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Opulent Spinach

#639d24
Notes

Opulent Spinach (#639D24) is a true 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 (89°, 63%, 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
#639d24
RGB
rgb(99, 157, 36)
HSL
hsl(89, 63%, 38%)
HWB
hwb(89 14% 38%)
OKLCH
oklch(63.3% 0.160 132.3)
P3
color(display-p3 0.4398 0.6098 0.2283)
HSV
hsv(89, 77%, 62%)
LAB
lab(58.88% -38.18 53.26)
LCH
lch(58.88% 65.53 125.63)
CMYK
cmyk(37%, 0%, 77%, 38%)

Etymology

Opulent
adjective

Latin opulentus, rich / wealthy — derived from ops (wealth). As a color modifier, opulent implies a saturated-and-luxurious quality, the deep-rich color of Belle-Époque and Gilded-Age interior-decoration silk-and-velvet textiles. Sits at the bold-and-saturated end of the grid, parallel to lavish and sumptuous.

Spinach
noun

Spinacia oleracea, the Persian leaf cultivated in China and the Mediterranean since the seventh century, popularized in twentieth-century America by Popeye and a misplaced decimal point in an iron-content study. The color refers to fresh raw spinach leaves: a saturated, slightly yellow-shifted green with the matte finish of a crinkled-savoy leaf. Deeper than apple, cooler than olive, with the kitchen weight of a vegetable that wilts to a quarter its raw volume.

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.

#639d24
Original
#a49106
Protanopia
#9c8c30
Deuteranopia
#649686
Tritanopia
#888888
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
3.29:1
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
6.38:1

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
##639D24
Display P3
Display P3
color(display-p3 0.4398 0.6098 0.2283)
P3 has subtle headroomOKLCH chroma 0.160

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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