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Useful Mute Moss

#175840
Notes

Useful Mute Moss (#175840) is a deep teal with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (158°, 59%, 22%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#175840
RGB
rgb(23, 88, 64)
HSL
hsl(158, 59%, 22%)
HWB
hwb(158 9% 65%)
OKLCH
oklch(41.3% 0.076 164.2)
P3
color(display-p3 0.1695 0.3400 0.2574)
HSV
hsv(158, 74%, 35%)
LAB
lab(32.99% -26.75 8.13)
LCH
lch(32.99% 27.96 163.09)
CMYK
cmyk(74%, 0%, 27%, 65%)

Etymology

Useful
adjective

Latin ūsus, use — adjectival suffix -ful. As a color modifier, useful implies a clear-and-purpose-serving quality where the hue carries the visual register of helpful-and-supporting design-element. Sits at the crisp-and-functional end of the grid, parallel to practical and serviceable in usage.

Mute
modifier

Latin mutus, silent-or-dumb. As a color modifier, mute implies a hushed-and-tongue-stilled-and-quieted quality, the visual register of silent-film-and-monastic-mute tongue-stilled-and-cloister-quieted silent-film-and-monastic-and-cloister tongue-stilled-and-still-and-quiet surfaces under silent-film-and-monastic vigil-and-cloister hush-and-quiet vow-of-silence light. Sits at the modifier-and-mood end of the grid, parallel to hush and still in usage.

Moss
noun

Bryophyta — the nonvascular plants that colonized land 470 million years ago, before vascular plants and far before flowers. The color refers to a thick mat of Hypnum or sphagnum on a temperate forest floor: a soft, slightly yellow-shifted green with the velvet texture of millimeter-scale leaves. Dustier than fern, deeper than lichen, with the slow patience of a plant that lives by absorbing rain through its surface.

Closest matches

The nearest named color in three reference sources, ranked by perceptual distance (ΔE76 in CIELAB). ΔE < 1 is imperceptible to most viewers; ΔE > 10 is clearly different. When two sources point to the same hex they’re merged into one tile; click any to open that color’s page.

Variations

Click any swatch to explore

Harmonies

Accessibility

Color-vision simulation

How this color appears to viewers with the four major color-vision-deficiency types. Computed via the Machado (2009) physiologically-based model. If a tile matches the original, the color reads the same to that viewer.

#175840
Original
#56513f
Protanopia
#4e4b42
Deuteranopia
#005851
Tritanopia
#484848
Achromatopsia
WCAG contrast

The color used as foreground text against pure white and pure black, with the contrast ratio and WCAG 2.1 grade. Aim for AA (4.5:1) for body text and AA Large (3:1) for 18 pt+ headlines; AAA (7:1) is the gold standard for long-form reading surfaces.

The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon White
8.38:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.51:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##175840
Display P3
Display P3
color(display-p3 0.1695 0.3400 0.2574)
Inside sRGBOKLCH chroma 0.076

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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