#4285BC#4285BC

#4285BC is a mid, moderate cyan. Relative luminance 0.216; OKLCH L 59.7% C 0.108 H 245.8°. Best body text is #000000 at 5.31:1 contrast (WCAG AA passes).

Color values

HEX	#4285BC
RGB	rgb(66, 133, 188)
HSL	hsl(207, 48%, 50%)
HSV	hsv(207, 65%, 74%)
CMYK	cmyk(64.9%, 29.3%, 0%, 26.3%)
CIE-LAB	lab(53.56, -3.88, -35.08)
CIE-LCH	lch(53.56, 35.29, 263.68°)
OKLab	oklab(59.74% -0.0445 -0.0989)
OKLCH	oklch(59.74% 0.108 245.8)
XYZ	xyz(19.7080, 21.5622, 50.6905)
Luminance	0.2156 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4285BC #BC7942

analogous

#42BCB6 #4285BC #4248BC

triadic

#4285BC #BC4285 #85BC42

tetradic

#4285BC #B642BC #BC7942 #48BC42

square

#4285BC #B642BC #BC7942 #48BC42

split-complementary

#4285BC #BC4248 #BCB642

monochromatic

#224561 #32658F #4285BC #6FA2CC #9CBFDC

Accessibility & contrast

On white

3.95

#4285BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.31

#4285BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4285BC

5.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4285BC	#FFFFFF	#000000	##000000
##4285BC	1.00	3.95	5.31	5.31
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.31	21.00	1.00	1.00
##000000	5.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D87BE

Deuteranopia (green-blind)

#5C7BBB

Tritanopia (blue-blind)

#009298

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4285bc;
/* rgb */ color: rgb(66, 133, 188);
/* oklch */ color: oklch(59.7% 0.108 245.8);

Tailwind

colors: {
  custom: {
    50: '#82a8d0',
    500: '#4285bc',
    950: '#000000',
  },
}

SCSS

$custom: #4285bc;
$custom-light: #82a8d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4285bc",
  "rgb": {
    "r": 66,
    "g": 133,
    "b": 188
  },
  "hsl": {
    "h": 207.049,
    "s": 48.031,
    "l": 49.804
  },
  "oklch": {
    "l": 0.5974,
    "c": 0.10849,
    "h": 245.8
  },
  "luminance": 0.21564
}

Semantic roles & 50–950 ramp

primary

#4285BC

secondary

#C9AA91

accent

#8D50D8

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #4285BC

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

Preview Lab → · Contrast checker → · Palette generator →