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Plainspoken Aventurine

#647d43
Notes

Plainspoken Aventurine (#647D43) 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 (86°, 30%, 38%) 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
#647d43
RGB
rgb(100, 125, 67)
HSL
hsl(86, 30%, 38%)
HWB
hwb(86 26% 51%)
OKLCH
oklch(55.6% 0.088 128.1)
P3
color(display-p3 0.4117 0.4873 0.2895)
HSV
hsv(86, 46%, 49%)
LAB
lab(49.23% -19.63 28.61)
LCH
lch(49.23% 34.70 124.45)
CMYK
cmyk(20%, 0%, 46%, 51%)

Etymology

Plainspoken
adjective

English compound plain + spoken — past-participle of speak. As a color modifier, plainspoken implies a clear-and-direct-and-straightforward quality where the hue carries the visual register of unembellished-honest declaration. Sits at the crisp-and-honest end of the grid, parallel to candid and direct in usage.

Aventurine
noun

A green variety of quartz with mica or chrome-mica inclusions that produce a metallic shimmer (aventurescence). Mined principally in India, Brazil, and Russia. The color refers to a polished green aventurine cabochon: a soft, slightly muted yellow-green with the optical complexity of internal mica plates.

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.

#647d43
Original
#82763e
Protanopia
#7f7546
Deuteranopia
#66786f
Tritanopia
#737373
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).
AAon White
4.61:1
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
4.56:1

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
##647D43
Display P3
Display P3
color(display-p3 0.4117 0.4873 0.2895)
P3 has subtle headroomOKLCH chroma 0.088

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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