Pure Blue Color Code: #0203E2, RGB & HSL

Pure Blue color values

HEX #0203E2

RGB rgb(2, 3, 226)

HSL hsl(240, 98%, 45%)

HSV 240, 99%, 89%

HWB hwb(240 1% 11%)

CMYK 99%, 99%, 0%, 11%

Decimal 132066

45%HSL lightness (medium-dark)

98%HSL saturation (vivid)

240°Hue angle (blue)

0.056Relative luminance

CMYK is a standard screen-to-print conversion. Printed results depend on inks, paper and color profiles.

What is Pure Blue?

“Pure Blue” is a crowd-sourced name from the XKCD Color Survey, in which participants typed names for colors they were shown. It is a popular everyday label rather than an official standard.

Its hue angle of 240° places it in the blue part of the color wheel, with 98% saturation (vivid) and 45% lightness (medium-dark). It is a cool color.

Compared with the other blue colors in the Aqeeb Studio library, it is lighter than 46% of them and more saturated than 71% of them.

Its relative luminance is 0.056, which makes it a dark color. That is below the 0.179 crossover point at which black and white text have equal contrast, so white text has the advantage.

Pure Blue counts as a dark color: its HSL lightness is 45% and its relative luminance is 0.056. White text reads comfortably on it (9.93:1 contrast).

Text contrast on Pure Blue

WCAG contrast of white and black text on Pure Blue
Text	Preview	Ratio	AA normal	AA large	AAA normal	AAA large
White text	Sample text	9.93:1 Excellent	Pass	Pass	Pass	Pass
Black text	Sample text	2.11:1 Poor	Fail	Fail	Fail	Fail

Ratios use the WCAG 2 formula and are truncated, never rounded up. Test any pair with the contrast checker.

Colors that go with Pure Blue

Complementary color

Complementary colors sit directly opposite each other on the color wheel (180° apart). They give the strongest hue contrast, which suits calls to action and accents.

≈ Sunny Yellow#E2E102

Analogous colors

Analogous colors are neighbors on the wheel, 30° either side of the base hue. They blend smoothly and are easy to combine in backgrounds, gradients and illustrations.

≈ Royal Blue#0273E2 ≈ Purple Blue#7102E2

Triadic colors

A triadic scheme uses three hues spaced 120° apart. It is lively yet balanced, and works best when one color leads and the other two act as accents.

≈ Tomato Red#E20203 ≈ Vibrant Green#03E202

Split-complementary colors

Split-complementary keeps the base color and uses the two colors on either side of its complement (150° and 210°). The contrast is strong but gentler than a direct complement.

≈ Pumpkin#E27102 ≈ Green Apple#73E202

Tetradic colors

A tetradic (rectangle) scheme combines two complementary pairs at 0°, 60°, 180° and 240°. It offers variety but needs one dominant color to stay balanced.

≈ Bright Magenta#E102E2 ≈ Sunny Yellow#E2E102 ≈ Vibrant Green#03E202

Monochromatic variants

Monochromatic variants keep the same hue and saturation and only change lightness, which makes them dependable for UI scales and subtle layered designs.

#010154#010154

#01029B#01029B

#0203E2#0203E2

#2E2FFD#2E2FFD

#7576FE#7576FE

A “≈” before a name means the exact harmony color has no named match, so the link goes to the closest named color.

Tints and shades of Pure Blue

Lighter tints (mixed with white)

Darker shades (mixed with black)

Select any swatch to copy its HEX code. Build longer scales with the tints and shades tool.

Ultramarine Blue#1805DB Rich Blue#021BF9 Strong Blue#0C06F7 Medium Blue#0000CD Vivid Blue#152EFF Light Royal Blue#3A2EFE True Blue#010FCC Blue#0000FF

Where to use Pure Blue

Button, banner and badge backgrounds with white text (9.93:1 contrast)
Accents that need to stand out: call-to-action buttons, charts and illustrations
Links, buttons and primary interface accents
Corporate, finance and software branding
Headers and navigation bars
Charts and dashboards

Use Pure Blue in CSS

:root {
  --color-pure-blue: #0203E2;
}

.element {
  color: var(--color-pure-blue);
  background-color: #0203E2;
  border: 2px solid #0203E2;
}

Questions about Pure Blue

What is the HEX code for Pure Blue?

Pure Blue is #0203E2.

What is the RGB value of Pure Blue?

The RGB value of Pure Blue is 2, 3, 226: 2 red, 3 green and 226 blue on a 0–255 scale, written rgb(2, 3, 226) in CSS.

What is the HSL value of Pure Blue?

The HSL value of Pure Blue is 240°, 98%, 45% (hue, saturation, lightness), written hsl(240, 98%, 45%) in CSS.

What is the CMYK value of Pure Blue?

A standard conversion gives about C 99%, M 99%, Y 0%, K 11%. Real print results depend on the inks, paper and color profile, so treat CMYK here as a reference value.

Is Pure Blue a light or dark color?

Pure Blue counts as a dark color: its HSL lightness is 45% and its relative luminance is 0.056. White text reads comfortably on it (9.93:1 contrast).

How does Pure Blue look with white text?

White text on Pure Blue has a contrast ratio of 9.93:1, rated Excellent. It meets WCAG AA for normal text.

How does Pure Blue look with black text?

Black text on Pure Blue has a contrast ratio of 2.11:1, rated Poor. It falls below the WCAG minimum for text.

What colors go well with Pure Blue?

Sunny Yellow is its complementary color, and Royal Blue sits beside it as an analogous color. Lighter and darker variants of the same hue also work well for monochromatic palettes.

Where can Pure Blue be used?

It suits button, banner and badge backgrounds with white text (9.93:1 contrast); accents that need to stand out: call-to-action buttons, charts and illustrations; links, buttons and primary interface accents.

How do I use Pure Blue in CSS?

Use color: #0203E2; for text, background-color: #0203E2; for fills, or define a custom property such as --color-pure-blue: #0203E2; and reuse it with var(--color-pure-blue).

About this color page

Crowd-sourced name from the XKCD Color Survey (CC0). Values are calculated from the HEX code; color names are labels, not trademarks or standards unless stated. Screens render colors differently, so always check important colors on your own device. See the disclaimer.

Pure Blue Color Code: #0203E2