#3066B2#3066B2

#3066B2 is a mid, vivid blue. Relative luminance 0.133; OKLCH L 51.3% C 0.134 H 257.5°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#3066B2
RGB	rgb(48, 102, 178)
HSL	hsl(215, 58%, 44%)
HSV	hsv(215, 73%, 70%)
CMYK	cmyk(73%, 42.7%, 0%, 30.2%)
CIE-LAB	lab(43.28, 8.57, -45.60)
CIE-LCH	lch(43.28, 46.40, 280.65°)
OKLab	oklab(51.34% -0.029 -0.1304)
OKLCH	oklch(51.34% 0.134 257.5)
XYZ	xyz(14.0032, 13.3439, 43.9485)
Luminance	0.1335 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3066B2 #B27C30

analogous

#30A7B2 #3066B2 #3B30B2

triadic

#3066B2 #B23066 #66B230

tetradic

#3066B2 #B230A7 #B27C30 #30B23B

square

#3066B2 #B230A7 #B27C30 #30B23B

split-complementary

#3066B2 #B23B30 #A7B230

monochromatic

#162F52 #234A82 #3066B2 #5085D0 #80A6DD

Accessibility & contrast

On white

5.72

#3066B2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#3066B2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3066B2

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3066B2	#FFFFFF	#000000	##FFFFFF
##3066B2	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#416DB5

Deuteranopia (green-blind)

#2B61B0

Tritanopia (blue-blind)

#007883

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #3066b2;
/* rgb */ color: rgb(48, 102, 178);
/* oklch */ color: oklch(51.3% 0.134 257.5);

Tailwind

colors: {
  custom: {
    50: '#7991c9',
    500: '#3066b2',
    950: '#000000',
  },
}

SCSS

$custom: #3066b2;
$custom-light: #7991c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3066b2",
  "rgb": {
    "r": 48,
    "g": 102,
    "b": 178
  },
  "hsl": {
    "h": 215.077,
    "s": 57.522,
    "l": 44.314
  },
  "oklch": {
    "l": 0.5134,
    "c": 0.13354,
    "h": 257.5
  },
  "luminance": 0.13345
}

Semantic roles & 50–950 ramp

primary

#3066B2

secondary

#C6A578

accent

#A147E1

background

#F7F8FC

surface

#EEF0F8

border

#C9CBD1

text

#0A0C13

muted

#7C7D82

Preview Lab

Preview with #3066B2

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

Preview Lab → · Contrast checker → · Palette generator →