Art
Klein Blue
Klein Blue
#002FA7Click to copy
Klein Blue Parameter Conversion Table
More converters →HEX#002FA7Copy
RGBrgb(0, 47, 167)Copy
HSLhsl(223, 100%, 33%)Copy
HSV/HSBhsv(223, 100%, 65%)Copy
CMYKcmyk(100%, 72%, 0%, 35%)Copy
Klein Blue Color Schemes
Complementary
#002FA7
Click to copy#A77800
Click to copyAnalogous
#0083A7
Click to copy#2500A7
Click to copySplit Complementary
#A72400
Click to copy#83A700
Click to copyMonochromatic
#002FA7
Click to copy#205AED
Click to copy#7EA0F5
Click to copy#001241
Click to copy#000000
Click to copy#000000
Click to copyKlein Blue WCAG Accessibility Contrast
WCAG Calculator →The contrast ratio of this color against common foreground/background colors (based on the WCAG 2.1 standard)
Sample text Aa
White background #FFFFFF
10.69 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Black background #000000
1.96 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Light gray background #F5F5F5
9.80 : 1
AA NormalAA LargeAAA NormalAAA Large
Sample text Aa
Dark gray background #333333
1.18 : 1
AA NormalAA LargeAAA NormalAAA Large
Klein Blue Shade Variants
Gradient Generator →Lighten with White Mixed with white for a lighter, softer color
10%
20%
30%
40%
50%
60%
70%
80%
90%
Darken with Black Mixed with black for a deeper, heavier color
10%
20%
30%
40%
50%
60%
70%
80%
90%
Muted / Morandi Mixed with gray and desaturated for a sophisticated muted tone
10%
20%
30%
40%
50%
60%
70%
80%
90%
Klein Blue Color Introduction
Definition
Klein Blue (HEX #002FA7) has the RGB value rgb(0, 47, 167), the HSL value hsl(223°, 100%, 33%) and the CMYK print value cmyk(100%, 72%, 0%, 35%). In terms of color schemes, the complement of Klein Blue is #A77800, and placing the two side by side produces a striking, eye-catching contrast; paired with the analogous colors #0082A7 and #2500A7 that sit next to it on the color wheel, it transitions naturally and harmoniously; in a split-complementary scheme (#A72400, #83A700) it keeps its contrast tension without losing layering; and a monochromatic scheme built on Klein Blue uses gradients of lightness and saturation to create a unified design with a strong sense of depth. Under the WCAG accessibility standard, Klein Blue has a contrast ratio of 10.69:1 against white and 1.96:1 against black; paired with a white background it reaches AAA, making body text highly readable.
Color Characteristics
Blue is the color of sky and ocean, evoking vastness, trust and reason. Steady and imposing, it is almost irreplaceable in technology, finance and corporate identity design. Specifically, Klein Blue has a lightness of 33% and a saturation of 100%, steady and powerful as a background or primary color, pairing well with light text for good readability; moreover, its saturation is extremely high and its visual tension is strong, so it works best used sparingly as a focal accent. In a word: Absolute blue, supremely pure.
Color Psychology
Blue can evoke calm, focus and trust, with a marked stabilizing effect; psychologically it symbolizes reason, loyalty and depth. For this reason Klein Blue tends to leave a first impression of being cool and reliable in the viewer’s mind, and this emotional tone also defines the role it plays in design.
Best Uses
Blue suits fintech, corporate websites, government systems and any scene that needs professional trust. In real projects, Klein Blue is also often used as a dark background or heading text color; in “Blue”-themed designs, the adjacent colors or lightness gradients built around it quickly establish a cohesive, clearly layered color scheme.
Klein Blue Featured In
This color is included in the following color cards and color families. Click a card to browse more colors in the corresponding collection.