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Refulgent Draco Jade

#40bc77
Notes

Refulgent Draco Jade (#40BC77) is a true teal with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (147°, 49%, 49%) 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
#40bc77
RGB
rgb(64, 188, 119)
HSL
hsl(147, 49%, 49%)
HWB
hwb(147 25% 26%)
OKLCH
oklch(71.0% 0.149 155.0)
P3
color(display-p3 0.3980 0.7273 0.4904)
HSV
hsv(147, 66%, 74%)
LAB
lab(68.30% -49.89 25.17)
LCH
lch(68.30% 55.88 153.23)
CMYK
cmyk(66%, 0%, 37%, 26%)

Etymology

Refulgent
adjective

Latin refulgēns, shining-back — present-participle of refulgere, sharing root with fulgor (lightning). As a color modifier, refulgent implies a saturated-and-reflective-shining quality, the bright color of polished-bronze-and-armor reflective-surface mid-day-sun reflection. Sits at the bright-and-saturated end of the grid, parallel to effulgent and resplendent in usage.

Draco
modifier

Latin draco, dragon-of-the-northern-sky. As a color modifier, draco implies a winding-northern-circumpolar-dragon quality, the visual register of Draco-circumpolar-and-northern-dragon hand-winding-northern-circumpolar-dragon Draco-circumpolar-and-northern-dragon-and-Bortle-1-sky draco-and-winding-northern-circumpolar surfaces under Draco-circumpolar-and-northern-dragon-and-Bortle-1-sky year-round-northern-circumpolar polar-stellar-light. Sits at the modifier-and-cosmic end of the grid, parallel to cygnus and lyra in usage.

Jade
noun

Two minerals share the name: nephrite (a calcium-magnesium silicate, dominant in Chinese jade) and jadeite (a sodium-aluminum silicate, dominant in Burmese imperial jade). Both have been carved in China since at least the Neolithic. The color refers to high-quality apple-green jadeite: a saturated, slightly muted yellow-green with the waxy translucency of polished stone. Cooler than apple, warmer than mint, with the millennial cultural weight of yu, the stone of heaven.

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.

#40bc77
Original
#bbad72
Protanopia
#aba27b
Deuteranopia
#00baaa
Tritanopia
#9d9d9d
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
2.42:1
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
8.68:1

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
##40BC77
Display P3
Display P3
color(display-p3 0.3980 0.7273 0.4904)
P3 has subtle headroomOKLCH chroma 0.149

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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