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#377AFC Hex Code

Color Name: Ultramarine Blue

What is hex #377AFC Color?

Ultramarine Blue (Hex code: 377AFC) Thumbnail

The color name of hex code #377AFC is Ultramarine Blue. The RGB values are (55, 122, 252) which means it is composed of 13% red, 28% green and 59% blue. The CMYK color codes, used in printers, are C:78 M:52 Y:0 K:1. In the HSV/HSB scale, #377AFC has a hue of 220°, 78% saturation and a brightness value of 99%.
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 #377AFC Color Codes

Color NameUltramarine Blue
RGB Values(55, 122, 252)
CMYK Values(78%, 52%, 0%, 1%)
HSV/HSB Values(220°, 78%, 99%)
Closest Web Safe#3366FF
Inverse Color#C88503 [Mustard Brown]
Closest Pantone®2727 C
Closest RAL5012 [Light blue]
Complementary Color#FCB937 [Saffron]
#377AFC Converted to Grayscale Codes
Simple Average#8F8F8F
Weighted Average (Most Common)#747474
Weighted Average (Luma)#757575
Weighted Average (Gamma Adjusted)#AFAFAF

Hex #377AFC Color Palettes

Complementary color palette of 377AFC. Complementary color is FCB937

Complementary Palette

The complement of #377AFC is #FCB937 which is called Saffron. Complementary colors are those found at the opposite ends of the color wheel. Thus, as per the RGB system, the best contrast to #377AFC color is offered by #FCB937. 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.

377AFC FCB937
Analogous color palette with (377AFC, 5637FC and 37DDFC)

Analogous Palette

The analogous colors of #377AFC are #5637FC and #37DDFC, called Han Purple and Fluorescent Blue, respectively. In the RGB color wheel, they are located to the right and left of #377AFC 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.

377AFC 5637FC 37DDFC
Split Complementary color palette with (377AFC, FC5737 and DDFC37)

Split-Complementary Palette

As per the RGB color wheel, the split-complementary colors of #377AFC are #FC5737 (Portland Orange) and #DDFC37 (Maximum Yellow). 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.

377AFC FC5737 DDFC37
Triadic color palette with (377AFC, FC377A and 7AFC37)

Triadic Palette

#377AFC triadic color palette has three colors each of which is separated by 120° in the RGB wheel. Thus, #FC377A (Sasquatch Socks) and #7AFC37 (Spring Frost) along with #377AFC, 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.

377AFC FC377A 7AFC37
Tetradic color palette with (377AFC, FC377A, FCB937 and 37FCB9)

Tetradic Palette

The tetradic palette of #377AFC has #FC377A (Sasquatch Socks), #FCB937 (Saffron) and #37FCB9 (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.

377AFC FC377A FCB937 37FCB9
Square color palette with (377AFC, FC37DD, FCB937 and 37FC57)

Square Palette

The square color palette of #377AFC contains #FC37DD (Razzle Dazzle Rose), #FCB937 (Saffron) and #37FC57 (Screamin' 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.

377AFC FC37DD FCB937 37FC57
Rainbow color

Hex #377AFC Rainbow Colors Palette

Our #377AFC 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.

3779FC 9E37FC FC37B1 FC6637 E9FC37 40FC37 37FCD6

Tints, Tones & Shades of 377AFC Color


  • Transparent 5F95FD5F95FD
  • Transparent 73A2FD73A2FD
  • Transparent 87AFFD87AFFD
  • Transparent 9BBDFE9BBDFE
  • Transparent AFCAFEAFCAFE
  • Transparent C3D7FEC3D7FE
  • Transparent D7E4FED7E4FE
  • Transparent EBF2FFEBF2FF


  • Transparent 467BE3467BE3
  • Transparent 4D7CD74D7CD7
  • Transparent 547CCA547CCA
  • Transparent 5C7DBE5C7DBE
  • Transparent 637EB2637EB2
  • Transparent 6A7EA56A7EA5
  • Transparent 717F99717F99
  • Transparent 797F8C797F8C


  • Transparent 2C62CA2C62CA
  • Transparent 2755B02755B0
  • Transparent 214997214997
  • Transparent 1C3D7E1C3D7E
  • Transparent 163165163165
  • Transparent 11254C11254C
  • Transparent 0B18320B1832
  • Transparent 060C19060C19

#377AFC Color Patterns

  • transperent

    #377AFC Gingham Checks

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    #377AFC Vertical Stripes Pattern

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    #377AFC Polka Dots Pattern

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    #377AFC Honeycomb Pattern

  • transperent

    #377AFC Leaves Pattern

  • transperent

    #377AFC Houndstooth Pattern

  • transperent

    #377AFC Trellis Pattern

  • transperent

    #377AFC Plaid Pattern

#377AFC Color Interior Ideas

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

#377AFC Color Drawing Room Textured Wall Paint Idea

Pretty Photo frame on Ultramarine Blue color Living room wal color

#377AFC Color Living Room Wall Paint Idea

Pretty Photo frame on Ultramarine Blue color Bedroom interior wall color

#377AFC Color Bedroom Wall Paint Idea

Pretty Photo frame on Ultramarine Blue color kitchen interior wall color

#377AFC 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.