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Mapped Helen Lagoon

#23b5db
Notes

Mapped Helen Lagoon (#23B5DB) 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 (192°, 72%, 50%) 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
#23b5db
RGB
rgb(35, 181, 219)
HSL
hsl(192, 72%, 50%)
HWB
hwb(192 14% 14%)
OKLCH
oklch(71.8% 0.125 221.2)
P3
color(display-p3 0.3421 0.6995 0.8427)
HSV
hsv(192, 84%, 86%)
LAB
lab(68.40% -23.36 -29.42)
LCH
lch(68.40% 37.57 231.54)
CMYK
cmyk(84%, 17%, 0%, 14%)

Etymology

Mapped
adjective

Latin mappa, cloth / napkin — past-participle of map. As a color modifier, mapped implies a clear-and-cartographic-and-surveyed quality, the crisp color of Ordnance-Survey-and-USGS scientific-and-cadastral cartographic-and-topographic mapping-and-projection. Sits at the crisp-and-mapped end of the grid, parallel to plotted and surveyed in usage.

Helen
modifier

Greek Ἑλένη, Helen-of-Troy. As a color modifier, helen implies a Helen-of-Troy-and-fairest-face quality, the visual register of Helen-of-Troy-and-Tyndareus-Sparta hand-Helen-of-Troy-and-fairest-face Helen-of-Troy-and-Tyndareus-Sparta-and-Iliad-Homeric helen-and-Helen-of-Troy-and-fairest-face surfaces under Helen-of-Troy-and-Tyndareus-Sparta-and-Iliad-Homeric Mycenaean-and-Trojan Bronze-Age-Aegean-light. Sits at the modifier-and-myth end of the grid, parallel to eros and hera 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.

#23b5db
Original
#9eb0dd
Protanopia
#879fdb
Deuteranopia
#00c1c1
Tritanopia
#999999
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
2.41:1
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
8.70:1

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
##23B5DB
Display P3
Display P3
color(display-p3 0.3421 0.6995 0.8427)
P3 has subtle headroomOKLCH chroma 0.125

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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