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Genuine Lintel Lagoon

#25bcd3
Notes

Genuine Lintel Lagoon (#25BCD3) 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 (188°, 70%, 49%) 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
#25bcd3
RGB
rgb(37, 188, 211)
HSL
hsl(188, 70%, 49%)
HWB
hwb(188 15% 17%)
OKLCH
oklch(73.2% 0.121 211.0)
P3
color(display-p3 0.3567 0.7266 0.8152)
HSV
hsv(188, 82%, 83%)
LAB
lab(70.22% -29.32 -22.25)
LCH
lch(70.22% 36.80 217.19)
CMYK
cmyk(82%, 11%, 0%, 17%)

Etymology

Genuine
adjective

Latin genuinus, natural, innate — used as a color modifier since the sixteenth century for hues that read as authentic rather than imitated. Genuine indigo, genuine ochre: moderate-to-high saturation combined with the optical impression of a hue from real pigment rather than synthetic dye. Sits at the crisp-bucket alongside true and honest.

Lintel
modifier

Old English lyn-trigan, threshold-beam. As a color modifier, lintel implies a horizontal-load-bearing-beam-above-door quality, the visual register of Stonehenge-and-medieval-stone-lintel hand-cut horizontal-load-bearing stone-and-timber lintel-above-door architectural surfaces under medieval-stone-and-timber lintel-above-door light. Sits at the modifier-and-architecture end of the grid, parallel to sill and truss 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.

#25bcd3
Original
#a9b5d4
Protanopia
#93a5d3
Deuteranopia
#00c6c3
Tritanopia
#9e9e9e
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
2.28:1
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
9.21:1

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
##25BCD3
Display P3
Display P3
color(display-p3 0.3567 0.7266 0.8152)
P3 has subtle headroomOKLCH chroma 0.121

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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