#4285D9#4285D9

#4285D9 is a mid, vivid cyan. Relative luminance 0.229; OKLCH L 61.4% C 0.145 H 255.3°. Best body text is #000000 at 5.59:1 contrast (WCAG AA passes).

Color values

HEX	#4285D9
RGB	rgb(66, 133, 217)
HSL	hsl(213, 67%, 55%)
HSV	hsv(213, 70%, 85%)
CMYK	cmyk(69.6%, 38.7%, 0%, 14.9%)
CIE-LAB	lab(55.01, 6.19, -49.22)
CIE-LCH	lch(55.01, 49.61, 277.17°)
OKLab	oklab(61.35% -0.0367 -0.1402)
OKLCH	oklch(61.35% 0.145 255.3)
XYZ	xyz(23.1541, 22.9406, 68.8399)
Luminance	0.2294 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4285D9 #D99642

analogous

#42D1D9 #4285D9 #4A42D9

triadic

#4285D9 #D94285 #85D942

tetradic

#4285D9 #D942D1 #D99642 #42D94A

square

#4285D9 #D942D1 #D99642 #42D94A

split-complementary

#4285D9 #D94A42 #D1D942

monochromatic

#1B4A86 #2567B9 #4285D9 #75A6E3 #A8C7ED

Accessibility & contrast

On white

3.76

#4285D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.59

#4285D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4285D9

5.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4285D9	#FFFFFF	#000000	##000000
##4285D9	1.00	3.76	5.59	5.59
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.59	21.00	1.00	1.00
##000000	5.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E8BDC

Deuteranopia (green-blind)

#477DD7

Tritanopia (blue-blind)

#0099A4

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4285d9;
/* rgb */ color: rgb(66, 133, 217);
/* oklch */ color: oklch(61.4% 0.145 255.3);

Tailwind

colors: {
  custom: {
    50: '#87a8e5',
    500: '#4285d9',
    950: '#000000',
  },
}

SCSS

$custom: #4285d9;
$custom-light: #87a8e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4285d9",
  "rgb": {
    "r": 66,
    "g": 133,
    "b": 217
  },
  "hsl": {
    "h": 213.377,
    "s": 66.52,
    "l": 55.49
  },
  "oklch": {
    "l": 0.61352,
    "c": 0.14495,
    "h": 255.3
  },
  "luminance": 0.22943
}

Semantic roles & 50–950 ramp

primary

#4285D9

secondary

#DBBF9C

accent

#9E3EE9

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #4285D9

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

Preview Lab → · Contrast checker → · Palette generator →