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Smooth Sicily

#899731
Notes

Smooth Sicily (#899731) is a true yellow 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 (68°, 51%, 39%) 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 blue. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#899731
RGB
rgb(137, 151, 49)
HSL
hsl(68, 51%, 39%)
HWB
hwb(68 19% 41%)
OKLCH
oklch(64.5% 0.126 116.8)
P3
color(display-p3 0.5475 0.5904 0.2592)
HSV
hsv(68, 68%, 59%)
LAB
lab(59.59% -19.12 49.87)
LCH
lch(59.59% 53.41 110.98)
CMYK
cmyk(9%, 0%, 68%, 41%)

Etymology

Smooth
adjective

Old English smōþ, level, polished — used as a color modifier since the seventeenth century for hues that read as continuous without texture or break. Smooth tan, smooth gray: moderate saturation combined with optical evenness. Sits in the crisp-bucket alongside even.

Sicily
noun

The Italian island — and the saturated lemon-yellow of Sicilian limoncello, granita al limone, and the lemon orchards of the Conca d'Oro. Sicily as a color refers to the inside of a Sicilian Femminello lemon cut against a market-stall backdrop: a saturated, slightly cool deep yellow with the optical brightness of high-water-content citrus.

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.

#899731
Original
#a18f23
Protanopia
#a09038
Deuteranopia
#918f82
Tritanopia
#8d8d8d
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
3.21:1
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
6.53:1

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
##899731
Display P3
Display P3
color(display-p3 0.5475 0.5904 0.2592)
P3 has subtle headroomOKLCH chroma 0.126

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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