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#3366FF Hex Code

Color Name: Ultramarine Blue

What is hex #3366FF Color?

Ultramarine Blue (Hex code: 3366FF) Thumbnail

The color name of hex code #3366FF is Ultramarine Blue. The RGB values are (51, 102, 255) which means it is composed of 13% red, 25% green and 63% blue. The CMYK color codes, used in printers, are C:80 M:60 Y:0 K:0. In the HSV/HSB scale, #3366FF has a hue of 225°, 80% saturation and a brightness value of 100%.
Details of other color codes including equivalent web safe and HTML & CSS colors are given in the table below. Also listed are the closest Pantone® (PMS) and RAL colors.

Download Ultramarine Blue Solid Color Background

Hex #3366FF Color Codes

Color NameUltramarine Blue
RGB Values(51, 102, 255)
CMYK Values(80%, 60%, 0%, 0%)
HSV/HSB Values(225°, 80%, 100%)
Closest Web Safe#3366FF
Inverse Color#CC9900 [Chinese Gold]
Closest Pantone®2727 C
Closest RAL5012 [Light blue]
Complementary Color#FFCC33 [Sunglow]
#3366FF Converted to Grayscale Codes
Simple Average#888888
Weighted Average (Most Common)#686868
Weighted Average (Luma)#666666
Weighted Average (Gamma Adjusted)#A4A4A4

Hex #3366FF Color Palettes

Complementary color palette of 3366FF. Complementary color is FFCC33

Complementary Palette

The complement of #3366FF is #FFCC33 which is called Sunglow. Complementary colors are those found at the opposite ends of the color wheel. Thus, as per the RGB system, the best contrast to #3366FF color is offered by #FFCC33. The complementary color palette is easiest to use and work with. Studies have shown that contrasting color palette is the best way to grab a viewer's attention.

3366FF FFCC33
Analogous color palette with (3366FF, 6633FF and 33CCFF)

Analogous Palette

The analogous colors of #3366FF are #6633FF and #33CCFF, called Han Purple and Spiro Disco Ball, respectively. In the RGB color wheel, they are located to the right and left of #3366FF with a 30° separation. An analogous color palette is extremely soothing to the eyes and works wonders if your main color is soft or pastel.

3366FF 6633FF 33CCFF
Split Complementary color palette with (3366FF, FF6633 and CCFF33)

Split-Complementary Palette

As per the RGB color wheel, the split-complementary colors of #3366FF are #FF6633 (Smashed Pumpkin) and #CCFF33 (Pear). A split-complementary color palette consists of the main color along with those on either side (30°) of the complementary color. Based on our research, usage of split-complementary palettes is on the rise online, especially in graphics and web sites designs. It may be because it is not as contrasting as the complementary color palette and, hence, results in a combination which is pleasant to the eyes.

3366FF FF6633 CCFF33
Triadic color palette with (3366FF, FF3366 and 66FF33)

Triadic Palette

#3366FF triadic color palette has three colors each of which is separated by 120° in the RGB wheel. Thus, #FF3366 (Radical Red) and #66FF33 (Spring Frost) along with #3366FF, our main color, create a stunning and beautiful triadic palette with the maximum variation in hue and, therefore, offering the best possible contrast when taken together.

3366FF FF3366 66FF33
Tetradic color palette with (3366FF, FF3366, FFCC33 and 33FFCC)

Tetradic Palette

The tetradic palette of #3366FF has #FF3366 (Radical Red), #FFCC33 (Sunglow) and #33FFCC (Turquoise). A tetradic color palette is complex and, in most cases, should not be used off-the-shelf. We suggest tweaking the colors a little bit to achieve desired results.

3366FF FF3366 FFCC33 33FFCC
Square color palette with (3366FF, FF33CC, FFCC33 and 33FF66)

Square Palette

The square color palette of #3366FF contains #FF33CC (Razzle Dazzle Rose), #FFCC33 (Sunglow) and #33FF66 (UFO Green). Quite like triadic, the hues in a square palette are at the maximum distance from each other, which is 90°.
Note: For several colors purposes, a square palette may look much better than the tetrad color palette.

3366FF FF33CC FFCC33 33FF66
Rainbow color

Hex #3366FF Rainbow Colors Palette

Our #3366FF rainbow color palette is based on the RGB color model and consists of 7 colors, just like the traditional rainbow. You might not see a lot of variation in color, especially if the chosen color is dark or extremely light. However, this can lead interesting rainbow palettes that are faded, soft, pastel or dull.

3366FF AF33FF FF33A0 FF7533 DBFF33 33FF3A 33FFE9

Tints, Tones & Shades of 3366FF Color


  • Transparent 5C85FF5C85FF
  • Transparent 7094FF7094FF
  • Transparent 85A3FF85A3FF
  • Transparent 99B3FF99B3FF
  • Transparent ADC2FFADC2FF
  • Transparent C2D1FFC2D1FF
  • Transparent D6E0FFD6E0FF
  • Transparent EBF0FFEBF0FF


  • Transparent 426BE6426BE6
  • Transparent 4A6ED94A6ED9
  • Transparent 5270CC5270CC
  • Transparent 5A73C05A73C0
  • Transparent 6176B36176B3
  • Transparent 6978A66978A6
  • Transparent 717B99717B99
  • Transparent 787D8D787D8D


  • Transparent 2952CC2952CC
  • Transparent 2447B32447B3
  • Transparent 1F3D991F3D99
  • Transparent 1A33801A3380
  • Transparent 142966142966
  • Transparent 0F1F4D0F1F4D
  • Transparent 0A14330A1433
  • Transparent 050A1A050A1A

#3366FF Color Patterns

  • transperent

    #3366FF Gingham Checks

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    #3366FF Vertical Stripes Pattern

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    #3366FF Polka Dots Pattern

  • transperent

    #3366FF Honeycomb Pattern

  • transperent

    #3366FF Leaves Pattern

  • transperent

    #3366FF Houndstooth Pattern

  • transperent

    #3366FF Trellis Pattern

  • transperent

    #3366FF Plaid Pattern

#3366FF Color Interior Ideas

Pretty Photo frame on Ultramarine Blue color drawing room interior textured wall

#3366FF Color Drawing Room Textured Wall Paint Idea

Pretty Photo frame on Ultramarine Blue color Living room wal color

#3366FF Color Living Room Wall Paint Idea

Pretty Photo frame on Ultramarine Blue color Bedroom interior wall color

#3366FF Color Bedroom Wall Paint Idea

Pretty Photo frame on Ultramarine Blue color kitchen interior wall color

#3366FF Color Kitchen Wall Paint Idea

Color names have been derived from known and trusted lists OR have been formulated by us. They are close approximations and may not translate to exact names. Also, color is perceived and named differently in cultures and communities around the world. As per studies, only a handful of colors are interpretted and named in the same way across the globe.