Vivid Blue
#152eff
A blue that is about as vivid as sRGB can show at this lightness. It is mid — the hardest range to put text on, either colour struggles.
Hex
#152eff
RGB
21, 46, 255
OKLCh
48.2% 0.292 265.6°
CIELAB (D50)
34.4, 55.8, -104.0
What is true of this colour, and of no other
- 2 other named colours sit within ΔE00 2 of it.
- It sits exactly on the sRGB boundary: at this lightness and hue the gamut has nothing left, and a wider display would show a more colourful version of it.
- As text on white it measures APCA Lc 83.4; on black, Lc -18.5. 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.
- All three dichromacies see it as very nearly the same colour you do: its hue is not the part carrying its identity.
Text on this colour
White text
7.33:1 — passes AA
Black text
2.87:1 — fails AA
White text is the better of the two at7.33:1. That is enough for body text.
The same colour, with one cone missing
As you see it
#152eff
protanopia
#2c2cff · ΔE00 1.2
deuteranopia
#2828ff · ΔE00 1.4
tritanopia
#2424ff · ΔE00 1.9
The twelve nearest named colours
Ranked by CIEDE2000 — perceptual distance, not hex arithmetic. The closest isNightly Escapade at ΔE00 1.127: between 1 and 2 — a trained eye spots it when the two touch; nobody spots it across a room. What the numbers mean.
- Nightly EscapadeΔE00 1.127 · #0433ff
- Blinking BlueΔE00 1.168 · #0033ff
- Is It ColdΔE00 2.069 · #0022ff
- System Shock BlueΔE00 2.136 · #3a2efe
- Blue BouquetΔE00 2.183 · #0033ee
- Vibrant BlueΔE00 2.426 · #0339f8
- C64 BlueΔE00 2.671 · #003aff
- Royal VesselΔE00 3.096 · #4433ee
- Ultra IndigoΔE00 3.188 · #4433ff
- Palatinate BlueΔE00 3.387 · #273be2
- Rich BlueΔE00 3.403 · #021bf9
- Slice of HeavenΔE00 3.459 · #0022ee
9 of these have no page of their own: pages exist for the 4,961 colours the dataset marks as good names.