colors
Back to gallery

Smooth Meek Lagoon

#31adce
Notes

Smooth Meek Lagoon (#31ADCE) is a true cyan with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (193°, 62%, 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
#31adce
RGB
rgb(49, 173, 206)
HSL
hsl(193, 62%, 50%)
HWB
hwb(193 19% 19%)
OKLCH
oklch(69.6% 0.114 220.2)
P3
color(display-p3 0.3483 0.6689 0.7934)
HSV
hsv(193, 76%, 81%)
LAB
lab(65.74% -22.26 -26.33)
LCH
lch(65.74% 34.48 229.79)
CMYK
cmyk(76%, 16%, 0%, 19%)

Etymology

Smooth
adjective

Old English smōþ, level, polished — used as a color modifier since the seventeenth century for hues that read as continuous without texture or break. Smooth tan, smooth gray: moderate saturation combined with optical evenness. Sits in the crisp-bucket alongside even.

Meek
modifier

Old Norse mjúkr, soft-and-gentle. As a color modifier, meek implies a hushed-and-self-effacing-and-quiet quality, the visual register of Beatitude-and-Quaker-meeting-meek hand-bowed-and-self-effacing-and-quiet Beatitude-and-Quaker-meeting-and-monastic-cloister meek-and-bowed-and-quieted surfaces under Beatitude-and-Quaker-meeting-and-monastic-cloister hush-and-bowed-vigil candle-lit-light. Sits at the modifier-and-mood end of the grid, parallel to coy and mute 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.

#31adce
Original
#99a8d0
Protanopia
#8499ce
Deuteranopia
#00b8b8
Tritanopia
#959595
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
2.63:1
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
8.00:1

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
##31ADCE
Display P3
Display P3
color(display-p3 0.3483 0.6689 0.7934)
P3 has subtle headroomOKLCH chroma 0.114

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