#4284CC#4284CC

#4284CC is a mid, vivid cyan. Relative luminance 0.220; OKLCH L 60.4% C 0.129 H 252.5°. Best body text is #000000 at 5.40:1 contrast (WCAG AA passes).

Color values

HEX	#4284CC
RGB	rgb(66, 132, 204)
HSL	hsl(211, 58%, 53%)
HSV	hsv(211, 68%, 80%)
CMYK	cmyk(67.6%, 35.3%, 0%, 20%)
CIE-LAB	lab(54.05, 2.22, -43.41)
CIE-LCH	lch(54.05, 43.47, 272.93°)
OKLab	oklab(60.38% -0.0389 -0.1232)
OKLCH	oklch(60.38% 0.129 252.5)
XYZ	xyz(21.3931, 22.0182, 60.2375)
Luminance	0.2202 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4284CC #CC8A42

analogous

#42C9CC #4284CC #4542CC

triadic

#4284CC #CC4284 #84CC42

tetradic

#4284CC #CC42C9 #CC8A42 #42CC45

square

#4284CC #CC42C9 #CC8A42 #42CC45

split-complementary

#4284CC #CC4542 #C9CC42

monochromatic

#1F4874 #2C66A4 #4284CC #72A3D9 #A2C3E6

Accessibility & contrast

On white

3.89

#4284CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.40

#4284CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4284CC

5.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4284CC	#FFFFFF	#000000	##000000
##4284CC	1.00	3.89	5.40	5.40
#FFFFFF	3.89	1.00	21.00	21.00
#000000	5.40	21.00	1.00	1.00
##000000	5.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6488CF

Deuteranopia (green-blind)

#507BCB

Tritanopia (blue-blind)

#00959E

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4284cc;
/* rgb */ color: rgb(66, 132, 204);
/* oklch */ color: oklch(60.4% 0.129 252.5);

Tailwind

colors: {
  custom: {
    50: '#85a7dc',
    500: '#4284cc',
    950: '#000000',
  },
}

SCSS

$custom: #4284cc;
$custom-light: #85a7dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4284cc",
  "rgb": {
    "r": 66,
    "g": 132,
    "b": 204
  },
  "hsl": {
    "h": 211.304,
    "s": 57.5,
    "l": 52.941
  },
  "oklch": {
    "l": 0.60377,
    "c": 0.12924,
    "h": 252.5
  },
  "luminance": 0.2202
}

Semantic roles & 50–950 ramp

primary

#4284CC

secondary

#D3B697

accent

#9747E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4284CC

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

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