What color is #3399FF?

#3399FF is a vivid azure, closest to the named color Sky Dancer. It belongs to the blue family of colors.

What is the RGB value of #3399FF?

The RGB value is 51, 153, 255: 51 red, 153 green and 255 blue on a 0 to 255 scale.

What is the complementary color of #3399FF?

The complementary color is #FF9933, found by rotating the hue 180° on the color wheel.

Is black or white text better on #3399FF?

Black text. Black text has a contrast ratio of 7.14:1 and white text 2.94:1. WCAG asks for at least 4.5:1 for normal text.

#3399FF color

#3399FF rgb(51, 153, 255)

Shades of blue

The hex color #3399FF is a vivid azure.

In the RGB color model it is made of 20% red, 60% green and 100% blue (51, 153, 255).

Its hue angle is 210°, with 100% saturation and 60% lightness. For print, the CMYK equivalent is 80% cyan, 40% magenta, 0% yellow and 0% black.

The closest named color is Sky Dancer (#4499FF), a difference of 1.5 ΔE, which is barely visible.

Black text is the more readable choice on this background (contrast 7.14:1).

#3399FF color codes

HEX	`#3399FF`
RGB	`rgb(51, 153, 255)`
RGB percent	`rgb(20%, 60%, 100%)`
HSL	`hsl(210, 100%, 60%)`
HSV / HSB	`hsv(210, 80%, 100%)`
CMYK	`cmyk(80%, 40%, 0%, 0%)`
CIE LAB	`lab(62.26, 6.12, -58.76)`
CIE LCH	`lch(62.26, 59.08, 275.95)`
CIE XYZ	`xyz(30.8, 30.702, 98.891)`
Decimal	`3381759`
Short hex	`#39F`

Color harmonies

Colors that go with #3399FF, based on their position on the color wheel.

Complementary

The color opposite on the color wheel (180°). Strongest contrast.

Analogous

Neighbors 30° either side. Calm, natural combinations.

Split complementary

The two colors next to the complement (150° and 210°).

Triadic

Three colors evenly spaced, 120° apart.

Tetradic (square)

Four colors 90° apart.

Shades, tints and tones

Shades (darker, mixed with black)

Tints (lighter, mixed with white)

Tones (mixed with gray)

Contrast and accessibility

Text on #3399FF	Ratio	AA	AAA	AA large
Sample text	7.14:1	Pass	Pass	Pass
Sample text	2.94:1	Fail	Fail	Fail

#3399FF as text on	Ratio	AA	AAA	AA large
Sample text	2.94:1	Fail	Fail	Fail
Sample text	7.14:1	Pass	Pass	Pass

WCAG 2 asks for 4.5:1 for normal text (AA), 7:1 for AAA, and 3:1 for large text. Check other pairs.

Color blindness simulation

How #3399FF looks to people with the most common types of color vision deficiency.

CSS examples

.background { background-color: #3399ff; }
.text { color: #3399ff; }
.border { border: 2px solid #3399ff; }
.transparent { background-color: rgb(51 153 255 / 50%); }
.gradient { background: linear-gradient(to right, #3399ff, #3333ff); }

Background

Text color

Border

Similar colors

Questions

What color is #3399FF?: #3399FF is a vivid azure, closest to the named color Sky Dancer. It belongs to the blue family of colors.
What is the RGB value of #3399FF?: The RGB value is 51, 153, 255: 51 red, 153 green and 255 blue on a 0 to 255 scale.
What is the complementary color of #3399FF?: The complementary color is #FF9933, found by rotating the hue 180° on the color wheel.
Is black or white text better on #3399FF?: Black text. Black text has a contrast ratio of 7.14:1 and white text 2.94:1. WCAG asks for at least 4.5:1 for normal text.