Colors that go with blue

#0000FF · cool blue · hue 240° · best text: #FFFFFF

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

Ready-to-use palette

#0000FF
#CCCCFF
#AFEEEE
#00FF00
#E9DCC9
#FAFAF9
#0000ff #ccccff #afeeee #00ff00 #e9dcc9 #fafaf9
#0000FF #CCCCFF #AFEEEE #00FF00 #E9DCC9 #FAFAF9
Open in palette generator →Full blue page →

Best combinations — ranked

#1

Periwinkle #CCCCFF

· Same hue family as blue (Δh 0°) — guaranteed harmony
· Text-safe contrast with the anchor (5.58:1, passes WCAG AA)
· Strong lightness separation (ΔL* 51) — clear visual hierarchy
contrast
5.6:1
vs blue
#2

Paleturquoise #AFEEEE

· Warm/cool bridge (Δh 60°) — adds depth without tension
· Text-safe contrast with the anchor (6.66:1, passes WCAG AA)
· Strong lightness separation (ΔL* 58) — clear visual hierarchy
contrast
6.7:1
vs blue
#3

Lime #00FF00

· Triadic harmony (Δh ≈120°) — balanced three-way contrast
· Text-safe contrast with the anchor (6.26:1, passes WCAG AA)
· Strong lightness separation (ΔL* 55) — clear visual hierarchy
contrast
6.3:1
vs blue
#4

Warm Beige #E9DCC9

· Split-complementary angle (Δh ≈156°) — strong but softer than direct complement
· Text-safe contrast with the anchor (6.36:1, passes WCAG AA)
· Strong lightness separation (ΔL* 56) — clear visual hierarchy
contrast
6.4:1
vs blue
#5

Beige #F5F5DC

· Complementary hue (Δh ≈180°) — maximum hue contrast
· Text-safe contrast with the anchor (7.76:1, passes WCAG AA)
· Strong lightness separation (ΔL* 64) — clear visual hierarchy
contrast
7.8:1
vs blue
#6

Fluorescent Green #08FF08

· Triadic harmony (Δh ≈120°) — balanced three-way contrast
· Text-safe contrast with the anchor (6.27:1, passes WCAG AA)
· Strong lightness separation (ΔL* 55) — clear visual hierarchy
contrast
6.3:1
vs blue
#7

Neon Green #0CFF0C

· Triadic harmony (Δh ≈120°) — balanced three-way contrast
· Text-safe contrast with the anchor (6.27:1, passes WCAG AA)
· Strong lightness separation (ΔL* 55) — clear visual hierarchy
contrast
6.3:1
vs blue
#8

Fluro Green #0AFF02

· Triadic harmony (Δh ≈122°) — balanced three-way contrast
· Text-safe contrast with the anchor (6.27:1, passes WCAG AA)
· Strong lightness separation (ΔL* 55) — clear visual hierarchy
contrast
6.3:1
vs blue
#9

Vibrant Green #0ADD08

· Triadic harmony (Δh ≈121°) — balanced three-way contrast
· Text-safe contrast with the anchor (4.65:1, passes WCAG AA)
· Strong lightness separation (ΔL* 45) — clear visual hierarchy
contrast
4.7:1
vs blue
#10

Electric Green #21FC0D

· Triadic harmony (Δh ≈125°) — balanced three-way contrast
· Text-safe contrast with the anchor (6.14:1, passes WCAG AA)
· Strong lightness separation (ΔL* 55) — clear visual hierarchy
contrast
6.1:1
vs blue

Why these and not others

Pairings are scored against hue-harmony angles (0°/30°/60°/90°/120°/150°/180°), WCAG contrast ratio with 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 blue?

Periwinkle, Paleturquoise, Lime, Warm Beige and Beige rank highest for blue (#0000FF) 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 blue?

The complementary hue of blue (hue 240°) sits at hue 60°. The closest named colors on that side of the wheel are listed in the combinations above.

Is blue a warm or cool color?

Blue is a cool color (hue 240°). It pairs naturally with crisp whites and cool grays.