#A5D0C6 · #C9BFE0
Four independent scores (read the one that fits your goal): Readability 1/100 (fail) · Harmony 51/100 (triadic (soft)) · Distinguishable 20/100 (hard to tell apart) · Match 34/100 (different). There is no single “good/bad” — a pair can clash for text yet be great for an outfit.
Phosphorus and Thistle are very different (ΔE 30). They have distinctly different hues (92° apart) and their lightness is similar, so they read as two same-weight colours.
Phosphorus text on Thistle: 1.04:1 (Fail); Thistle text on Phosphorus: 1.04:1 (Fail). Neither meets AA at body size — nudging one color to #315850 clears it.
Triadic (soft) — workable but not a textbook harmony (harmony 51/100). 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 #315850 clears AA.
Their CIE76 ΔE is about 30 — very different.
clearly different colours (ΔE 30).
Explore each color: Phosphorus #A5D0C6 · Thistle #C9BFE0 · Shades: Phosphorus shades · Thistle shades · Contrast checker →