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Quickening Bonaire

#4fd58f
Notes

Quickening Bonaire (#4FD58F) 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 (149°, 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
#4fd58f
RGB
rgb(79, 213, 143)
HSL
hsl(149, 61%, 57%)
HWB
hwb(149 31% 16%)
OKLCH
oklch(78.2% 0.155 156.9)
HSV
hsv(149, 63%, 84%)
LAB
lab(76.82% -52.34 24.10)
LCH
lch(76.82% 57.62 155.28)
CMYK
cmyk(63%, 0%, 33%, 16%)

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.

Bonaire
noun

The Dutch Caribbean island — and the saturated blue-green of Bonaire's marine-park reef waters, designated the world's first national-park dive zone in 1979. Bonaire refers to the lagoon water around Klein Bonaire: a saturated, slightly cool deep blue-green with the optical clarity of southern Caribbean reef water.

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.

#4fd58f
Original
#d4c58b
Protanopia
#c2b993
Deuteranopia
#00d3c3
Tritanopia
#b3b3b3
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
1.87:1
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
11.25:1

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