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Effective Spica Moss

#719643
Notes

Effective Spica Moss (#719643) 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 (87°, 38%, 43%) 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
#719643
RGB
rgb(113, 150, 67)
HSL
hsl(87, 38%, 43%)
HWB
hwb(87 26% 41%)
OKLCH
oklch(62.7% 0.119 129.3)
P3
color(display-p3 0.4731 0.5841 0.3055)
HSV
hsv(87, 55%, 59%)
LAB
lab(57.78% -27.05 39.16)
LCH
lch(57.78% 47.60 124.63)
CMYK
cmyk(25%, 0%, 55%, 41%)

Etymology

Effective
adjective

Latin effectīvus, productive — adjectival suffix -ive. As a color modifier, effective implies a clear-and-purpose-achieving quality where the hue carries the visual register of successful-task-completion design-element. Sits at the crisp-and-functional end of the grid, parallel to practical and useful in usage.

Spica
modifier

Latin spīca, ear-of-grain. As a color modifier, spica implies a Virgin-and-grain-ear-and-blue-white-star quality, the visual register of Virgo-constellation-and-spring-Spica hand-Virgin-and-grain-ear-and-blue-white-star Virgo-constellation-and-spring-and-Bortle-1-sky spica-and-Virgin-and-grain-ear-and-blue-white-star surfaces under Virgo-constellation-and-spring-and-Bortle-1-sky April-and-May-spring-southern-vista grain-bearing-stellar-light. Sits at the modifier-and-cosmic end of the grid, parallel to vega and altair 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.

#719643
Original
#9c8c3b
Protanopia
#978a48
Deuteranopia
#749083
Tritanopia
#888888
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
3.42:1
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
6.15:1

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
##719643
Display P3
Display P3
color(display-p3 0.4731 0.5841 0.3055)
P3 has subtle headroomOKLCH chroma 0.119

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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