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Utilitarian Türkis

#186d2d
Notes

Utilitarian Türkis (#186D2D) is a deep green 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 (135°, 64%, 26%) 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 magenta. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#186d2d
RGB
rgb(24, 109, 45)
HSL
hsl(135, 64%, 26%)
HWB
hwb(135 9% 57%)
OKLCH
oklch(47.1% 0.126 147.3)
HSV
hsv(135, 78%, 43%)
LAB
lab(40.11% -39.33 28.46)
LCH
lch(40.11% 48.54 144.10)
CMYK
cmyk(78%, 0%, 59%, 57%)

Etymology

Utilitarian
adjective

Latin ūtilitās, usefulness — adjectival suffix -ian. As a color modifier, utilitarian implies a clear-and-purpose-fit-and-stripped-down quality, the crisp color of Shaker-and-Quaker anti-ornamental functional-and-no-frills craft tradition. Sits at the crisp-and-functional end of the grid, parallel to functional and workmanlike in usage.

Türkis
noun

The German word for turquoise — borrowed via medieval Italian turchese (Turkish stone). Used in German jewelry vocabulary for the saturated blue-green of Iranian and American Southwest turquoise. The color refers to a Sleeping Beauty türkis cabochon: a saturated, slightly cool deep blue-green. The Germanic cousin of turquoise.

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

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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.

#186d2d
Original
#6e6327
Protanopia
#655c32
Deuteranopia
#006a5f
Tritanopia
#565656
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).
AAon White
6.43:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.26:1

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