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Effective Avocado

#406304
Notes

Effective Avocado (#406304) is a deep lime 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 (82°, 92%, 20%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#406304
RGB
rgb(64, 99, 4)
HSL
hsl(82, 92%, 20%)
HWB
hwb(82 2% 61%)
OKLCH
oklch(45.6% 0.120 129.8)
P3
color(display-p3 0.2813 0.3846 0.1062)
HSV
hsv(82, 96%, 39%)
LAB
lab(37.88% -26.76 42.90)
LCH
lch(37.88% 50.56 121.96)
CMYK
cmyk(35%, 0%, 96%, 61%)

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.

Avocado
noun

Persea americana, the buttery drupe domesticated in Mesoamerica seven thousand years ago and named for the Aztec āhuacatl. The color refers to ripe avocado flesh just under the dark skin: a soft, slightly muted yellow-green with the warm undertones of plant fat. Earthier than pistachio, lighter than olive, with the recent kitchen association of a fruit only recently turned global staple.

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.

#406304
Original
#685b00
Protanopia
#635812
Deuteranopia
#425e53
Tritanopia
#555555
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
6.99:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.00:1

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
##406304
Display P3
Display P3
color(display-p3 0.2813 0.3846 0.1062)
P3 has subtle headroomOKLCH chroma 0.120

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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