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Calm Aztec Moss

#578a34
Notes

Calm Aztec Moss (#578A34) is a true lime with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (96°, 45%, 37%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#578a34
RGB
rgb(87, 138, 52)
HSL
hsl(96, 45%, 37%)
HWB
hwb(96 20% 46%)
OKLCH
oklch(57.8% 0.130 134.6)
HSV
hsv(96, 62%, 54%)
LAB
lab(52.34% -32.82 39.76)
LCH
lch(52.34% 51.55 129.53)
CMYK
cmyk(37%, 0%, 62%, 46%)

Etymology

Calm
adjective

Latin calma, heat of the day — paradoxically drifted in Italian to mean stillness. Used as a color modifier since the seventeenth century for hues that read as untroubled. Calm blue, calm gray: moderate saturation combined with optical quiet. Sits at the crisp-bucket near quiet and steady.

Aztec
modifier

Nahuatl Aztēcatl, one-from-Aztlán. As a color modifier, aztec implies a Mexica-and-Tenochtitlan-Imperial quality, the visual register of Aztec-Empire-of-Tenochtitlan hand-built basalt-and-obsidian-and-feather-and-codex Aztec-Imperial-and-Mexica-tribute surfaces under high-altitude Tenochtitlan Aztec-Empire central-Mexico mid-altitude light. Sits at the modifier-and-cultural end of the grid, parallel to inca and toltec 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.

#578a34
Original
#8f802a
Protanopia
#887b3b
Deuteranopia
#568578
Tritanopia
#797979
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).
AA Largeon White
4.13:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.09:1

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