#3066B4#3066B4

#3066B4 is a mid, vivid blue. Relative luminance 0.134; OKLCH L 51.5% C 0.136 H 257.9°. Best body text is #FFFFFF at 5.70:1 contrast (WCAG AA passes).

Color values

HEX	#3066B4
RGB	rgb(48, 102, 180)
HSL	hsl(215, 58%, 45%)
HSV	hsv(215, 73%, 71%)
CMYK	cmyk(73.3%, 43.3%, 0%, 29.4%)
CIE-LAB	lab(43.40, 9.32, -46.58)
CIE-LCH	lch(43.40, 47.51, 281.32°)
OKLab	oklab(51.47% -0.0286 -0.1332)
OKLCH	oklch(51.47% 0.136 257.9)
XYZ	xyz(14.2055, 13.4248, 45.0138)
Luminance	0.1343 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3066B4 #B47E30

analogous

#30A8B4 #3066B4 #3C30B4

triadic

#3066B4 #B43066 #66B430

tetradic

#3066B4 #B430A8 #B47E30 #30B43C

square

#3066B4 #B430A8 #B47E30 #30B43C

split-complementary

#3066B4 #B43C30 #A8B430

monochromatic

#162F53 #234B84 #3066B4 #5185D1 #81A7DD

Accessibility & contrast

On white

5.70

#3066B4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.69

#3066B4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3066B4

5.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3066B4	#FFFFFF	#000000	##FFFFFF
##3066B4	1.00	5.70	3.69	5.70
#FFFFFF	5.70	1.00	21.00	1.00
#000000	3.69	21.00	1.00	21.00
##FFFFFF	5.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#406DB7

Deuteranopia (green-blind)

#2861B2

Tritanopia (blue-blind)

#007884

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #3066b4;
/* rgb */ color: rgb(48, 102, 180);
/* oklch */ color: oklch(51.5% 0.136 257.9);

Tailwind

colors: {
  custom: {
    50: '#7991cb',
    500: '#3066b4',
    950: '#000000',
  },
}

SCSS

$custom: #3066b4;
$custom-light: #7991cb;
$custom-dark: #000000;

JSON

{
  "hex": "#3066b4",
  "rgb": {
    "r": 48,
    "g": 102,
    "b": 180
  },
  "hsl": {
    "h": 215.455,
    "s": 57.895,
    "l": 44.706
  },
  "oklch": {
    "l": 0.51471,
    "c": 0.13627,
    "h": 257.9
  },
  "luminance": 0.13426
}

Semantic roles & 50–950 ramp

primary

#3066B4

secondary

#C6A779

accent

#A247E1

background

#F8F8FC

surface

#EFF0F8

border

#CACBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3066B4

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

Preview Lab → · Contrast checker → · Palette generator →