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Ostentatious Boba

#4ef3df
Notes

Ostentatious Boba (#4EF3DF) is a true teal with a neon character. It sits at the high-saturation edge of its family. Use it sparingly, as signage, accent, or highlight against darker surfaces. Its HSL profile (173°, 87%, 63%) places it in the highly saturated band at a mid 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#4ef3df
RGB
rgb(78, 243, 223)
HSL
hsl(173, 87%, 63%)
HWB
hwb(173 31% 5%)
OKLCH
oklch(87.5% 0.137 183.4)
HSV
hsv(173, 68%, 95%)
LAB
lab(87.51% -46.58 -2.73)
LCH
lch(87.51% 46.66 183.35)
CMYK
cmyk(68%, 0%, 8%, 5%)

Etymology

Ostentatious
adjective

Latin ostentātiōnis, display — adjectival suffix -ous, derived from ostendere (to show). As a color modifier, ostentatious implies a saturated-and-attention-demanding-and-elaborate quality, the bright color of Belle-Époque-and-Gilded-Age showy-luxury-display interior-decoration. Sits at the bright-and-flamboyant end of the grid, parallel to flamboyant and showy in usage.

Boba
noun

The Taiwanese bubble tea — black tea or matcha with chewy tapioca pearls — popularized worldwide since the 1980s. Boba in matcha-flavored form refers to a shaken matcha boba: a saturated, slightly cool deep blue-green with the satin finish of milky matcha liquor through the clear cup.

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.

#4ef3df
Original
#e8e5de
Protanopia
#d0d4e1
Deuteranopia
#00f8ed
Tritanopia
#cecece
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
1.38:1
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
15.21:1

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