Comparison

Inky Blue vs Blue Suede Shoes

Sherwin-Williams SW 9149 and Vista Paint 7366, ΔE 1.98 apart

Sherwin-Williams Inky Blue SW 9149 on a wall, hex #4E7287
Inky Blue Sherwin-Williams SW 9149
Vista Paint Blue Suede Shoes 7366 on a wall, hex #4C7183
Blue Suede Shoes Vista Paint 7366
Zeytin’s verdict · ΔE 1.98Twins, almost. Only daylight on a big wall tells them apart.

Sherwin-Williams Inky Blue (SW 9149) and Vista Paint Blue Suede Shoes (7366) measure a delta-E of 1.98 apart. They sit within 1.4 LRV points of each other, so neither will look brighter than the other on the same wall. Both carry a similar amount of color, at chroma 17 and 16.2. The difference is measurable but subtle. It shows on a large wall in strong daylight and disappears under lamplight. If you need the Blue Suede Shoes depth in Sherwin-Williams's line, start from its LRV of 14.0 rather than matching by name.

Is Sherwin-Williams Inky Blue the same color as Vista Paint Blue Suede Shoes?

Not quite, but close - Sherwin-Williams Inky Blue and Vista Paint Blue Suede Shoes are delta-E 1.98 apart, close enough that most rooms would not show the difference.

What is the delta-E between Sherwin-Williams Inky Blue and Vista Paint Blue Suede Shoes?

The measured color distance between Sherwin-Williams Inky Blue and Vista Paint Blue Suede Shoes is delta-E 1.98.

Which is lighter, Sherwin-Williams Inky Blue or Vista Paint Blue Suede Shoes?

Sherwin-Williams Inky Blue is lighter than Vista Paint Blue Suede Shoes by 1.4 points of light reflectance (LRV).

CLOSEST PAIRΔE 1.98 Inky Blue and Blue Suede Shoes
LIGHTESTInky Blue LRV 15.4
DARKESTBlue Suede Shoes LRV 14.0
SPREAD1.4LRV points

Side by side

measured values
Inky Blue Blue Suede Shoes
Brand Sherwin-Williams Vista Paint
Code SW 9149 7366
Hex #4E7287 #4C7183
Light reflectance 15.4 14.0
Undertone blue blue
Chroma 17.0 16.2
Hue angle 245.9° 240.1°
Color family teal teal

Each on its own

full detail