#4285CB#4285CB

#4285CB is a mid, vivid cyan. Relative luminance 0.222; OKLCH L 60.5% C 0.127 H 251.6°. Best body text is #000000 at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#4285CB
RGB	rgb(66, 133, 203)
HSL	hsl(211, 57%, 53%)
HSV	hsv(211, 67%, 80%)
CMYK	cmyk(67.5%, 34.5%, 0%, 20.4%)
CIE-LAB	lab(54.28, 1.28, -42.47)
CIE-LCH	lch(54.28, 42.49, 271.72°)
OKLab	oklab(60.55% -0.0401 -0.1205)
OKLCH	oklch(60.55% 0.127 251.6)
XYZ	xyz(21.4098, 22.2429, 59.6533)
Luminance	0.2225 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4285CB #CB8842

analogous

#42C9CB #4285CB #4442CB

triadic

#4285CB #CB4285 #85CB42

tetradic

#4285CB #CB42C9 #CB8842 #42CB44

square

#4285CB #CB42C9 #CB8842 #42CB44

split-complementary

#4285CB #CB4442 #C9CB42

monochromatic

#204873 #2D67A3 #4285CB #72A4D8 #A2C3E5

Accessibility & contrast

On white

3.85

#4285CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.45

#4285CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4285CB

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4285CB	#FFFFFF	#000000	##000000
##4285CB	1.00	3.85	5.45	5.45
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.45	21.00	1.00	1.00
##000000	5.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6689CE

Deuteranopia (green-blind)

#537CCA

Tritanopia (blue-blind)

#00959E

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4285cb;
/* rgb */ color: rgb(66, 133, 203);
/* oklch */ color: oklch(60.5% 0.127 251.6);

Tailwind

colors: {
  custom: {
    50: '#85a8db',
    500: '#4285cb',
    950: '#000000',
  },
}

SCSS

$custom: #4285cb;
$custom-light: #85a8db;
$custom-dark: #000000;

JSON

{
  "hex": "#4285cb",
  "rgb": {
    "r": 66,
    "g": 133,
    "b": 203
  },
  "hsl": {
    "h": 210.657,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.60547,
    "c": 0.127,
    "h": 251.6
  },
  "luminance": 0.22245
}

Semantic roles & 50–950 ramp

primary

#4285CB

secondary

#D2B597

accent

#9648E0

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4285CB

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

Preview Lab → · Contrast checker → · Palette generator →