#3066B8#3066B8

#3066B8 is a mid, vivid blue. Relative luminance 0.136; OKLCH L 51.7% C 0.142 H 258.7°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#3066B8
RGB	rgb(48, 102, 184)
HSL	hsl(216, 59%, 45%)
HSV	hsv(216, 74%, 72%)
CMYK	cmyk(73.9%, 44.6%, 0%, 27.8%)
CIE-LAB	lab(43.64, 10.83, -48.53)
CIE-LCH	lch(43.64, 49.72, 282.58°)
OKLab	oklab(51.74% -0.0278 -0.139)
OKLCH	oklch(51.74% 0.142 258.7)
XYZ	xyz(14.6189, 13.5902, 47.1908)
Luminance	0.1359 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3066B8 #B88230

analogous

#30AAB8 #3066B8 #3E30B8

triadic

#3066B8 #B83066 #66B830

tetradic

#3066B8 #B830AA #B88230 #30B83E

square

#3066B8 #B830AA #B88230 #30B83E

split-complementary

#3066B8 #B83E30 #AAB830

monochromatic

#173057 #234B87 #3066B8 #5386D2 #84A8DF

Accessibility & contrast

On white

5.65

#3066B8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#3066B8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3066B8

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3066B8	#FFFFFF	#000000	##FFFFFF
##3066B8	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6EBB

Deuteranopia (green-blind)

#2261B6

Tritanopia (blue-blind)

#007986

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3066b8;
/* rgb */ color: rgb(48, 102, 184);
/* oklch */ color: oklch(51.7% 0.142 258.7);

Tailwind

colors: {
  custom: {
    50: '#7a91ce',
    500: '#3066b8',
    950: '#000000',
  },
}

SCSS

$custom: #3066b8;
$custom-light: #7a91ce;
$custom-dark: #000000;

JSON

{
  "hex": "#3066b8",
  "rgb": {
    "r": 48,
    "g": 102,
    "b": 184
  },
  "hsl": {
    "h": 216.176,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.51737,
    "c": 0.14171,
    "h": 258.7
  },
  "luminance": 0.13592
}

Semantic roles & 50–950 ramp

primary

#3066B8

secondary

#C8AA7C

accent

#A446E2

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0B0C13

muted

#7C7D82

Preview Lab

Preview with #3066B8

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

Preview Lab → · Contrast checker → · Palette generator →