#4285C9#4285C9

#4285C9 is a mid, vivid cyan. Relative luminance 0.222; OKLCH L 60.4% C 0.124 H 250.9°. Best body text is #000000 at 5.43:1 contrast (WCAG AA passes).

Color values

HEX	#4285C9
RGB	rgb(66, 133, 201)
HSL	hsl(210, 56%, 52%)
HSV	hsv(210, 67%, 79%)
CMYK	cmyk(67.2%, 33.8%, 0%, 21.2%)
CIE-LAB	lab(54.18, 0.58, -41.50)
CIE-LCH	lch(54.18, 41.50, 270.80°)
OKLab	oklab(60.44% -0.0407 -0.1176)
OKLCH	oklch(60.44% 0.124 250.9)
XYZ	xyz(21.1730, 22.1482, 58.4062)
Luminance	0.2215 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4285C9 #C98642

analogous

#42C9C9 #4285C9 #4242C9

triadic

#4285C9 #C94285 #85C942

tetradic

#4285C9 #C942C9 #C98642 #42C942

square

#4285C9 #C942C9 #C98642 #42C942

split-complementary

#4285C9 #C94242 #C9C942

monochromatic

#204870 #2E66A0 #4285C9 #72A4D7 #A1C2E4

Accessibility & contrast

On white

3.87

#4285C9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.43

#4285C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4285C9

5.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4285C9	#FFFFFF	#000000	##000000
##4285C9	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)

#6789CC

Deuteranopia (green-blind)

#547CC8

Tritanopia (blue-blind)

#00959E

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4285c9;
/* rgb */ color: rgb(66, 133, 201);
/* oklch */ color: oklch(60.4% 0.124 250.9);

Tailwind

colors: {
  custom: {
    50: '#84a8da',
    500: '#4285c9',
    950: '#000000',
  },
}

SCSS

$custom: #4285c9;
$custom-light: #84a8da;
$custom-dark: #000000;

JSON

{
  "hex": "#4285c9",
  "rgb": {
    "r": 66,
    "g": 133,
    "b": 201
  },
  "hsl": {
    "h": 210.222,
    "s": 55.556,
    "l": 52.353
  },
  "oklch": {
    "l": 0.60436,
    "c": 0.12448,
    "h": 250.9
  },
  "luminance": 0.2215
}

Semantic roles & 50–950 ramp

primary

#4285C9

secondary

#D1B496

accent

#9449DF

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4285C9

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

Preview Lab → · Contrast checker → · Palette generator →