#3066B5#3066B5

#3066B5 is a mid, vivid blue. Relative luminance 0.135; OKLCH L 51.5% C 0.138 H 258.1°. Best body text is #FFFFFF at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#3066B5
RGB	rgb(48, 102, 181)
HSL	hsl(216, 58%, 45%)
HSV	hsv(216, 73%, 71%)
CMYK	cmyk(73.5%, 43.6%, 0%, 29%)
CIE-LAB	lab(43.46, 9.70, -47.07)
CIE-LCH	lch(43.46, 48.06, 281.64°)
OKLab	oklab(51.54% -0.0284 -0.1347)
OKLCH	oklch(51.54% 0.138 258.1)
XYZ	xyz(14.3077, 13.4657, 45.5522)
Luminance	0.1347 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3066B5 #B57F30

analogous

#30A9B5 #3066B5 #3C30B5

triadic

#3066B5 #B53066 #66B530

tetradic

#3066B5 #B530A9 #B57F30 #30B53C

square

#3066B5 #B530A9 #B57F30 #30B53C

split-complementary

#3066B5 #B53C30 #A9B530

monochromatic

#162F54 #234B85 #3066B5 #5185D1 #82A7DE

Accessibility & contrast

On white

5.69

#3066B5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#3066B5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3066B5

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3066B5	#FFFFFF	#000000	##FFFFFF
##3066B5	1.00	5.69	3.69	5.69
#FFFFFF	5.69	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F6DB8

Deuteranopia (green-blind)

#2761B3

Tritanopia (blue-blind)

#007984

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3066b5;
/* rgb */ color: rgb(48, 102, 181);
/* oklch */ color: oklch(51.5% 0.138 258.1);

Tailwind

colors: {
  custom: {
    50: '#7a91cc',
    500: '#3066b5',
    950: '#000000',
  },
}

SCSS

$custom: #3066b5;
$custom-light: #7a91cc;
$custom-dark: #000000;

JSON

{
  "hex": "#3066b5",
  "rgb": {
    "r": 48,
    "g": 102,
    "b": 181
  },
  "hsl": {
    "h": 215.639,
    "s": 58.079,
    "l": 44.902
  },
  "oklch": {
    "l": 0.51537,
    "c": 0.13762,
    "h": 258.1
  },
  "luminance": 0.13467
}

Semantic roles & 50–950 ramp

primary

#3066B5

secondary

#C7A87A

accent

#A246E1

background

#F8F8FC

surface

#EFF0F9

border

#CACBD2

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3066B5

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

Preview Lab → · Contrast checker → · Palette generator →