colors
Back to gallery

Open Fenugreek

#178b6f
Notes

Open Fenugreek (#178B6F) is a deep teal 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 (166°, 72%, 32%) 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
#178b6f
RGB
rgb(23, 139, 111)
HSL
hsl(166, 72%, 32%)
HWB
hwb(166 9% 45%)
OKLCH
oklch(57.0% 0.106 171.2)
HSV
hsv(166, 83%, 55%)
LAB
lab(51.60% -37.44 6.39)
LCH
lch(51.60% 37.98 170.32)
CMYK
cmyk(83%, 0%, 20%, 45%)

Etymology

Open
adjective

Old English open, unobstructed — used as a color modifier since the eighteenth century for hues that read as airy or uncrowded. Open blue, open green: moderate saturation combined with optical spaciousness, the slight visual breath of a hue that doesn't crowd the surface it covers. Sits at the crisp-bucket center alongside clear.

Fenugreek
noun

Trigonella foenum-graecum, the Mediterranean and South Asian legume whose seeds are essential to Indian and Ethiopian cooking. The color refers to fresh fenugreek leaves (called methi in Hindi): a soft, slightly cool deep yellow-green-blue with the matte finish of pinnate trifoliate leaf.

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.

#178b6f
Original
#87816e
Protanopia
#787771
Deuteranopia
#008c83
Tritanopia
#707070
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).
AA Largeon White
4.23:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
4.96:1

Related Colors

Canvas