#E4F6EF · #EAF5E7
Four independent scores (read the one that fits your goal): Readability 0/100 (fail) · Harmony 67/100 (analogous (soft)) · Distinguishable 16/100 (hard to tell apart) · Match 91/100 (near match). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
White Smoke and Bubble are very close (ΔE 4). They have distinctly different hues (50° apart) and their lightness is similar, so they read as two same-weight colours.
White Smoke text on Bubble: 1.00:1 (Fail); Bubble text on White Smoke: 1.00:1 (Fail). Neither meets AA at body size — nudging one color to #63726C clears it.
Analogous (soft) — workable but not a textbook harmony (harmony 67/100). This is about how they look together (clothing, interiors, branding), independent of text contrast.
Not at body size — the best direction is only 1.0:1, below the 4.5:1 minimum. Nudging one colour to #63726C clears AA.
Their CIE76 ΔE is about 4 — very close.
a very near match (ΔE 4.3) — fine for most matching.
Explore each color: White Smoke #E4F6EF · Bubble #EAF5E7 · Shades: White Smoke shades · Bubble shades · Contrast checker →