Colors that go with royal blue

#4169E1 · cool blue · hue 225° · best text: #FFFFFF

Ten combinations ranked by measurable criteria — hue harmony, WCAG contrast with royal blue, lightness spread and saturation compatibility. Every pairing lists why it works.

Ready-to-use palette

#4169E1
#2242C7
#2EE8BB
#96F97B
#FF7F50
#FAFAF9
#4169e1 #2242c7 #2ee8bb #96f97b #ff7f50 #fafaf9
#4169E1 #2242C7 #2EE8BB #96F97B #FF7F50 #FAFAF9
Open in palette generator →Full royal blue page →

Best combinations — ranked

#1

Blue Blue #2242C7

· Same hue family as royal blue (Δh 3°) — guaranteed harmony
· Close value pairing (1.62:1) — use for large surfaces, not small text
· Similar saturation (73% vs 71%) — both vivid
contrast
1.6:1
vs royal blue
#2

Aqua Marine #2EE8BB

· Warm/cool bridge (Δh 60°) — adds depth without tension
· UI contrast with the anchor (3.09:1, passes AA large text)
· Strong lightness separation (ΔL* 35) — clear visual hierarchy
contrast
3.1:1
vs royal blue
#3

Light Green #96F97B

· Triadic harmony (Δh ≈118°) — balanced three-way contrast
· UI contrast with the anchor (3.72:1, passes AA large text)
· Strong lightness separation (ΔL* 42) — clear visual hierarchy
contrast
3.7:1
vs royal blue
#4

Coral #FF7F50

· Split-complementary angle (Δh ≈151°) — strong but softer than direct complement
· Close value pairing (1.94:1) — use for large surfaces, not small text
contrast
1.9:1
vs royal blue
#5

Mustard #DBB42C

· Complementary hue (Δh ≈178°) — maximum hue contrast
· Close value pairing (2.44:1) — use for large surfaces, not small text
· Strong lightness separation (ΔL* 27) — clear visual hierarchy
contrast
2.4:1
vs royal blue
#6

Foam Green #90FDA9

· UI contrast with the anchor (3.88:1, passes AA large text)
· Strong lightness separation (ΔL* 43) — clear visual hierarchy
contrast
3.9:1
vs royal blue
#7

Pastel Green #B0FF9D

· Triadic harmony (Δh ≈117°) — balanced three-way contrast
· UI contrast with the anchor (4.07:1, passes AA large text)
· Strong lightness separation (ΔL* 45) — clear visual hierarchy
contrast
4.1:1
vs royal blue
#8

Emerald #50C878

· Close value pairing (2.28:1) — use for large surfaces, not small text
contrast
2.3:1
vs royal blue
#9

Baby Green #8CFF9E

· UI contrast with the anchor (3.9:1, passes AA large text)
· Strong lightness separation (ΔL* 44) — clear visual hierarchy
contrast
3.9:1
vs royal blue
#10

Rosy Pink #F6688E

· Triadic harmony (Δh ≈119°) — balanced three-way contrast
· Close value pairing (1.68:1) — use for large surfaces, not small text
· Similar saturation (73% vs 89%) — both vivid
contrast
1.7:1
vs royal blue

Why these and not others

Pairings are scored against hue-harmony angles (0°/30°/60°/90°/120°/150°/180°), WCAG contrast ratio with royal blue, lightness separation and saturation/chroma compatibility. Near-identical colors (ΔE₀₀ < 3.5) are excluded — every entry adds real information.

FAQ

What colors go with royal blue?

Blue Blue, Aqua Marine, Light Green, Coral and Mustard rank highest for royal blue (#4169E1) by hue harmony, contrast and saturation compatibility. The full ranked list is on this page with the reasoning for each pairing.

What is the complementary color of royal blue?

The complementary hue of royal blue (hue 225°) sits at hue 45°. The closest named colors on that side of the wheel are listed in the combinations above.

Is royal blue a warm or cool color?

Royal Blue is a cool color (hue 225°). It pairs naturally with crisp whites and cool grays.