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Ostentatious Hard Kelly

#8cf191
Notes

Ostentatious Hard Kelly (#8CF191) is a soft green with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (123°, 78%, 75%) places it in the highly saturated band at a light 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#8cf191
RGB
rgb(140, 241, 145)
HSL
hsl(123, 78%, 75%)
HWB
hwb(123 55% 5%)
OKLCH
oklch(87.3% 0.161 145.1)
P3
color(display-p3 0.6436 0.9353 0.6063)
HSV
hsv(123, 42%, 95%)
LAB
lab(87.25% -48.62 37.34)
LCH
lch(87.25% 61.30 142.47)
CMYK
cmyk(42%, 0%, 40%, 5%)

Etymology

Ostentatious
adjective

Latin ostentātiōnis, display — adjectival suffix -ous, derived from ostendere (to show). As a color modifier, ostentatious implies a saturated-and-attention-demanding-and-elaborate quality, the bright color of Belle-Époque-and-Gilded-Age showy-luxury-display interior-decoration. Sits at the bright-and-flamboyant end of the grid, parallel to flamboyant and showy in usage.

Hard
modifier

Old English heard, firm / hard. As a color modifier, hard implies a stone-and-iron-and-bone quality, the visual register of hand-hard-and-firm stone-and-iron-and-bone hard-and-firm-and-resistant tactile-hardness-and-firmness surfaces under hard-and-firm tactile-hardness light. Sits at the modifier-and-texture end of the grid, parallel to forged and hewn in usage.

Kelly
noun

A bright yellow-green named for the Irish surname Kelly, common enough by the late nineteenth century to stand in for generic Irish in American slang. The color is the saturated, optically bright green of a Saint Patrick's Day parade: cleaner than shamrock, brighter than fern, with the pop-culture weight of a color used annually for green beer, green carnations, and the Chicago River.

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.

#8cf191
Original
#f4e18a
Protanopia
#e6d797
Deuteranopia
#7fecd9
Tritanopia
#d5d5d5
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
1.39:1
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
15.11:1

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
##8CF191
Display P3
Display P3
color(display-p3 0.6436 0.9353 0.6063)
P3 has subtle headroomOKLCH chroma 0.161

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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