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Knightly Wink Emerald

#2b9a21
Notes

Knightly Wink Emerald (#2B9A21) 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 (115°, 65%, 37%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#2b9a21
RGB
rgb(43, 154, 33)
HSL
hsl(115, 65%, 37%)
HWB
hwb(115 13% 40%)
OKLCH
oklch(60.2% 0.184 141.9)
HSV
hsv(115, 79%, 60%)
LAB
lab(55.82% -53.11 50.60)
LCH
lch(55.82% 73.36 136.38)
CMYK
cmyk(72%, 0%, 79%, 40%)

Etymology

Knightly
adjective

Old English cniht, young man / knight — adjectival suffix -ly. As a color modifier, knightly implies a saturated-and-chivalrous-and-medieval quality, the deep-rich color of medieval-English-and-French knight-and-squire armorial-bearings-and-livery tradition. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and cavalier.

Wink
modifier

Old English wincian, to-close-eye-briefly. As a color modifier, wink implies a brief-and-coy-and-twinkling quality, the visual register of star-and-candle-flame-wink hand-brief-and-coy-and-twinkling star-and-candle-flame-and-distant-window winked-and-brief-and-coy-and-twinkling surfaces under star-and-candle-flame-and-distant-window twinkling-and-coy-and-brief night-window-light. Sits at the modifier-and-mood end of the grid, parallel to blink and glint 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.

#2b9a21
Original
#9e8b01
Protanopia
#91822f
Deuteranopia
#099583
Tritanopia
#7a7a7a
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
3.65:1
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
5.75:1

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