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Inviting Lone Kingfisher

#2aa1b1
Notes

Inviting Lone Kingfisher (#2AA1B1) 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 (187°, 62%, 43%) 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
#2aa1b1
RGB
rgb(42, 161, 177)
HSL
hsl(187, 62%, 43%)
HWB
hwb(187 16% 31%)
OKLCH
oklch(65.3% 0.102 208.5)
P3
color(display-p3 0.3177 0.6224 0.6847)
HSV
hsv(187, 76%, 69%)
LAB
lab(60.92% -26.26 -17.54)
LCH
lch(60.92% 31.58 213.73)
CMYK
cmyk(76%, 9%, 0%, 31%)

Etymology

Inviting
adjective

Latin invītāre, to invite — present-participle of invite. As a color modifier, inviting implies a clear-and-cordial-and-encouraging quality where the hue carries the visual register of warm-inviting-and-encouraging entrance-foyer color tone. Sits at the crisp-and-cheerful end of the grid, parallel to welcoming and hospitable in usage.

Lone
modifier

Middle English lone, shortened from alone. As a color modifier, lone implies a solitary-and-singular-and-isolated quality, the visual register of Caspar-David-Friedrich-Wanderer-and-lone-pine hand-solitary-and-singular-and-isolated Caspar-David-Friedrich-Wanderer-and-lone-pine-and-Romantic-vista loned-and-solitary-and-singular-and-isolated surfaces under Caspar-David-Friedrich-Wanderer-and-lone-pine-and-Romantic-vista mountaintop-and-empty-shore single-figure-light. Sits at the modifier-and-mood end of the grid, parallel to void and drear in usage.

Kingfisher
noun

The family Alcedinidae — particularly Alcedo atthis, the European common kingfisher whose iridescent turquoise-blue plumage gives the color its name. The color refers to a male European kingfisher's wing: a saturated, slightly cool deep blue-green with the iridescent satin finish of structurally colored feathers.

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.

#2aa1b1
Original
#929bb2
Protanopia
#808db1
Deuteranopia
#00a9a6
Tritanopia
#898989
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
3.07:1
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
6.83:1

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
##2AA1B1
Display P3
Display P3
color(display-p3 0.3177 0.6224 0.6847)
P3 has subtle headroomOKLCH chroma 0.102

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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