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Trustworthy Knot Verdigris

#2fa4a0
Notes

Trustworthy Knot Verdigris (#2FA4A0) is a true cyan 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 (178°, 55%, 41%) 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
#2fa4a0
RGB
rgb(47, 164, 160)
HSL
hsl(178, 55%, 41%)
HWB
hwb(178 18% 36%)
OKLCH
oklch(65.5% 0.101 191.6)
P3
color(display-p3 0.3306 0.6341 0.6241)
HSV
hsv(178, 71%, 64%)
LAB
lab(61.39% -32.30 -7.25)
LCH
lch(61.39% 33.11 192.64)
CMYK
cmyk(71%, 0%, 2%, 36%)

Etymology

Trustworthy
adjective

Old English trēow, trust — adjectival suffix -worthy. As a color modifier, trustworthy implies a clear-and-reliable-and-honest quality where the hue carries the visual register of confidence-deserving-and-faithful-performance design-element. Sits at the crisp-and-honest end of the grid, parallel to reliable and dependable in usage.

Knot
modifier

Old English cnotta, knot. As a color modifier, knot implies a sailor's-rope-knot quality, the visual register of Royal-Navy-and-merchant-marine-knot hand-tied sailor's-rope-and-line bowline-and-figure-eight-and-clove-hitch maritime-rigging surfaces under tall-ship-and-frigate sailor's-knot-and-line working light. Sits at the modifier-and-nautical end of the grid, parallel to sheet and spar 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.

#2fa4a0
Original
#9a9ba0
Protanopia
#898fa1
Deuteranopia
#00a9a2
Tritanopia
#8b8b8b
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).
AA Largeon White
3.03:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
6.94:1

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
##2FA4A0
Display P3
Display P3
color(display-p3 0.3306 0.6341 0.6241)
P3 has subtle headroomOKLCH chroma 0.101

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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