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Calm Echeveria

#4bd1bd
Notes

Calm Echeveria (#4BD1BD) is a true teal 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 (171°, 59%, 56%) 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
#4bd1bd
RGB
rgb(75, 209, 189)
HSL
hsl(171, 59%, 56%)
HWB
hwb(171 29% 18%)
OKLCH
oklch(78.3% 0.119 181.3)
HSV
hsv(171, 64%, 82%)
LAB
lab(76.54% -40.89 -0.78)
LCH
lch(76.54% 40.89 181.10)
CMYK
cmyk(64%, 0%, 10%, 18%)

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.

Echeveria
noun

The genus Echeveria — Mexican rosette-forming succulents named for the eighteenth-century botanical illustrator Atanasio Echeverría y Godoy. Cultivated globally as ornamental plants for their geometric blue-green form. The color refers to a fresh Echeveria elegans rosette: a soft, slightly cool silver-green-blue with the matte velvet finish of waxy succulent leaves.

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.

#4bd1bd
Original
#c8c5bc
Protanopia
#b4b7bf
Deuteranopia
#00d5cb
Tritanopia
#b3b3b3
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
1.88:1
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
11.15:1

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