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Effective Gaul Moss

#699557
Notes

Effective Gaul Moss (#699557) is a true green 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 (103°, 26%, 46%) places it in the muted 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#699557
RGB
rgb(105, 149, 87)
HSL
hsl(103, 26%, 46%)
HWB
hwb(103 34% 42%)
OKLCH
oklch(62.2% 0.101 137.1)
P3
color(display-p3 0.4486 0.5796 0.3671)
HSV
hsv(103, 42%, 58%)
LAB
lab(57.26% -27.08 28.04)
LCH
lch(57.26% 38.98 134.00)
CMYK
cmyk(30%, 0%, 42%, 42%)

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.

Gaul
modifier

Latin Gallia, Gaul. As a color modifier, gaul implies a pre-Roman-French-Celtic quality, the visual register of Gallia-Belgica-and-Gallia-Aquitania pre-Roman-period hand-carved bronze-and-iron Celtic-Gaulish chieftain-and-druid surfaces under pre-Roman Gallia-Aquitania-and-Gallia-Belgica Celtic-tribal forest light. Sits at the modifier-and-cultural end of the grid, parallel to celtic and roman 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.

#699557
Original
#998c52
Protanopia
#92885b
Deuteranopia
#689186
Tritanopia
#878787
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
3.48:1
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
6.04:1

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
##699557
Display P3
Display P3
color(display-p3 0.4486 0.5796 0.3671)
P3 has subtle headroomOKLCH chroma 0.101

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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