Royal Blue (#002366)

HEX, RGB, HSL, CMYK values + mood/style/use-case color tags. Use this page to keep your colors consistent across web and print.

Preview

Sample Text

This is how text may look on this color.

Best text color: #FFFFFF
Contrast vs white: 14.66:1 — vs black: 1.43:1

Color values

HEX #002366
RGB rgb(0, 35, 102)
HSL hsl(219, 100%, 40%)
CMYK cmyk( 100, 65.69, 0, 60 )

Convert this color Check contrast Extract from image Resize/Compress image

Tags

Mood

Style

Vivid (210) Cool (180)

Use case

Text (210) Button (200) Accent (185)

Tip: tags are heuristic suggestions (helpful for browsing and inspiration).

Color Harmonies

Colors that pair well with #002366 based on color theory relationships.

Complementary

The color directly opposite on the color wheel — creates maximum contrast and vibrance.

Royal Blue
#002366 Base

#664300

Analogous

Colors adjacent on the wheel — naturally harmonious and pleasing to the eye.

Royal Blue
#002366 Base

#005666

#100066

Triadic

Three colors equally spaced 120° apart — bold, balanced, and visually rich.

Royal Blue
#002366 Base

#660023

#236600

Split-Complementary

Two colors flanking the complement — high contrast with less tension than full complementary.

Royal Blue
#002366 Base

#661000

#566600

Tetradic (Square)

Four colors at 90° intervals — rich variety, best when one color dominates.

Royal Blue
#002366 Base

#660056

#664300

#006610

Monochromatic

Shades and tints of the same hue — cohesive, elegant, and easy to work with.

Royal Blue
#002366 Base

#00091A

#00153D

#00318F

#003DB3

#0057FF

Shades & Tints

Darker shades and lighter tints of Royal Blue, generated by adjusting lightness while keeping the same hue and saturation.

Shades (darker)

— #00091A

— #000E29

— #001338

— #001847

— #001E57

Royal Blue #002366 Base

— #003DB3

— #0057FF

— #4D8AFF

— #99BCFF

— #E6EEFF

CSS & SCSS Snippets

Ready-to-use code snippets for #002366. Click the copy button to copy any snippet to your clipboard.

/* Background */
.element {
    background-color: #002366;
}

/* Text */
.element {
    color: #002366;
}

/* Border */
.element {
    border: 1px solid #002366;
}

/* Linear gradient to complementary */
.element {
    background: linear-gradient(
        to right,
        #002366,
        #CC8600
    );
}

/* Radial gradient */
.element {
    background: radial-gradient(
        circle,
        #002366,
        #CC8600
    );
}

// SCSS variable
$royal-blue: #002366;

// With RGB channels (useful for rgba() usage)
$royal-blue-r: 0;
$royal-blue-g: 35;
$royal-blue-b: 102;

// Usage
.element {
    background-color: $royal-blue;
    color: rgba($royal-blue-r, $royal-blue-g, $royal-blue-b, 0.8);
}

Color Blindness Simulation

How Royal Blue appears to people with different types of color vision deficiency.

Normal Vision #002366 How the color appears with full color vision.

Deuteranopia #1C1C66 Deuteranopia affects ~8% of males. Green cones are absent, making it difficult to distinguish red from green. The most common form of color blindness.

Protanopia #212166 Protanopia affects ~1% of males. Red cones are absent, causing reds to appear dark and indistinguishable from greens and browns.

Tritanopia #003232 Tritanopia is rare (~0.003%). Blue cones are absent, making blue and yellow difficult to distinguish. Blues may appear green, yellows appear pink.

Achromatopsia #282828 Achromatopsia is complete color blindness. The world is seen entirely in shades of grey. Affects ~1 in 30,000 people.

Similar Named Colors

The closest named colors to Royal Blue ranked by perceptual difference (Delta-E 2000 — lower = more similar).

Royal Blue #002366 Base

Catalina Blue #062A78 ΔE 3.14

Cool Black #002E63 ΔE 4.58

Saint Patrick Blue #23297A ΔE 4.71

Midnight Blue #191970 ΔE 5.55

How to use this color

Copy HEX for CSS and design tools, or RGB/HSL for UI adjustments.
Use CMYK when preparing print assets (posters, packaging, brochures).
Check contrast before using it for text or important UI elements.