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Awakening Bì

#66bb4a
Notes

Awakening Bì (#66BB4A) 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 (105°, 45%, 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 violet. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#66bb4a
RGB
rgb(102, 187, 74)
HSL
hsl(105, 45%, 51%)
HWB
hwb(105 29% 27%)
OKLCH
oklch(71.4% 0.171 138.7)
P3
color(display-p3 0.4817 0.7253 0.3502)
HSV
hsv(105, 60%, 73%)
LAB
lab(68.65% -46.72 48.26)
LCH
lch(68.65% 67.17 134.07)
CMYK
cmyk(45%, 0%, 60%, 27%)

Etymology

Awakening
adjective

Old English āwacnian, to awaken — present-participle of awaken. As a color modifier, awakening implies a saturated-and-rousing-and-fresh quality, the bright color of spring-dawn and first-light atmospheric-stimulation. Sits at the bright-and-active end of the grid, parallel to quickening and rousing in usage.

noun

The Chinese word for bluish-green jade — used for the deepest, most saturated jade-green color and the green of bì-yù (jadeite). The color refers to a polished imperial bì-yù cabochon: a saturated, slightly cool deep green-blue with the satin finish of fine jade. Cooler than midori.

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.

#66bb4a
Original
#c0ac3e
Protanopia
#b5a553
Deuteranopia
#60b5a3
Tritanopia
#a1a1a1
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
2.39:1
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
8.77:1

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
##66BB4A
Display P3
Display P3
color(display-p3 0.4817 0.7253 0.3502)
P3 has subtle headroomOKLCH chroma 0.171

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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