. Relative luminance 0.226; OKLCH L 61.1% C 0.145 H 255.6°. Best body text is #000000 at 5.52:1 contrast (WCAG AA passes).

Color values

HEX	#4284D8
RGB	rgb(66, 132, 216)
HSL	hsl(214, 66%, 55%)
HSV	hsv(214, 69%, 85%)
CMYK	cmyk(69.4%, 38.9%, 0%, 15.3%)
CIE-LAB	lab(54.67, 6.44, -49.19)
CIE-LCH	lch(54.67, 49.61, 277.46°)
OKLab	oklab(61.07% -0.036 -0.1402)
OKLCH	oklch(61.07% 0.145 255.6)
XYZ	xyz(22.8882, 22.6162, 68.1116)
Luminance	0.2262 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4284D8 #D89642

analogous

#42CFD8 #4284D8 #4B42D8

triadic

#4284D8 #D84284 #84D842

tetradic

#4284D8 #D842CF #D89642 #42D84B

square

#4284D8 #D842CF #D89642 #42D84B

split-complementary

#4284D8 #D84B42 #CFD842

monochromatic

#1B4984 #2666B7 #4284D8 #75A5E2 #A7C6ED

Accessibility & contrast

On white

3.80

#4284D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.52

#4284D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4284D8

5.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4284D8	#FFFFFF	#000000	##000000
##4284D8	1.00	3.80	5.52	5.52
#FFFFFF	3.80	1.00	21.00	21.00
#000000	5.52	21.00	1.00	1.00
##000000	5.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5D8ADB

Deuteranopia (green-blind)

#467CD6

Tritanopia (blue-blind)

#0098A3

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4284d8;
/* rgb */ color: rgb(66, 132, 216);
/* oklch */ color: oklch(61.1% 0.145 255.6);

Tailwind

colors: {
  custom: {
    50: '#87a7e4',
    500: '#4284d8',
    950: '#000000',
  },
}

SCSS

$custom: #4284d8;
$custom-light: #87a7e4;
$custom-dark: #000000;

JSON

{
  "hex": "#4284d8",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 216
  },
  "hsl": {
    "h": 213.6,
    "s": 65.789,
    "l": 55.294
  },
  "oklch": {
    "l": 0.61073,
    "c": 0.14471,
    "h": 255.6
  },
  "luminance": 0.22619
}

Semantic roles & 50–950 ramp

primary

#4284D8

secondary

#DABF9C

accent

#9E3FE9

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F15

muted

#7D7F84

Preview Lab

Preview with #4284D8

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

Preview Lab → · Contrast checker → · Palette generator →