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Quickening Galapagos

#40cb76
Notes

Quickening Galapagos (#40CB76) 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 (143°, 57%, 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#40cb76
RGB
rgb(64, 203, 118)
HSL
hsl(143, 57%, 52%)
HWB
hwb(143 25% 20%)
OKLCH
oklch(74.8% 0.170 152.4)
P3
color(display-p3 0.4212 0.7852 0.4946)
HSV
hsv(143, 68%, 80%)
LAB
lab(72.96% -55.84 31.85)
LCH
lch(72.96% 64.28 150.30)
CMYK
cmyk(68%, 0%, 42%, 20%)

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.

Galapagos
noun

The Ecuadorian volcanic archipelago — Darwin's evolutionary laboratory — and the saturated blue-green of Galapagos lagoon water at Bartolomé Island. Galapagos refers to the cove at Bartolomé: a saturated, slightly cool deep blue-green with the optical clarity of cold Pacific upwelling waters.

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.

#40cb76
Original
#cbba70
Protanopia
#baae7c
Deuteranopia
#00c8b6
Tritanopia
#a7a7a7
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
2.10:1
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
10.02:1

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
##40CB76
Display P3
Display P3
color(display-p3 0.4212 0.7852 0.4946)
P3 has subtle headroomOKLCH chroma 0.170

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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