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Electric Bosco

#4bc147
Notes

Electric Bosco (#4BC147) is a true 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 (118°, 50%, 52%) 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
#4bc147
RGB
rgb(75, 193, 71)
HSL
hsl(118, 50%, 52%)
HWB
hwb(118 28% 24%)
OKLCH
oklch(71.9% 0.193 142.7)
P3
color(display-p3 0.4270 0.7470 0.3444)
HSV
hsv(118, 63%, 76%)
LAB
lab(69.53% -56.61 50.32)
LCH
lch(69.53% 75.74 138.37)
CMYK
cmyk(61%, 0%, 63%, 24%)

Etymology

Electric
adjective

From the Greek elektron, amber — the substance whose static-electric properties were observed by Thales of Miletus. Used as a color modifier since the late nineteenth century after electric light made certain saturated colors feel attention-demanding. Electric blue, electric pink: the implication is hot luminance combined with optical impact. Sits at the bright-bucket extreme.

Bosco
noun

The Italian word for forest or woods — used for the deep green of Tuscan bosco (woodland) and the dense forest understory of Apennine national parks. The color refers to a Tuscan bosco canopy in midsummer: a saturated, slightly muted deep green with the matte finish of mature broadleaf canopy.

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.

#4bc147
Original
#c5b039
Protanopia
#b6a651
Deuteranopia
#35bca7
Tritanopia
#9f9f9f
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
2.33:1
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
9.02:1

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
##4BC147
Display P3
Display P3
color(display-p3 0.4270 0.7470 0.3444)
P3 has visible headroomOKLCH chroma 0.193

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

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