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Acid Hops

#83af18
Notes

Acid Hops (#83AF18) is a true lime 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 (77°, 76%, 39%) places it in the highly saturated band at a mid 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#83af18
RGB
rgb(131, 175, 24)
HSL
hsl(77, 76%, 39%)
HWB
hwb(77 9% 31%)
OKLCH
oklch(69.7% 0.171 126.0)
HSV
hsv(77, 86%, 69%)
LAB
lab(66.18% -34.46 63.85)
LCH
lch(66.18% 72.56 118.36)
CMYK
cmyk(25%, 0%, 86%, 31%)

Etymology

Acid
adjective

Latin acidus, sour — sharing root with English acrid and acerbic. As a color modifier, acid implies a saturated-and-citric-and-zingy quality, the bright color of lemon-and-lime citrus-fruit-flesh and acid-yellow fluorescent-pigment surfaces. Sits at the bright-and-cool end of the grid, parallel to acidic and electric in usage.

Hops
noun

Humulus lupulus, the climbing vine whose female flower clusters (cones) flavor beer with bittering oils and aromatic compounds. The color refers to fresh hop cones at harvest: a saturated, slightly cool yellow-green with the matte finish of papery flower bracts. Drier than vine.

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.

#83af18
Original
#b9a300
Protanopia
#b3a02b
Deuteranopia
#89a695
Tritanopia
#9b9b9b
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
2.59:1
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
8.11:1

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