colors
Back to gallery

Easy Domus Lagoon

#2bbdda
Notes

Easy Domus Lagoon (#2BBDDA) 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 (190°, 70%, 51%) 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
#2bbdda
RGB
rgb(43, 189, 218)
HSL
hsl(190, 70%, 51%)
HWB
hwb(190 17% 15%)
OKLCH
oklch(73.8% 0.122 215.1)
P3
color(display-p3 0.3659 0.7306 0.8410)
HSV
hsv(190, 80%, 85%)
LAB
lab(70.85% -27.08 -25.10)
LCH
lch(70.85% 36.92 222.83)
CMYK
cmyk(80%, 13%, 0%, 15%)

Etymology

Easy
adjective

Old French aisié, comfortable, at rest — used as a color modifier since the eighteenth century for hues that read as visually undemanding. Easy beige, easy gray: moderate saturation combined with optical restfulness. Sits at the crisp-bucket center alongside calm and settled.

Domus
modifier

Latin domus, house-or-home. As a color modifier, domus implies a Latin-house-and-Roman-domus-and-atrium quality, the visual register of Pompeian-domus-and-Roman-atrium hand-Latin-house-and-Roman-domus-and-atrium Pompeian-domus-and-Roman-atrium-and-impluvium domus-and-Latin-house surfaces under Pompeian-domus-and-Roman-atrium-and-impluvium Pompeian-and-Herculaneum-domus Roman-villa-light. Sits at the modifier-and-Latin end of the grid, parallel to arbor and via 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.

#2bbdda
Original
#a9b7dc
Protanopia
#92a6da
Deuteranopia
#00c8c6
Tritanopia
#a0a0a0
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
9.39:1

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
##2BBDDA
Display P3
Display P3
color(display-p3 0.3659 0.7306 0.8410)
P3 has subtle headroomOKLCH chroma 0.122

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.

Related Colors

Canvas