Cosmo Embroidery Floss

310

Browns family

Cosmo 310 is a medium-dark, muted brown shade with hex code #573E2F and RGB values 87, 62, 47. 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
#573E2F
RGB
87, 62, 47
HSL
22°, 30%, 26%
Lab
28.6, 8.7, 13.5
Lightness
26%
Dark
Saturation
30%
Muted
Hue
22°
Family
Browns

Brand Equivalents for Cosmo 310

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

Cosmo 310

Sullivans

Drab Brown 45144 72% Approx
Mocha Brown Dark 45393 68% Approx
Beige Brown Dark 45237 64% Fair
Golden Olive Dark 45231 62% Fair
Hazel Nut Brown Very Dark 45242 60% Fair

Crescent Colours

Rod and Reel 116 68% Approx
Wisconsin Woods 114 68% Approx
Brown Sugar 178 61% Fair
Cappuccino 007 56% Fair
Camouflage 063 51% Fair

Similar Cosmo Colors to 310

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

Working with Cosmo 310

On white fabric
9.8:1
On dark fabric
2.1:1
Temperature
soft warm
Closest to
charcoal

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 310

Cosmo threads that pair well with 310, 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 310 in context with nearby shades from the browns color family.

About Cosmo 310

Cosmo 310 sits in the browns family as a medium-dark, muted shade with warm chocolate tones. This thread brings a somber and rich presence to projects featuring cinnamon motifs or bark patterns. Look for it in charts that feature gingerbread themes or tree trunks.

Frequently Asked Questions

Cosmo 310 — what color is it?

Cosmo 310 is a medium-dark brown thread (hex #573E2F, RGB 87, 62, 47). It shows up most in wooden textures and coffee themes.

What is the DMC equivalent of Cosmo 310?

The closest DMC match for Cosmo 310 is DMC 3781 (Mocha Brown dark) with a 85% match based on visual color similarity. Other near matches include DMC 839 (Beige Brown dark, 85%) and DMC 801 (Coffee Brown dark, 74%).

Which Cosmo threads are close to 310?

The closest Cosmo threads to 310 are 2040 (ΔE 3.49), 386 (ΔE 4.01), and 311 (ΔE 4.64). These are useful substitutes when 310 is unavailable or for building gradients.

What is Cosmo 310 good for?

Cosmo 310 is commonly used in cross-stitch projects featuring wooden textures, coffee themes, rustic designs, leather accents. Its medium-dark tone works well for standalone motifs and as part of larger palettes. This page includes color harmonies and similar shades to pair with 310.

What fabric color works best with Cosmo 310?

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, 310 has a contrast ratio of about 9.8:1 on white fabric and 2.1:1 on black. As a soft warm shade, its warm cast advances toward the viewer — good for focal points, highlights, and cozy, inviting palettes.