#0000ff

blue

Color code information, RGB and HSL conversion values, WCAG accessibility contrast ratios, color harmonies, tints, and shades for #0000ff.

Color Swatch#0000FF

Best Text: White

The quick brown fox jumps over the lazy dog.

Sample typography preview rendered in #ffffff (white) text for optimal readability.

Color Values & Conversions

HEX#0000ff

RGBrgb(0, 0, 255)

HSLhsl(240, 100%, 50%)

CMYKcmyk(100%, 100%, 0%, 0%)

WCAG Contrast Ratios

Contrast evaluation under WCAG 2.1 standards. Normal text requires 4.5:1 (AA) or 7.0:1 (AAA). Large text (≥18pt or 14pt bold) requires 3.0:1 (AA) or 4.5:1 (AAA).

Against White8.59:1

White Text Preview

Normal AA:Pass

Normal AAA:Pass

Large AA:Pass

Large AAA:Pass

Against Black2.2:1

Black Text Preview

Normal AA:Fail

Normal AAA:Fail

Large AA:Fail

Large AAA:Fail

Color Harmonies

Complementary (180°)

Triadic (±120°)

Analogous (±30°)

#007fff-30°

#0000ffBase

#7f00ff+30°

Tints & Shades

Tints (Mixing toward White)

#2626ff+15%

#4d4dff+30%

#7373ff+45%

#9999ff+60%

#bfbfff+75%

Shades (Mixing toward Black)

#0000d9-15%

#0000b3-30%

#00008c-45%

#000066-60%

#000040-75%

Color Names

blueCSS Named Color

Also known as:

blue

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