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Buttoned Sleet Verdigris

#40aca2
Notes

Buttoned Sleet Verdigris (#40ACA2) 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 (174°, 46%, 46%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#40aca2
RGB
rgb(64, 172, 162)
HSL
hsl(174, 46%, 46%)
HWB
hwb(174 25% 33%)
OKLCH
oklch(68.0% 0.099 186.6)
P3
color(display-p3 0.3741 0.6656 0.6340)
HSV
hsv(174, 63%, 67%)
LAB
lab(64.32% -32.91 -3.97)
LCH
lch(64.32% 33.15 186.88)
CMYK
cmyk(63%, 0%, 6%, 33%)

Etymology

Buttoned
adjective

Old French bouton, button — past-participle of button. As a color modifier, buttoned implies a clear-and-fastened-and-formal quality, the crisp color of Edwardian-period formal-attire fully-fastened-and-formally-dressed gentleman's-attire. Sits at the crisp-and-finished end of the grid, parallel to trim and pressed in usage.

Sleet
modifier

Middle English slete, icy-rain-or-snow-rain-mix. As a color modifier, sleet implies an icy-rain-and-half-frozen-and-driven quality, the visual register of North-Sea-and-Yorkshire-Moors-sleet hand-icy-rain-and-half-frozen-and-driven North-Sea-and-Yorkshire-Moors-sleet-and-Pennine-pass sleet-and-icy-rain-and-half-frozen surfaces under North-Sea-and-Yorkshire-Moors-sleet-and-Pennine-pass Yorkshire-Moors-and-Pennine-Way-and-Cleveland-Hills North-Sea-front-light. Sits at the modifier-and-weather end of the grid, parallel to hail and rime in usage.

Verdigris
noun

The basic copper carbonate that forms on weathered copper and bronze — the pigment scraped from oxidized metal and used in Renaissance painting before being supplanted by more stable greens. The color refers to a thick verdigris on aged copper roofing or the Statue of Liberty's surface: a soft, slightly muted blue-green with the powdery finish of mineral oxide. Cooler than patina, warmer than seafoam, with the archaeological weight of a mineral made by time.

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.

#40aca2
Original
#a3a3a2
Protanopia
#9397a3
Deuteranopia
#00b0a9
Tritanopia
#949494
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
2.75:1
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
7.64:1

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
##40ACA2
Display P3
Display P3
color(display-p3 0.3741 0.6656 0.6340)
P3 has subtle headroomOKLCH chroma 0.099

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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