#4285B1#4285B1

#4285B1 is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 59.2% C 0.096 H 239.9°. Best body text is #000000 at 5.22:1 contrast (WCAG AA passes).

Color values

HEX	#4285B1
RGB	rgb(66, 133, 177)
HSL	hsl(204, 46%, 48%)
HSV	hsv(204, 63%, 69%)
CMYK	cmyk(62.7%, 24.9%, 0%, 30.6%)
CIE-LAB	lab(53.07, -7.58, -29.55)
CIE-LCH	lch(53.07, 30.50, 255.61°)
OKLab	oklab(59.19% -0.0481 -0.0829)
OKLCH	oklch(59.19% 0.096 239.9)
XYZ	xyz(18.5671, 21.1058, 44.6818)
Luminance	0.2111 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4285B1 #B16E42

analogous

#42B1A6 #4285B1 #424DB1

triadic

#4285B1 #B14285 #85B142

tetradic

#4285B1 #A642B1 #B16E42 #4DB142

square

#4285B1 #A642B1 #B16E42 #4DB142

split-complementary

#4285B1 #B1424D #B1A642

monochromatic

#214258 #316484 #4285B1 #69A2C7 #96BED8

Accessibility & contrast

On white

4.02

#4285B1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.22

#4285B1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4285B1

5.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4285B1	#FFFFFF	#000000	##000000
##4285B1	1.00	4.02	5.22	5.22
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.22	21.00	1.00	1.00
##000000	5.22	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7185B3

Deuteranopia (green-blind)

#627AB0

Tritanopia (blue-blind)

#009094

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4285b1;
/* rgb */ color: rgb(66, 133, 177);
/* oklch */ color: oklch(59.2% 0.096 239.9);

Tailwind

colors: {
  custom: {
    50: '#81a8c8',
    500: '#4285b1',
    950: '#000000',
  },
}

SCSS

$custom: #4285b1;
$custom-light: #81a8c8;
$custom-dark: #000000;

JSON

{
  "hex": "#4285b1",
  "rgb": {
    "r": 66,
    "g": 133,
    "b": 177
  },
  "hsl": {
    "h": 203.784,
    "s": 45.679,
    "l": 47.647
  },
  "oklch": {
    "l": 0.59186,
    "c": 0.09587,
    "h": 239.9
  },
  "luminance": 0.21108
}

Semantic roles & 50–950 ramp

primary

#4285B1

secondary

#C3A28B

accent

#8652D5

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #4285B1

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

Preview Lab → · Contrast checker → · Palette generator →