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Peaceful Haori Lagoon

#27b2ca
Notes

Peaceful Haori Lagoon (#27B2CA) 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 (189°, 68%, 47%) 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
#27b2ca
RGB
rgb(39, 178, 202)
HSL
hsl(189, 68%, 47%)
HWB
hwb(189 15% 21%)
OKLCH
oklch(70.4% 0.115 212.7)
P3
color(display-p3 0.3419 0.6880 0.7799)
HSV
hsv(189, 81%, 79%)
LAB
lab(66.93% -27.08 -22.32)
LCH
lch(66.93% 35.10 219.50)
CMYK
cmyk(81%, 12%, 0%, 21%)

Etymology

Peaceful
adjective

Latin pāx, peace — adjectival suffix -ful. As a color modifier, peaceful implies a clear-and-restful-and-calm quality where the hue carries the visual register of Quaker-meeting-house still-and-meditative interior atmosphere. Sits at the crisp-and-calm end of the grid, parallel to serene and placid in usage.

Haori
modifier

Japanese haori, short-jacket-over-kimono. As a color modifier, haori implies a Japanese-haori-and-short-jacket-over-kimono quality, the visual register of Edo-and-Meiji-haori-jacket hand-Japanese-haori-and-short-jacket-over-kimono Edo-and-Meiji-haori-jacket-and-Kyoto-Nishijin-and-Tokyo-Asakusa haori-and-Japanese-haori-and-short-jacket surfaces under Edo-and-Meiji-haori-jacket-and-Kyoto-Nishijin-and-Tokyo-Asakusa Edo-Tokugawa-and-Meiji-Tokyo Japanese-jacket-light. Sits at the modifier-and-textile end of the grid, parallel to kimono and sari 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.

#27b2ca
Original
#a0accb
Protanopia
#8a9cca
Deuteranopia
#00bcb9
Tritanopia
#969696
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
2.53:1
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
8.31:1

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
##27B2CA
Display P3
Display P3
color(display-p3 0.3419 0.6880 0.7799)
P3 has subtle headroomOKLCH chroma 0.115

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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