Information about #00303B color

#00303B color image

Basic facts about this digital color

In the Register's classification, #00303B belongs to the Cyan Color Family, featuring Full Saturation and Dark brightness. In numbers: rgb(0, 48, 59) (0% red, 18.8% green, 23.1% blue), or CMYK 23 / 4 / 0 / 77 for print. New to color codes? See our guide to RGB color codes.

A maximally vivid cyan, #00303B leans clearly toward the dark side. Designers typically reach for tones like this for dark UI themes, backgrounds and dramatic accents. In The Official Register of Color Names it is practically indistinguishable from Enchanted Teal (#002D39). Its next-closest registered neighbors are Loch Ness (#072F37) and Daintree (#012731).

In RGB terms — rgb(0, 48, 59) — the blue channel does the heavy lifting here. Accessibility-wise, white text works best on #00303B: 14.1:1 contrast (passing WCAG AAA) versus 1.5:1 for black. For print, note the heavy black component (K:77) — ink coverage matters with tones this deep. Out of 16,777,216 possible colors, #00303B is still unnamed — it can be claimed and named in The Official Register of Color Names.

#00303B color variations

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

#00303B 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 #00303B

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

Loch Ness color link
Loch Ness

#072F37

Daintree color link
Daintree

#012731

City Limits color link
City Limits

#0C3A37

Diablo color link
Diablo

#00374A

Rich Black color link
Rich Black

#004040

Tobias Blue color link
Tobias Blue

#0C2C47

Titans Navy color link
Titans Navy

#0C2340

Oxford Blue color link
Oxford Blue

#002147

Warm Black color link
Warm Black

#004242

Conversions between color systems and etc.

  • HEX#00303B
  • RGB0, 48, 59
  • CMYK23, 4, 0, 77
  • CSSrgb(0, 48, 59)
  • HSL191°, 100%, 12%
  • HSL Precise191.186°, 100%, 11.569%
  • HSV191°, 100%, 23%
  • HSB191°, 100%, 23%
  • Normalized R (0.0–1.0)0.000
  • Normalized G (0.0–1.0)0.188
  • Normalized B (0.0–1.0)0.231
  • GLSLvec3(0.000, 0.188, 0.231)
  • GLSL with alphavec4(0.000, 0.188, 0.231, 1.000)
  • HLSL / Metalfloat3(0.000, 0.188, 0.231)
  • Percentage of Red in RGB0%
  • Percentage of Green in RGB18.8%
  • Percentage of Blue in RGB23.1%
  • Color FamilyCyan
  • Saturation FamilyFull Saturation
  • Lightness FamilyDark
  • HEX ID00303B
  • DECIMAL ID12347
  • Name LengthThis color has no name
  • Seen by search & AI crawlers21 times
  • Counting from2025-01-01