colors
Back to gallery

Sanitary Swoop Turquoise

#156162
Notes

Sanitary Swoop Turquoise (#156162) is a deep cyan with a jewel character. It carries the deep, saturated richness of a gemstone. Authoritative and slightly formal, it works well for type and heavy UI elements. Its HSL profile (181°, 65%, 23%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. 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
#156162
RGB
rgb(21, 97, 98)
HSL
hsl(181, 65%, 23%)
HWB
hwb(181 8% 62%)
OKLCH
oklch(45.0% 0.070 196.3)
P3
color(display-p3 0.1806 0.3747 0.3811)
HSV
hsv(181, 79%, 38%)
LAB
lab(37.10% -21.42 -7.05)
LCH
lch(37.10% 22.55 198.23)
CMYK
cmyk(79%, 1%, 0%, 62%)

Etymology

Sanitary
adjective

Latin sānitās, health — adjectival suffix -ary. As a color modifier, sanitary implies a clear-and-clean-and-medical quality, the crisp color of Bauhaus-and-Modern clinical-and-hospital interior-architecture white-tile-and-stainless-steel surfaces. Sits at the crisp-and-clean end of the grid, parallel to hygienic and sterile in usage.

Swoop
modifier

Old English swāpan, to-sweep-down. As a color modifier, swoop implies a fast-descending-and-arcing-down quality, the visual register of peregrine-falcon-and-stooping-hawk-swoop hand-fast-descending-and-arcing-down peregrine-falcon-and-stooping-hawk-and-eagle swooped-and-fast-descending-and-arcing-down surfaces under peregrine-falcon-and-stooping-hawk-and-eagle cliff-face-and-moorland-and-open-sky raptor-stoop-light. Sits at the modifier-and-mood end of the grid, parallel to flit and glide in usage.

Turquoise
noun

The hydrated copper-aluminum phosphate mined in Persia and the American Southwest for thousands of years — the firuze of Iran, the chalchihuitl of Mesoamerica, the heart of Pueblo and Navajo silverwork. The color refers to a fine Sleeping Beauty turquoise from Arizona: a saturated, slightly green-shifted blue with the slight matrix of host-rock veining. Brighter than persian, lighter than cerulean.

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.

#156162
Original
#5a5c62
Protanopia
#4f5462
Deuteranopia
#006461
Tritanopia
#515151
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).
AAAon White
7.20:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.92:1

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
##156162
Display P3
Display P3
color(display-p3 0.1806 0.3747 0.3811)
Inside sRGBOKLCH chroma 0.070

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

Related Colors

Canvas