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Frank Caper Lazuli

#09a6a9
Notes

Frank Caper Lazuli (#09A6A9) 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 (181°, 90%, 35%) 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
#09a6a9
RGB
rgb(9, 166, 169)
HSL
hsl(181, 90%, 35%)
HWB
hwb(181 4% 34%)
OKLCH
oklch(65.8% 0.111 197.1)
P3
color(display-p3 0.2933 0.6412 0.6568)
HSV
hsv(181, 95%, 66%)
LAB
lab(61.82% -33.61 -11.71)
LCH
lch(61.82% 35.59 199.21)
CMYK
cmyk(95%, 2%, 0%, 34%)

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.

Caper
modifier

Greek κάππαρις, Mediterranean-pickled-bud. As a color modifier, caper implies a Mediterranean-pickled-bud-and-briny-tang quality, the visual register of Pantelleria-and-Sicilian-caper hand-Mediterranean-pickled-bud-and-briny-tang Pantelleria-and-Sicilian-caper-and-Aeolian-Islands caper-and-Mediterranean-pickled-bud surfaces under Pantelleria-and-Sicilian-caper-and-Aeolian-Islands Pantelleria-and-Aeolian-and-Sicilian Mediterranean-brine-light. Sits at the modifier-and-flavor end of the grid, parallel to anise and tang in usage.

Lazuli
noun

Passerina amoena, the lazuli bunting — a North American songbird whose males display saturated deep-blue plumage with white wing bars and chestnut breasts. Named for the gemstone (lapis lazuli) the bird's plumage resembles. The color refers to a male lazuli bunting in breeding plumage: a saturated, slightly cool deep blue.

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.

#09a6a9
Original
#999da9
Protanopia
#868faa
Deuteranopia
#00aca7
Tritanopia
#858585
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
2.98:1
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
7.04:1

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
##09A6A9
Display P3
Display P3
color(display-p3 0.2933 0.6412 0.6568)
P3 has subtle headroomOKLCH chroma 0.111

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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