#4285BB#4285BB

#4285BB is a mid, moderate cyan. Relative luminance 0.215; OKLCH L 59.7% C 0.107 H 245.3°. Best body text is #000000 at 5.30:1 contrast (WCAG AA passes).

Color values

HEX	#4285BB
RGB	rgb(66, 133, 187)
HSL	hsl(207, 48%, 50%)
HSV	hsv(207, 65%, 73%)
CMYK	cmyk(64.7%, 28.9%, 0%, 26.7%)
CIE-LAB	lab(53.51, -4.22, -34.58)
CIE-LCH	lch(53.51, 34.84, 263.04°)
OKLab	oklab(59.69% -0.0448 -0.0975)
OKLCH	oklch(59.69% 0.107 245.3)
XYZ	xyz(19.6006, 21.5192, 50.1247)
Luminance	0.2152 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4285BB #BB7842

analogous

#42BBB5 #4285BB #4249BB

triadic

#4285BB #BB4285 #85BB42

tetradic

#4285BB #B542BB #BB7842 #49BB42

square

#4285BB #B542BB #BB7842 #49BB42

split-complementary

#4285BB #BB4249 #BBB542

monochromatic

#224561 #32658E #4285BB #6EA2CC #9CBFDC

Accessibility & contrast

On white

3.96

#4285BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.30

#4285BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4285BB

5.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4285BB	#FFFFFF	#000000	##000000
##4285BB	1.00	3.96	5.30	5.30
#FFFFFF	3.96	1.00	21.00	21.00
#000000	5.30	21.00	1.00	1.00
##000000	5.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D86BD

Deuteranopia (green-blind)

#5D7BBA

Tritanopia (blue-blind)

#009298

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4285bb;
/* rgb */ color: rgb(66, 133, 187);
/* oklch */ color: oklch(59.7% 0.107 245.3);

Tailwind

colors: {
  custom: {
    50: '#82a8cf',
    500: '#4285bb',
    950: '#000000',
  },
}

SCSS

$custom: #4285bb;
$custom-light: #82a8cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4285bb",
  "rgb": {
    "r": 66,
    "g": 133,
    "b": 187
  },
  "hsl": {
    "h": 206.777,
    "s": 47.826,
    "l": 49.608
  },
  "oklch": {
    "l": 0.59688,
    "c": 0.1073,
    "h": 245.3
  },
  "luminance": 0.21521
}

Semantic roles & 50–950 ramp

primary

#4285BB

secondary

#C8A991

accent

#8D50D7

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #4285BB

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

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