Cosmo Embroidery Floss

664A

Blues family

Below: Cosmo 664A, a medium, moderately saturated blue shade with hex #4F569C and RGB 79, 86, 156. Find its closest Madeira, J&P Coates, and Sullivans matches ranked by visual similarity, plus 8 similar Cosmo shades and a full set of color harmony picks.

Hex
#4F569C
RGB
79, 86, 156
HSL
235°, 33%, 46%
Lab
39.1, 17.1, -39.1
Lightness
46%
Medium
Saturation
33%
Muted
Hue
235°
Family
Blues

Brand Equivalents for Cosmo 664A

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

Cosmo 664A

Sullivans

Lavender Blue Dark 45436 79% Approx
Blue Violet Dark 45373 77% Approx
Cornflower Blue 45404 71% Approx
Delft Blue Dark 45208 69% Approx
Grey Blue 45476 68% Approx

Crescent Colours

Blue Beatrice 132 77% Approx
Vintage Violet 045 55% Fair
Pansy Purple 102 53% Fair
Granny Annie 083 46% Fair
Blooming Crocus 032 45% Fair

Similar Cosmo Colors to 664A

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

Cosmo 664A
Cosmo 2214 Very close ΔE 4.02 Cosmo 175 Very close ΔE 4.88 Cosmo 174 Very close ΔE 4.96 Cosmo 555 Noticeable ΔE 5.52 Cosmo 176 Noticeable ΔE 5.68 Cosmo 166 Noticeable ΔE 5.92 Cosmo 254 Noticeable ΔE 6.41 Cosmo 2664 Noticeable ΔE 6.43

Working with Cosmo 664A

On white fabric
6.7:1
On dark fabric
3.1:1
Temperature
cool
Closest to
indigo

It has moderate contrast on both light and dark fabric — usable on either, but test a few stitches on your chosen ground first.

Color Harmonies for Cosmo 664A

Cosmo threads that pair well with 664A, based on color theory harmony rules in CIELAB color space.

Complementary
Opposite on the color wheel — maximum contrast
664A
675A Cosmo 675A
Analogous
Adjacent hues — smooth, natural transitions
664A
2032 Cosmo 2032 376 Cosmo 376
Triadic
Evenly spaced at 120° — vibrant and balanced
664A
309 Cosmo 309 846 Cosmo 846
Monochromatic
Same hue, different lightness — great for shading
664A
216 Cosmo 216 662 Cosmo 662 522 Cosmo 522

Blues Family

Cosmo 664A in context with nearby shades from the blues color family.

664A 664A 664A 733 733 733 526 526 526 165A 165A 165A 175 175 175 2027 2027 2027 415A 415A 415A 176 176 176 2214 2214 2214 555 555 555 375 375 375

About Cosmo 664A

A medium, moderately saturated entry in the blues family, that's Cosmo 664A with true blue tones. The balanced and warm character of this shade lends itself well to porcelain patterns and hydrangea blooms. Stitchers frequently choose it for skies and water in their projects.

Frequently Asked Questions

What color is Cosmo 664A?

Cosmo 664A is a medium blue shade (hex #4F569C, RGB 79, 86, 156) in the blues family, commonly used for winter scenes, forget-me-nots, and similar motifs.

What's the closest DMC match for Cosmo 664A?

The closest DMC match for Cosmo 664A is DMC 3807 (Cornflower Blue) with a 87% match based on visual color similarity. Other near matches include DMC 3838 (Lavender Blue dark, 84%) and DMC 793 (Cornflower Blue medium, 74%).

What's a good substitute for Cosmo 664A?

The closest Cosmo threads to 664A are 2214 (ΔE 4.02), 175 (ΔE 4.88), and 174 (ΔE 4.96). These are useful substitutes when 664A is unavailable or for building gradients.

What projects use Cosmo 664A?

Cross-stitchers pull Cosmo 664A for charts featuring winter scenes, forget-me-nots, bluebird motifs, whale designs. The medium 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 664A?

It has moderate contrast on both light and dark fabric — usable on either, but test a few stitches on your chosen ground first. For reference, 664A has a contrast ratio of about 6.7:1 on white fabric and 3.1:1 on black. As a cool shade, its cool cast recedes visually — useful for backgrounds, shadows, water and sky, and calm, restful palettes.

Cosmo Color Chart Cosmo ↔ DMC Conversion