Information about #2121AB color

#2121AB color image

Basic facts about this digital color

The digital color #2121AB is classified in the Register under the Blue Color Family, with High Saturation and Light brightness. Its exact recipe is rgb(33, 33, 171) — 12.9% red, 12.9% green, 67.1% blue — and for print it converts to CMYK 54 / 54 / 0 / 33. Curious how these numbers work? Read our RGB color codes guide.

A energetic, saturated blue, #2121AB sits on the lighter side of the spectrum. Expect to see shades like this in logos, highlights and anything that needs to be noticed first. In The Official Register of Color Names it is a near neighbor of Samsung Blue (#12279E). Nearby in the Register you will also find NELLE (#332299) and Egyptian Blue (#1034A6).

Technically, the mix leans on its blue channel (rgb(33, 33, 171)), which gives #2121AB its character. On this background, white text reaches a 11.2:1 contrast ratio (passing WCAG AAA); black stays at 1.9:1. No one has named #2121AB so far. Register a name for it and it becomes a permanent record.

#2121AB color variations

View this color variations of tints, shades, tones and hues.

#2121AB color harmonies

Color harmonies are pleasing color schemes created according to their position on a color wheel.

Complementary

Complementary color schemes are made by picking two opposite colors con the color wheel. They appear vibrant near to each other.

Complementary color schemes

Split complementary

Split complementary schemes are like complementary but they uses two adiacent colors of the complement. They are more flexible than complementary ones.

Split complementary color scheme

Analogous

Analogous color schemes are made by picking three colors that are next to each other on the color wheel. They are perceived as calm and serene.

Analogous color scheme

Triadic

Triadic color schemes are created by picking three colors equally spaced on the color wheel. They appear quite contrasted and multicolored.

Triadic color scheme

Tetradic

Tetradic color schemes are made form two couples of complementary colors in a rectangular shape on the color wheel.

Tetradic color scheme

Square

Square color schemes are like tetradic arranged in a square instead of rectangle. Colors appear even more contrasting.

Square color scheme

Nearest named colors to #2121AB

The closest officially registered color names in the Register, ordered by similarity — your shade’s neighborhood is already being claimed.

Samsung Blue color link
Samsung Blue

#12279E

NELLE color link
NELLE

#332299

Indigo Blue color link
Indigo Blue

#3A18B1

Taylor Blue color link
Taylor Blue

#111398

Persian Blue color link
Persian Blue

#1C39BB

Trypan Blue color link
Trypan Blue

#1C05B3

Luxury Blue color link
Luxury Blue

#1F2B8F

Mager Blue color link
Mager Blue

#0514B3

Royal color link
Royal

#0C1793

Conversions between color systems and etc.

  • HEX#2121AB
  • RGB33, 33, 171
  • CMYK54, 54, 0, 33
  • CSSrgb(33, 33, 171)
  • HSL240°, 68%, 40%
  • HSL Precise240°, 67.647%, 40%
  • HSV240°, 81%, 67%
  • HSB240°, 81%, 67%
  • Normalized R (0.0–1.0)0.129
  • Normalized G (0.0–1.0)0.129
  • Normalized B (0.0–1.0)0.671
  • GLSLvec3(0.129, 0.129, 0.671)
  • GLSL with alphavec4(0.129, 0.129, 0.671, 1.000)
  • HLSL / Metalfloat3(0.129, 0.129, 0.671)
  • Percentage of Red in RGB12.9%
  • Percentage of Green in RGB12.9%
  • Percentage of Blue in RGB67.1%
  • Color FamilyBlue
  • Saturation FamilyHigh Saturation
  • Lightness FamilyLight
  • HEX ID2121AB
  • DECIMAL ID2171307
  • Name LengthThis color has no name
  • Seen by search & AI crawlers10 times
  • Counting from2025-01-01