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Calm Tied Verdigris

#54bcb5
Notes

Calm Tied Verdigris (#54BCB5) is a true cyan 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 (176°, 44%, 53%) 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
#54bcb5
RGB
rgb(84, 188, 181)
HSL
hsl(176, 44%, 53%)
HWB
hwb(176 33% 26%)
OKLCH
oklch(73.2% 0.097 189.3)
HSV
hsv(176, 55%, 74%)
LAB
lab(70.31% -31.66 -5.58)
LCH
lch(70.31% 32.15 189.99)
CMYK
cmyk(55%, 0%, 4%, 26%)

Etymology

Calm
adjective

Latin calma, heat of the day — paradoxically drifted in Italian to mean stillness. Used as a color modifier since the seventeenth century for hues that read as untroubled. Calm blue, calm gray: moderate saturation combined with optical quiet. Sits at the crisp-bucket near quiet and steady.

Tied
modifier

Old English tīgan, to-tie or to-bind. As a color modifier, tied implies a hand-tied-and-knotted quality, the visual register of hand-tied-and-knotted-rope-and-string hand-tied-and-knotted-fishing-net-and-shoelace-and-bow hand-tied-and-knotted-rope-and-cord surfaces under hand-tied-and-knotted-rope-and-cord working-light. Sits at the modifier-and-texture end of the grid, parallel to sewn and knot 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.

#54bcb5
Original
#b3b3b5
Protanopia
#a2a7b6
Deuteranopia
#00c0ba
Tritanopia
#a5a5a5
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
2.27:1
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
9.24:1

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