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Stimulating Kale

#38af38
Notes

Stimulating Kale (#38AF38) is a true green 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 (120°, 52%, 45%) 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#38af38
RGB
rgb(56, 175, 56)
HSL
hsl(120, 52%, 45%)
HWB
hwb(120 22% 31%)
OKLCH
oklch(66.4% 0.190 143.1)
P3
color(display-p3 0.3634 0.6769 0.2886)
HSV
hsv(120, 68%, 69%)
LAB
lab(63.16% -55.84 49.55)
LCH
lch(63.16% 74.65 138.42)
CMYK
cmyk(68%, 0%, 68%, 31%)

Etymology

Stimulating
adjective

Latin stimulāns, spurring on — present-participle of stimulate, derived from stimulus (a goad). As a color modifier, stimulating implies a saturated-and-arousing-and-attentive quality where the hue increases visual-and-cognitive engagement. Sits at the bright-and-active end of the grid, parallel to invigorating and bracing in usage.

Kale
noun

Brassica oleracea var. acephala — the loose-leaved cabbage variety eaten as a leafy green in northern European, Tuscan, and Portuguese cuisine. Kale color refers to fresh raw curly kale: a saturated, slightly cool deep green with the matte finish of leathery brassica leaf. Cooler than spinach.

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.

#38af38
Original
#b39f28
Protanopia
#a59543
Deuteranopia
#19aa97
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).
Failon White
2.85:1
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
7.36:1

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
##38AF38
Display P3
Display P3
color(display-p3 0.3634 0.6769 0.2886)
P3 has visible headroomOKLCH chroma 0.190

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.

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