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Sterile Zeus Moss

#125b49
Notes

Sterile Zeus Moss (#125B49) is a deep teal with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (165°, 67%, 21%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#125b49
RGB
rgb(18, 91, 73)
HSL
hsl(165, 67%, 21%)
HWB
hwb(165 7% 64%)
OKLCH
oklch(42.3% 0.075 171.9)
P3
color(display-p3 0.1663 0.3514 0.2899)
HSV
hsv(165, 80%, 36%)
LAB
lab(34.17% -26.54 4.19)
LCH
lch(34.17% 26.87 171.02)
CMYK
cmyk(80%, 0%, 20%, 64%)

Etymology

Sterile
adjective

Latin sterilis, barren / not-fertile — sharing root with Greek steiros (barren). As a color modifier, sterile implies a clear-and-medical-clean-and-stripped quality, the crisp color of operating-theater surgical-environment white-and-stainless-steel surfaces. Sits at the crisp-and-clean end of the grid, parallel to sanitary and hygienic in usage.

Zeus
modifier

Greek Ζεύς, king-of-the-Olympian-gods. As a color modifier, zeus implies a thunderbolt-and-king-of-gods-and-Olympian quality, the visual register of Olympian-Zeus-and-Phidias-Pheidias-statue hand-thunderbolt-and-king-of-gods-and-Olympian Olympian-Zeus-and-Phidias-statue-and-Mount-Olympus zeus-and-thunderbolt-and-king-of-gods-and-Olympian surfaces under Olympian-Zeus-and-Phidias-statue-and-Mount-Olympus Pheidias-chryselephantine-and-Olympia thunder-cloud-light. Sits at the modifier-and-myth end of the grid, parallel to hera and atlas 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.

#125b49
Original
#585448
Protanopia
#4e4e4a
Deuteranopia
#005c56
Tritanopia
#4a4a4a
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
8.02:1
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
2.62:1

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
##125B49
Display P3
Display P3
color(display-p3 0.1663 0.3514 0.2899)
Inside sRGBOKLCH chroma 0.075

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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