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Quickening Acquerello

#4dd48a
Notes

Quickening Acquerello (#4DD48A) is a true teal 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 (147°, 61%, 57%) 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
#4dd48a
RGB
rgb(77, 212, 138)
HSL
hsl(147, 61%, 57%)
HWB
hwb(147 30% 17%)
OKLCH
oklch(77.8% 0.159 155.6)
HSV
hsv(147, 64%, 83%)
LAB
lab(76.37% -53.29 26.09)
LCH
lch(76.37% 59.33 153.91)
CMYK
cmyk(64%, 0%, 35%, 17%)

Etymology

Quickening
adjective

Old English cwic, living / lively — present-participle of quicken. As a color modifier, quickening implies a saturated-and-coming-alive-and-active quality where the hue accelerates visual engagement. Sits at the bright-and-active end of the grid, parallel to animated and invigorating in usage.

Acquerello
noun

The Italian word for watercolor — used for the soft, washed-out blue-greens characteristic of Italian Renaissance watercolor underpainting. Acquerello color refers to a watercolor wash on damp paper: a soft, slightly cool pale blue-green with the translucent finish of pigment-and-water on rag paper.

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.

#4dd48a
Original
#d3c485
Protanopia
#c1b78f
Deuteranopia
#00d2c1
Tritanopia
#b2b2b2
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
1.89:1
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
11.10:1

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