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Smoldering Dryad Emerald

#18ab50
Notes

Smoldering Dryad Emerald (#18AB50) is a true green 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 (143°, 75%, 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#18ab50
RGB
rgb(24, 171, 80)
HSL
hsl(143, 75%, 38%)
HWB
hwb(143 9% 33%)
OKLCH
oklch(65.0% 0.174 149.6)
HSV
hsv(143, 86%, 67%)
LAB
lab(61.57% -56.05 36.54)
LCH
lch(61.57% 66.91 146.90)
CMYK
cmyk(86%, 0%, 53%, 33%)

Etymology

Smoldering
adjective

The progressive participle of smolder, to burn slowly without flame. Used as a color word since the late nineteenth century for the deep reds and oranges of barely-flame coal — the warm saturated darks where the heat is internal rather than emitted. Sits in the bold-and-warm corner, slightly less luminous than burning and slightly less calm than rich.

Dryad
modifier

Greek δρυάς, oak-tree-nymph. As a color modifier, dryad implies an oak-tree-nymph-and-grove-spirit quality, the visual register of Hellenic-dryad-and-oak-grove-nymph hand-oak-tree-nymph-and-grove-spirit Hellenic-dryad-and-oak-grove-nymph-and-Arcadian-grove dryad-and-oak-tree-nymph-and-grove-spirit surfaces under Hellenic-dryad-and-oak-grove-nymph-and-Arcadian-grove Dodona-oak-and-sacred-grove tree-nymph-light. Sits at the modifier-and-myth end of the grid, parallel to nymph and nereid in usage.

Emerald
noun

A chromium-tinged variety of beryl — the gemstone mined from the Cleopatra-era Mons Smaragdus in Egypt, the Muzo deposits of Colombia, and the Sandawana mines of Zimbabwe. Emerald green refers to a high-clarity faceted emerald with strong color saturation: a saturated, slightly blue-shifted green with the gem's signature internal life. Cooler than fern, warmer than teal, with the heraldic weight of two thousand years of royal favor.

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

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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.

#18ab50
Original
#ac9b48
Protanopia
#9d9057
Deuteranopia
#00a896
Tritanopia
#858585
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
3.01:1
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
6.98:1

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