Cosmo Embroidery Floss

667A

Blues family

Need details on Cosmo 667A? This dark, moderately saturated blue hand-dyed shade is hex #2A2A53, RGB 42, 42, 83. Cross-brand equivalents in Anchor, Madeira, and J&P Coates are listed below — ranked by perceptual similarity — alongside 8 nearby Cosmo shades and color-theory harmony pairings.

Hex
#2A2A53
RGB
42, 42, 83
HSL
240°, 33%, 25%
Lab
19.1, 12.5, -25.1
Lightness
25%
Dark
Saturation
33%
Muted
Hue
240°
Family
Blues

Brand Equivalents for Cosmo 667A

Top 5 closest matches in each brand, ranked by visual color similarity. How matching works

Cosmo 667A

Sullivans

Navy Blue 45069 80% Good
Baby Blue Ultra Very Dark 45494 75% Approx
Cornflower Blue Medium Dark 45473 71% Approx
Navy Blue Medium 45054 68% Approx
Blue Very Dark 45225 67% Approx

Crescent Colours

Granny Annie 083 54% Fair
Purple Aster 070 53% Fair
Wavy Navy 075 46% Fair
Tartan Plaid 073 38% Fair
Blooming Crocus 032 35% Fair

Similar Cosmo Colors to 667A

Closest Cosmo threads by perceptual color distance, sorted from most to least similar.

Working with Cosmo 667A

On white fabric
13.5:1
On dark fabric
1.6:1
Temperature
cool
Closest to
navy

It pops on white and light fabric but nearly disappears on black, so pair it with a light or neutral ground.

Blending & gradients

Its nearest neighbor, Cosmo 168, is barely a step away (ΔE 0.89). Tweed the two together for subtle shading, or substitute freely when one is out of stock.

Color Harmonies for Cosmo 667A

Cosmo threads that pair well with 667A, based on color theory harmony rules in CIELAB color space.

Complementary
Opposite on the color wheel — maximum contrast
Analogous
Adjacent hues — smooth, natural transitions
Triadic
Evenly spaced at 120° — vibrant and balanced
Monochromatic
Same hue, different lightness — great for shading

Blues Family

Cosmo 667A in context with nearby shades from the blues color family.

About Cosmo 667A

Cosmo 667A is a dark, moderately saturated shade from the blues family with deep blue tones. With a dark and rich quality, this thread works beautifully in water and denim textures. You will find this color at home in patterns featuring cool-toned backgrounds and nautical themes.

Frequently Asked Questions

What color is Cosmo 667A?

Cosmo 667A is a dark blue shade (hex #2A2A53, RGB 42, 42, 83) in the blues family, commonly used for whale designs, sapphire accents, and similar motifs.

What's the closest DMC match for Cosmo 667A?

The closest DMC match for Cosmo 667A is DMC 791 (Cornflower Blue very dark) with a 82% match based on visual color similarity. Other near matches include DMC 158 (Cornflower Blue medium, 81%) and DMC 336 (Navy Blue, 81%).

What's a good substitute for Cosmo 667A?

The closest Cosmo threads to 667A are 168 (ΔE 0.89), 668 (ΔE 2.33), and 218 (ΔE 2.41). These are useful substitutes when 667A is unavailable or for building gradients.

What projects use Cosmo 667A?

Cross-stitchers pull Cosmo 667A for charts featuring whale designs, sapphire accents, porcelain patterns, hydrangea blooms. The dark tone reads cleanly on its own and slots into multi-color palettes — see the color harmonies below for pairing ideas.

What fabric color works best with Cosmo 667A?

It pops on white and light fabric but nearly disappears on black, so pair it with a light or neutral ground. For reference, 667A has a contrast ratio of about 13.5:1 on white fabric and 1.6:1 on black. As a cool shade, its cool cast recedes visually — useful for backgrounds, shadows, water and sky, and calm, restful palettes.