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Dependable Norn Lagoon

#37bcdd
Notes

Dependable Norn Lagoon (#37BCDD) 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°, 71%, 54%) 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
#37bcdd
RGB
rgb(55, 188, 221)
HSL
hsl(192, 71%, 54%)
HWB
hwb(192 22% 13%)
OKLCH
oklch(73.9% 0.120 218.6)
P3
color(display-p3 0.3822 0.7270 0.8518)
HSV
hsv(192, 75%, 87%)
LAB
lab(70.87% -24.42 -26.69)
LCH
lch(70.87% 36.17 227.54)
CMYK
cmyk(75%, 15%, 0%, 13%)

Etymology

Dependable
adjective

Latin dē-pendere, to hang from — adjectival suffix -able. As a color modifier, dependable implies a clear-and-trustworthy-and-consistent quality where the hue carries the visual register of consistently-performing-and-counted-on design-element. Sits at the crisp-and-honest end of the grid, parallel to reliable and trustworthy in usage.

Norn
modifier

Old Norse norn, Norse-fate-weaver. As a color modifier, norn implies a Norse-fate-weaver-and-Urd-Verdandi-Skuld quality, the visual register of Norse-Norns-and-Urd-Verdandi-Skuld hand-Norse-fate-weaver-and-Urd-Verdandi-Skuld Norse-Norns-and-Urd-Verdandi-Skuld-and-Yggdrasil-roots norn-and-Norse-fate-weaver surfaces under Norse-Norns-and-Urd-Verdandi-Skuld-and-Yggdrasil-roots Well-of-Urd-and-loom-of-fate fate-weaver-light. Sits at the modifier-and-myth end of the grid, parallel to vala and rune 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.

#37bcdd
Original
#a7b7df
Protanopia
#91a6dd
Deuteranopia
#00c7c6
Tritanopia
#a2a2a2
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
2.23:1
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
9.40:1

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
##37BCDD
Display P3
Display P3
color(display-p3 0.3822 0.7270 0.8518)
P3 has subtle headroomOKLCH chroma 0.120

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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