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Resplendent Groen

#66a73a
Notes

Resplendent Groen (#66A73A) 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 (96°, 48%, 44%) 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
#66a73a
RGB
rgb(102, 167, 58)
HSL
hsl(96, 48%, 44%)
HWB
hwb(96 23% 35%)
OKLCH
oklch(66.2% 0.157 134.9)
HSV
hsv(96, 65%, 65%)
LAB
lab(62.31% -39.84 48.27)
LCH
lch(62.31% 62.59 129.54)
CMYK
cmyk(39%, 0%, 65%, 35%)

Etymology

Resplendent
adjective

Latin resplendēns, shining-back — present-participle of resplendere. As a color modifier, resplendent implies a saturated-and-magnificent-shining quality, the bright color of Imperial-court full-formal-regalia gold-and-silver-and-jewel reflective surfaces. Sits at the bright-and-saturated end of the grid, parallel to radiant and brilliant in usage.

Groen
noun

The Dutch word for green — used for the Hollands Groen of Delft Blue's complementary glaze and the green polders of Dutch reclaimed-land farmland. The color refers to a Delft-pottery green underglaze: a saturated, slightly cool green with the matte finish of fired tin-glaze. The Dutch cousin of green.

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.

#66a73a
Original
#ad9a2c
Protanopia
#a49543
Deuteranopia
#65a190
Tritanopia
#919191
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).
Failon White
2.94:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAAon Black
7.15:1

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