Copen Blue (SW 0068) vs Sea Salt (SW 6204)

Living room with walls painted Sherwin-Williams Copen Blue SW 0068 (simulated)
Copen Blue SW 0068#C2CCC4, LRV 59
Living room with walls painted Sherwin-Williams Sea Salt SW 6204 (simulated)
Sea Salt SW 6204#CDD2CA, LRV 63

Illustrative room. Screen colors vary; test a sample before you paint.

Quick decision

Lighter
Sea Salt, LRV 63 vs 59.
Warmer
Sea Salt, both green-gray (Lab b* 3.4 vs 2.8).
North rooms
Sea Salt keeps more brightness (L* 79.6 vs 77.1 in north light); both drift gray about equally.
Trim that works
Glimmer SW 6476, #E0E7E2, LRV 78: the Sherwin-Williams white closest in hue to both.
Closeness
deltaE 2.8, noticeably different. At 2.8, test both: on a full wall the difference will show.

See each color

Copen Blue (SW 0068) is slightly darker than Sea Salt (SW 6204) and about as warm: LRV 59 vs 63, deltaE 2.8 (noticeably different).

Side by side

MeasureCopen BlueSea SaltGap
BrandSherwin-WilliamsSherwin-Williams
Color codeSW 0068SW 6204
Hex#C2CCC4#CDD2CA
RGB194, 204, 196205, 210, 202
HSL132°, 9%, 78%97°, 8%, 81%
LRV (light reflectance value)5963−4
Lab L*81.183.6−2.5
Lab a*-4.9-3.1−1.7
Lab b*2.83.4−0.6
UndertoneNeutralCool Blue-Green
Temperatureneutralcool
Color familyGrayGray

Same paint, two kinds of light

Copen Blue (SW 0068), published as #C2CCC4

North light (cool, indirect)
#B0C2C2
South light (warm, direct)
#D4D6C4

Sea Salt (SW 6204), published as #CDD2CA

North light (cool, indirect)
#BBC8C8
South light (warm, direct)
#DFDCCA

These swatches and the rooms above are a simulation, not a measurement. How the visualizer works

Which should you pick

Rules of thumb computed from the LRV and Lab values in the table above; no room test was done.

  • Pick Sea Salt (SW 6204) for a small room or a north-facing room, because it is 4 LRV points lighter (63 vs 59), so it bounces back more of the limited light

Closest matches to Copen Blue in other brands

Closest matches to Sea Salt in other brands

Common questions

Is Copen Blue the same color as Sea Salt?
They are noticeably different: a CIEDE2000 difference of 2.8. Most people can see the difference between Copen Blue and Sea Salt side by side.
Which is lighter, Copen Blue or Sea Salt?
Sea Salt, with an LRV of 63 against 59.

Full pages

Related comparisons

Published . Updated .

Sources: LRV and hex as published by the manufacturer, via PaintDB (CC BY 4.0). Color differences are CIEDE2000 values computed by this site from the hex values (data snapshot 2026-10-01). Color names and codes belong to their manufacturers.