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Frank Smock Turquoise

#03abb8
Notes

Frank Smock Turquoise (#03ABB8) is a true 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 (184°, 97%, 37%) 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
#03abb8
RGB
rgb(3, 171, 184)
HSL
hsl(184, 97%, 37%)
HWB
hwb(184 1% 28%)
OKLCH
oklch(67.6% 0.115 204.4)
P3
color(display-p3 0.2996 0.6605 0.7125)
HSV
hsv(184, 98%, 72%)
LAB
lab(63.84% -31.43 -17.06)
LCH
lch(63.84% 35.77 208.50)
CMYK
cmyk(98%, 7%, 0%, 28%)

Etymology

Frank
adjective

From the Old French franc, free, sincere — used as a color modifier since the seventeenth century for hues that read as direct and unhedged. Frank red, frank brown: moderate-to-high saturation combined with optical directness. Sits at the crisp-bucket alongside direct and honest.

Smock
modifier

Old English smoc, loose-shift-or-shepherd's-smock. As a color modifier, smock implies a shepherd's-smock-and-artist's-smock-and-pleated quality, the visual register of English-shepherd's-smock-and-artist's-smock hand-shepherd's-smock-and-artist's-smock-and-pleated English-shepherd's-smock-and-artist's-smock-and-Sussex-Surrey-rural smock-and-shepherd's-smock surfaces under English-shepherd's-smock-and-artist's-smock-and-Sussex-Surrey-rural Sussex-Downs-and-Surrey-village shepherd-and-painter-light. Sits at the modifier-and-textile end of the grid, parallel to frock and tunic 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.

#03abb8
Original
#9ca3b9
Protanopia
#8794b8
Deuteranopia
#00b3af
Tritanopia
#888888
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
2.79:1
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
7.52:1

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
##03ABB8
Display P3
Display P3
color(display-p3 0.2996 0.6605 0.7125)
P3 has subtle headroomOKLCH chroma 0.115

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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