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Rousing Hosta

#4bbc50
Notes

Rousing Hosta (#4BBC50) 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 (123°, 46%, 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
#4bbc50
RGB
rgb(75, 188, 80)
HSL
hsl(123, 46%, 52%)
HWB
hwb(123 29% 26%)
OKLCH
oklch(70.7% 0.180 144.1)
HSV
hsv(123, 60%, 74%)
LAB
lab(68.05% -53.75 44.56)
LCH
lch(68.05% 69.82 140.34)
CMYK
cmyk(60%, 0%, 57%, 26%)

Etymology

Rousing
adjective

Old English rūsan, to rush — present-participle of rouse. As a color modifier, rousing implies a saturated-and-wakening-and-active quality, the bright color of dawn-chorus-and-morning-bell atmospheric-and-aural stimulation. Sits at the bright-and-active end of the grid, parallel to awakening and invigorating in usage.

Hosta
noun

The genus Hosta — East Asian shade-tolerant perennials with broad green leaves, used as a foundation plant in temperate-shade gardens. Hosta color refers to a fresh H. plantaginea leaf: a saturated, slightly cool deep green with the satin finish of broad parallel-veined leaf.

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.

#4bbc50
Original
#bfac45
Protanopia
#b1a258
Deuteranopia
#35b7a4
Tritanopia
#9c9c9c
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
2.44:1
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
8.61:1

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