Blue Color — HEX, RGB, HSL & CMYK Codes

#0000ff
Format Value
HEX #0000ff
RGB rgb(0, 0, 255)
HSL hsl(240, 100%, 50%)
CMYK cmyk(100%, 100%, 0%, 0%)
HSV hsv(240, 100%, 100%)

blue color harmonies

Tints & shades of blue

Tints (lighter)

#1717ff #2e2eff #4646ff #5d5dff #7474ff #8b8bff #a2a2ff #b9b9ff #d1d1ff #e8e8ff

Shades (darker)

#0000e8 #0000d1 #0000b9 #0000a2 #00008b #000074 #00005d #000046 #00002e #000017

Contrast & accessibility

The quick brown fox

On white · 8.59:1 · AAA

The quick brown fox

On black · 2.44:1 · Fail

Recommended text color: #ffffff

Use blue in code

CSS color: #0000ff;
SCSS $color: #0000ff;
Tailwind bg-[#0000ff]
Swift UIColor(red: 0.000, green: 0.000, blue: 1.000, alpha: 1)
Android Color.parseColor("#0000ff")
Flutter Color(0xFF0000FF)

Colors similar to blue

Browse all Blue colors →

What is the HEX code for blue?

The CSS color blue in HEX format is #0000ff. Use this value directly in CSS, SVG, and most design tools.

How do I use blue in CSS?

To apply blue in CSS:

  • Text color: color: #0000ff;
  • Background: background-color: #0000ff;
  • Border: border-color: #0000ff;

What are all the color format values for blue?

FormatValue
HEX#0000ff
RGBrgb(0, 0, 255)
HSLhsl(240, 100%, 50%)
CMYKcmyk(100%, 100%, 0%, 0%)

How do I convert blue to HEX?

Select blue from the color name list in our color converter. The HEX value — #0000ff — appears instantly alongside HEX, RGB, HSL and CMYK.

What color family does blue belong to?

blue belongs to the blue color family. It is a medium, vivid color with HSL values: hue 240°, saturation 100%, lightness 50%.

How do I create lighter and darker shades of blue?

Lighter variant (lightness 65%): #4d4dff. Darker variant (lightness 35%): #0000b3. These values are computed by adjusting HSL lightness ±15% while keeping the same hue and saturation.

What is HEX used for?

HEX color codes are used in CSS, HTML and design tools. They encode red, green and blue as two hexadecimal digits each (00–FF), forming a compact 6-character code like #ff0000.