#4283D4#4283D4

#4283D4 is a mid, vivid cyan. Relative luminance 0.221; OKLCH L 60.6% C 0.141 H 255.2°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#4283D4
RGB	rgb(66, 131, 212)
HSL	hsl(213, 63%, 55%)
HSV	hsv(213, 69%, 83%)
CMYK	cmyk(68.9%, 38.2%, 0%, 16.9%)
CIE-LAB	lab(54.18, 5.63, -47.73)
CIE-LCH	lch(54.18, 48.06, 276.73°)
OKLab	oklab(60.62% -0.0359 -0.1359)
OKLCH	oklch(60.62% 0.141 255.2)
XYZ	xyz(22.2424, 22.1420, 65.3762)
Luminance	0.2214 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4283D4 #D49342

analogous

#42CCD4 #4283D4 #4A42D4

triadic

#4283D4 #D44283 #83D442

tetradic

#4283D4 #D442CC #D49342 #42D44A

square

#4283D4 #D442CC #D49342 #42D44A

split-complementary

#4283D4 #D44A42 #CCD442

monochromatic

#1D487F #2865B1 #4283D4 #74A4DF #A6C4EB

Accessibility & contrast

On white

3.87

#4283D4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#4283D4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4283D4

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4283D4	#FFFFFF	#000000	##000000
##4283D4	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)

#5E89D7

Deuteranopia (green-blind)

#487BD2

Tritanopia (blue-blind)

#0096A1

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4283d4;
/* rgb */ color: rgb(66, 131, 212);
/* oklch */ color: oklch(60.6% 0.141 255.2);

Tailwind

colors: {
  custom: {
    50: '#86a6e1',
    500: '#4283d4',
    950: '#000000',
  },
}

SCSS

$custom: #4283d4;
$custom-light: #86a6e1;
$custom-dark: #000000;

JSON

{
  "hex": "#4283d4",
  "rgb": {
    "r": 66,
    "g": 131,
    "b": 212
  },
  "hsl": {
    "h": 213.288,
    "s": 62.931,
    "l": 54.51
  },
  "oklch": {
    "l": 0.60616,
    "c": 0.14057,
    "h": 255.2
  },
  "luminance": 0.22144
}

Semantic roles & 50–950 ramp

primary

#4283D4

secondary

#D8BC9A

accent

#9D42E6

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4283D4

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

Preview Lab → · Contrast checker → · Palette generator →