Mystic Blue
#48a8d0
A cyan that is muted. It is light — black text sits on it comfortably, white text does not.
Hex
#48a8d0
RGB
72, 168, 208
OKLCh
69.1% 0.107 228.8°
CIELAB (D50)
64.4, -19.9, -29.4
What is true of this colour, and of no other
- 6 other named colours sit within ΔE00 2 of it.
- It uses 79% of the chroma sRGB can show at this lightness and hue.
- As text on white it measures APCA Lc 52.1; on black, Lc -49.8. 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 21.9 and 21.2 and 20.8 — no red cone.
Text on this colour
White text
2.70:1 — fails AA
Black text
7.79:1 — passes AA
Black text is the better of the two at7.79:1. That is enough for body text.
As text on white, it needs to change
#1180a6 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
#48a8d0
protanopia
#a1a1d0 · ΔE00 21.9
deuteranopia
#9494d1 · ΔE00 21.2
tritanopia
#8484ff · ΔE00 20.8
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isSea Ridge at ΔE00 1.504: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Sea RidgeΔE00 1.504 · #45a3cb
- ModalΔE00 1.623 · #31a6d1
- Estero SkyΔE00 1.846 · #54a9ca
- SkydomeΔE00 1.882 · #38a3cc
- Blue TangoΔE00 1.93 · #3fa4d2
- Oasis SpringΔE00 1.984 · #47a3c6
- Blue GrottoΔE00 2.1 · #50a2ca
- Hoeth BlueΔE00 2.109 · #57a9d4
- First LandingΔE00 2.212 · #59a6cf
- Highlighter BlueΔE00 2.322 · #3aafdc
- CousteauΔE00 2.337 · #55a9d6
- LagunaΔE00 2.351 · #36a5c9
10 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.