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Pulsating Bluegrass

#4eb566
Notes

Pulsating Bluegrass (#4EB566) 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 (134°, 41%, 51%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#4eb566
RGB
rgb(78, 181, 102)
HSL
hsl(134, 41%, 51%)
HWB
hwb(134 31% 29%)
OKLCH
oklch(69.3% 0.149 148.8)
HSV
hsv(134, 57%, 71%)
LAB
lab(66.23% -47.16 31.44)
LCH
lch(66.23% 56.68 146.31)
CMYK
cmyk(57%, 0%, 44%, 29%)

Etymology

Pulsating
adjective

Latin pulsātio, beating — present-participle of pulsate, sharing root with pellere (to drive). As a color modifier, pulsating implies a saturated-and-beating-and-rhythmic quality, the bright color of rave-and-festival light-show synchronized-pulse rhythmic-emission. Sits at the bright-and-active end of the grid, parallel to throbbing and strobing in usage.

Bluegrass
noun

Poa pratensis, Kentucky bluegrass — the cool-season turf grass that dominates lawns of the American Northeast and Midwest. Bluegrass music takes its name from the same plant via Bill Monroe's bluegrass-state Kentucky band. The color refers to a fresh-mown Kentucky bluegrass lawn: a soft, slightly cool blue-green-gray with the matte finish of cropped grass.

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.

#4eb566
Original
#b7a760
Protanopia
#a99d6b
Deuteranopia
#36b2a2
Tritanopia
#999999
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
2.58:1
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
8.13:1

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