Cosmo Embroidery Floss

577A

Browns family

Cosmo 577A is a medium-dark, vivid brown shade with hex code #855B2A and RGB values 133, 91, 42. Below you'll find the closest J&P Coates, Sullivans, and Classic Colorworks equivalents — ranked by visual color similarity — plus 8 similar Cosmo shades and color harmony pairings.

Hex
#855B2A
RGB
133, 91, 42
HSL
32°, 52%, 34%
Lab
42.2, 12.1, 34.4
Lightness
34%
Dark
Saturation
52%
Rich
Hue
32°
Family
Browns

Brand Equivalents for Cosmo 577A

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

Cosmo 577A

Sullivans

Golden Olive 45233 86% Good
Golden Olive Medium 45232 75% Approx
Old Gold Dark 45158 61% Fair
Beige Grey Ultra Dark 45396 60% Fair
Yellow Beige Very Dark 45482 59% Fair

Crescent Colours

Brandied Pears 171 80% Good
Sassy Brass 071 75% Approx
Old Oak Tree 145 74% Approx
Roasted Chestnut 155 72% Approx
Little House Brown 118 63% Fair

Similar Cosmo Colors to 577A

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

Working with Cosmo 577A

On white fabric
6:1
On dark fabric
3.5:1
Temperature
warm
Closest to
brown

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

Blending & gradients

Its nearest neighbor, Cosmo 576, is barely a step away (ΔE 2.73). Tweed the two together for subtle shading, or substitute freely when one is out of stock.

Color Harmonies for Cosmo 577A

Cosmo threads that pair well with 577A, 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

Browns Family

Cosmo 577A in context with nearby shades from the browns color family.

About Cosmo 577A

Cosmo 577A is a medium-dark, vivid shade from the browns family with earthy sienna tones. This thread brings a strong and rich presence to projects featuring earth tones or animal fur. Look for it in charts that feature warm outlines or wooden textures.

Frequently Asked Questions

What color is Cosmo 577A?

Cosmo 577A is a medium-dark brown shade (hex #855B2A, RGB 133, 91, 42) in the browns family, commonly used for horse designs, cinnamon motifs, and similar motifs.

What's the closest DMC match for Cosmo 577A?

The closest DMC match for Cosmo 577A is DMC 420 (Hazelnut Brown dark) with a 84% match based on visual color similarity. Other near matches include DMC 167 (Yellow Beige very dark, 81%) and DMC 831 (Golden Olive medium, 72%).

What's a good substitute for Cosmo 577A?

The closest Cosmo threads to 577A are 576 (ΔE 2.73), 309 (ΔE 5.25), and 706 (ΔE 5.71). These are useful substitutes when 577A is unavailable or for building gradients.

What projects use Cosmo 577A?

Cross-stitchers pull Cosmo 577A for charts featuring horse designs, cinnamon motifs, bark patterns, gingerbread themes. The medium-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 577A?

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, 577A has a contrast ratio of about 6:1 on white fabric and 3.5:1 on black. As a warm shade, its warm cast advances toward the viewer — good for focal points, highlights, and cozy, inviting palettes.