Royal Blue vs Medium Slate Blue — Difference, Contrast & Harmony

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Royal Bluenearest vs Medium Slate Bluenearest

#0075F6 · #7A5CF0

Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 83/100 (analogous) · Distinguishable 60/100 (somewhat similar) · Match 43/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.

Readability1Fail

The quick brown fox jumps over the lazy dog.

Fail1.1:1

Harmony83Analogous

Analogous

41° apart

Distinguishable60Somewhat similar

normal

tritanopia

ΔE 26 (22 under CVD)

Match43Different

ΔE 26 — different

How different are Royal Blue and Medium Slate Blue?

Royal Blue and Medium Slate Blue are a clear pair (ΔE 26). They have distinctly different hues (41° apart) and their lightness is similar, so they read as two same-weight colours.

Can you read one on the other?

Royal Blue text on Medium Slate Blue: 1.06:1 (Fail); Medium Slate Blue text on Royal Blue: 1.06:1 (Fail). Neither meets AA at body size — nudging one color to #FDFEFF clears it.

Common questions

Do Royal Blue and Medium Slate Blue go well together?

Analogous — analogous — a recognised, balanced pairing (harmony 83/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.

Is Royal Blue readable as text on Medium Slate Blue?

Not at body size — the best direction is only 1.1:1, below the 4.5:1 minimum. Nudging one colour to #FDFEFF clears AA.

What is the colour difference (ΔE) between Royal Blue and Medium Slate Blue?

Their CIE76 ΔE is about 26 — a clear pair.

Are Royal Blue and Medium Slate Blue the same colour?

clearly different colours (ΔE 26).

Related comparisons

Explore each color: Royal Blue #0075F6 · Medium Slate Blue #7A5CF0 · Shades: Royal Blue shades · Medium Slate Blue shades · Contrast checker →

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