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Organized Saint Lagoon

#42bbdb
Notes

Organized Saint Lagoon (#42BBDB) is a true cyan with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (193°, 68%, 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
#42bbdb
RGB
rgb(66, 187, 219)
HSL
hsl(193, 68%, 56%)
HWB
hwb(193 26% 14%)
OKLCH
oklch(73.8% 0.114 219.1)
HSV
hsv(193, 70%, 86%)
LAB
lab(70.74% -23.17 -25.77)
LCH
lch(70.74% 34.66 228.04)
CMYK
cmyk(70%, 15%, 0%, 14%)

Etymology

Organized
adjective

Greek órganon, instrument / tool — past-participle of organize. As a color modifier, organized implies a clear-and-coordinated-and-systematic quality where the hue carries the visual register of well-coordinated-and-classified arrangement. Sits at the crisp-and-orderly end of the grid, parallel to orderly and methodical in usage.

Saint
modifier

Latin sanctus, holy. As a color modifier, saint implies a hagiographic-and-relic quality, the visual register of Greek-Orthodox-and-Roman-Catholic-Saint hand-painted icon-and-relic-and-halo-and-iconostasis hagiographic surfaces under Greek-Orthodox-and-Roman-Catholic hand-painted icon-and-iconostasis hagiographic-tradition candlelight. Sits at the modifier-and-cultural end of the grid, parallel to monk and friar in usage.

Lagoon
noun

A shallow body of saltwater partially or fully enclosed by a barrier — coral atoll lagoons in the Pacific, Venice's Laguna Veneta, the Florida Keys' backcountry. The color refers to the average reflectance of a calm tropical lagoon at midday: a saturated, slightly muted blue-green with the optical clarity of shallow water over white sand. Brighter than reef, cooler than aquamarine, with the postcard weight of a Pacific atoll seen from above.

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

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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.

#42bbdb
Original
#a7b6dd
Protanopia
#92a6db
Deuteranopia
#00c6c5
Tritanopia
#a4a4a4
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
2.24:1
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
9.36:1

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