Treasure Map Waters
#658faa
A blue that is nearly neutral — the hue shows only against a true grey. It is light — black text sits on it comfortably, white text does not.
Hex
#658faa
RGB
101, 143, 170
OKLCh
63.0% 0.062 237.2°
CIELAB (D50)
57.1, -9.5, -19.1
What is true of this colour, and of no other
- 3 other named colours sit within ΔE00 2 of it.
- It uses 45% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 62.1; on black, Lc -39.6. The sign is the polarity, which the WCAG ratio discards.
- Built into an eleven-step scale, 10 of the 10 adjacent pairs stay ΔE00 2 apart — see the ramp.
- protanopia and deuteranopia and tritanopia shift it by ΔE00 15.7 and 15.5 and 11.9 — no red cone.
Text on this colour
White text
3.46:1 — large text only
Black text
6.06:1 — passes AA
Black text is the better of the two at6.06:1. That is enough for body text.
As text on white, it needs to change
#527c96 is the nearest colour of the same hue that passes AA on white, at 4.50:1. Only the lightness moved.
The same colour, with one cone missing
As you see it
#658faa
protanopia
#8b8baa · ΔE00 15.7
deuteranopia
#8484ab · ΔE00 15.5
tritanopia
#7d7dec · ΔE00 11.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSea Crystal at ΔE00 1.493: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Sea CrystalΔE00 1.493 · #608ba6
- Blue CruiseΔE00 1.783 · #6591a8
- Alpha TangoΔE00 1.784 · #628fb0
- Aragonite BlueΔE00 2.056 · #6a95b1
- Air Force BlueΔE00 2.097 · #5d8aa8
- Empire BlueΔE00 2.196 · #6193b4
- Saltbox BlueΔE00 2.325 · #648fa4
- French CourtΔE00 2.339 · #6a8ea2
- Gunjō BlueΔE00 2.351 · #5d8cae
- RackleyΔE00 2.373 · #5d8aaa
- Bermuda GreyΔE00 2.44 · #6b8ba2
- Stormy Strait GreyΔE00 2.45 · #6b8ba4
12 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.