colors
Back to gallery

Loud Genever

#40b400
Notes

Loud Genever (#40B400) 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 (99°, 100%, 35%) 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
#40b400
RGB
rgb(64, 180, 0)
HSL
hsl(99, 100%, 35%)
HWB
hwb(99 0% 29%)
OKLCH
oklch(67.7% 0.214 139.1)
P3
color(display-p3 0.3859 0.6965 0.2026)
HSV
hsv(99, 100%, 71%)
LAB
lab(64.75% -58.63 65.11)
LCH
lch(64.75% 87.62 132.00)
CMYK
cmyk(64%, 0%, 100%, 29%)

Etymology

Loud
adjective

Old English hlūd, making noise — borrowed metaphorically as a color word since the nineteenth century. Loud red, loud yellow: a color so saturated it announces itself without needing surrounding context. Sits in the bright-bucket extreme alongside electric and striking. Carries a slightly pejorative implication of excess.

Genever
noun

The Dutch juniper-flavored spirit — the predecessor of English gin, distilled in Netherlands and Belgium since the seventeenth century. Genever color refers to a fresh-poured jonge genever in a tulip glass: a soft, slightly cool pale green-yellow with the optical clarity of malt-wine-and-juniper spirit.

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.

#40b400
Original
#baa300
Protanopia
#ac9a26
Deuteranopia
#30ae98
Tritanopia
#8e8e8e
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
2.71:1
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
7.75:1

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
##40B400
Display P3
Display P3
color(display-p3 0.3859 0.6965 0.2026)
P3 has visible headroomOKLCH chroma 0.214

This color is chromatic enough that authoring it as P3 native (instead of clamping to sRGB) gives a perceptibly more saturated render on wide-gamut displays — modern Macs, iPhones, iPads, and most recent OLED laptops.

Related Colors

Canvas