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Plain Monk Lagoon

#36b0d0
Notes

Plain Monk Lagoon (#36B0D0) 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 (192°, 62%, 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
#36b0d0
RGB
rgb(54, 176, 208)
HSL
hsl(192, 62%, 51%)
HWB
hwb(192 21% 18%)
OKLCH
oklch(70.5% 0.113 219.5)
P3
color(display-p3 0.3614 0.6807 0.8015)
HSV
hsv(192, 74%, 82%)
LAB
lab(66.81% -22.58 -25.78)
LCH
lch(66.81% 34.27 228.79)
CMYK
cmyk(74%, 15%, 0%, 18%)

Etymology

Plain
adjective

Latin planus, flat, level — used as a color modifier since the medieval period for hues that read as undecorated and direct. Plain white, plain blue: moderate saturation, no shift, no surface effect. Sits in the crisp-bucket center, with the implication of restraint rather than absence.

Monk
modifier

Latin monachus, solitary-religious-man. As a color modifier, monk implies a Cistercian-and-Benedictine-monastic quality, the visual register of Cistercian-and-Benedictine-Monk hand-spun robe-and-cowl-and-scapular Cistercian-and-Benedictine-and-Trappist-monastic surfaces under Cistercian-and-Benedictine-Trappist-monastic hand-spun-robe candlelit-cloister light. Sits at the modifier-and-cultural end of the grid, parallel to friar and nun 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.

#36b0d0
Original
#9cabd2
Protanopia
#879cd0
Deuteranopia
#00bbba
Tritanopia
#989898
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
2.54:1
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
8.28:1

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
##36B0D0
Display P3
Display P3
color(display-p3 0.3614 0.6807 0.8015)
P3 has subtle headroomOKLCH chroma 0.113

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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