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Imperial Tahiti

#138e48
Notes

Imperial Tahiti (#138E48) 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 (146°, 76%, 32%) places it in the highly saturated band at a dark lightness. Best used in small doses, like logos, CTAs, focus rings, or highlight text, where its saturation becomes a feature rather than noise. 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
#138e48
RGB
rgb(19, 142, 72)
HSL
hsl(146, 76%, 32%)
HWB
hwb(146 7% 44%)
OKLCH
oklch(56.8% 0.146 151.5)
HSV
hsv(146, 87%, 56%)
LAB
lab(51.78% -47.69 28.49)
LCH
lch(51.78% 55.55 149.15)
CMYK
cmyk(87%, 0%, 49%, 44%)

Etymology

Imperial
adjective

From the Latin imperialis, of the empire — applied to color since the medieval period for the hues reserved for sovereigns and empires: imperial purple of Tyrian dye, imperial yellow of Ming-dynasty porcelain. As a modifier, imperial implies saturation combined with the institutional weight of a color owned by a court. Sits in the bold-and-deep corner, alongside royal.

Tahiti
noun

The largest island of French Polynesia — and the saturated blue-green of Tahitian lagoons surrounded by coral reef. Tahiti color refers to a Tahitian lagoon at midday: a saturated, slightly cool deep blue-green with the optical clarity of shallow tropical water over white coral sand.

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.

#138e48
Original
#8e8142
Protanopia
#81784d
Deuteranopia
#008c7d
Tritanopia
#6f6f6f
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
4.21:1
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
4.99:1

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