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Untroubled Cumin Lagoon

#66dee3
Notes

Untroubled Cumin Lagoon (#66DEE3) 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 (182°, 69%, 65%) 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
#66dee3
RGB
rgb(102, 222, 227)
HSL
hsl(182, 69%, 65%)
HWB
hwb(182 40% 11%)
OKLCH
oklch(83.4% 0.108 199.0)
P3
color(display-p3 0.5261 0.8600 0.8832)
HSV
hsv(182, 55%, 89%)
LAB
lab(82.17% -32.12 -12.68)
LCH
lch(82.17% 34.53 201.54)
CMYK
cmyk(55%, 2%, 0%, 11%)

Etymology

Untroubled
adjective

Latin turbāre, to disturb — negative-prefix un- plus past-participle of trouble. As a color modifier, untroubled implies a clear-and-calm-and-undisturbed quality where the hue carries no visual agitation. Sits at the crisp-and-calm end of the grid, parallel to serene and placid in usage.

Cumin
modifier

Greek κύμινον, aromatic-Levantine-seed. As a color modifier, cumin implies a warm-Levantine-and-North-African-and-Mughal quality, the visual register of Levantine-and-North-African-and-Mughal-cumin hand-warm-Levantine-and-North-African-and-Mughal Levantine-and-North-African-and-Mughal-cumin-and-Aleppo-and-Marrakesh cumin-and-warm-Levantine surfaces under Levantine-and-North-African-and-Mughal-cumin-and-Aleppo-and-Marrakesh Aleppo-and-Marrakesh-and-Lahore Levantine-spice-light. Sits at the modifier-and-flavor end of the grid, parallel to caraway and pepper 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

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.

#66dee3
Original
#d0d5e4
Protanopia
#bcc6e4
Deuteranopia
#00e5df
Tritanopia
#c5c5c5
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
1.60:1
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
13.12:1

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
##66DEE3
Display P3
Display P3
color(display-p3 0.5261 0.8600 0.8832)
P3 has subtle headroomOKLCH chroma 0.108

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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