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Inky Tahoe

#17379b
Notes

Inky Tahoe (#17379B) is a true blue 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 (225°, 74%, 35%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. For a confident two-color system, pair it with its complementary amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#17379b
RGB
rgb(23, 55, 155)
HSL
hsl(225, 74%, 35%)
HWB
hwb(225 9% 39%)
OKLCH
oklch(38.6% 0.167 265.2)
P3
color(display-p3 0.1223 0.2128 0.5850)
HSV
hsv(225, 85%, 61%)
LAB
lab(27.52% 28.15 -57.41)
LCH
lch(27.52% 63.94 296.12)
CMYK
cmyk(85%, 65%, 0%, 39%)

Etymology

Inky
adjective

An adjectival form of ink, used as a color modifier since the eighteenth century to suggest the deep saturated black of fresh writing ink seen against white paper. Less about literal blackness than about the optical density of a fluid that absorbs light through its full thickness. Used at the dark end of any saturated hue: an inky blue is a deep saturated blue with the optical depth of pigment in solution.

Tahoe
noun

Lake Tahoe — the deep alpine lake on the California-Nevada border — known for its saturated deep-blue water and clarity (visibility to 21 meters). Tahoe refers to mid-depth Lake Tahoe water on a clear day: a saturated, slightly cool very deep blue with the optical clarity of cold-temperate alpine freshwater.

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.

#17379b
Original
#00479e
Protanopia
#003b99
Deuteranopia
#005163
Tritanopia
#373737
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).
AAAon White
10.21:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.06:1

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
##17379B
Display P3
Display P3
color(display-p3 0.1223 0.2128 0.5850)
P3 has subtle headroomOKLCH chroma 0.167

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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