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Practical Tart Lazuli

#29609a
Notes

Practical Tart Lazuli (#29609A) is a true azure with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (211°, 58%, 38%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#29609a
RGB
rgb(41, 96, 154)
HSL
hsl(211, 58%, 38%)
HWB
hwb(211 16% 40%)
OKLCH
oklch(48.2% 0.110 252.2)
P3
color(display-p3 0.2180 0.3716 0.5866)
HSV
hsv(211, 73%, 60%)
LAB
lab(39.86% 2.34 -36.86)
LCH
lch(39.86% 36.93 273.63)
CMYK
cmyk(73%, 38%, 0%, 40%)

Etymology

Practical
adjective

Greek praktikós, practical — adjectival suffix -al. As a color modifier, practical implies a clear-and-purpose-fit-and-everyday quality where the hue carries the visual register of Shaker-and-Quaker utilitarian-and-functional everyday-life craft. Sits at the crisp-and-functional end of the grid, parallel to functional and workmanlike in usage.

Tart
modifier

Old English teart, sharp-or-acid-tasting. As a color modifier, tart implies a sharp-acid-and-fruit-puckered quality, the visual register of Bramley-apple-and-rhubarb-tart hand-sharp-acid-and-fruit-puckered Bramley-apple-and-rhubarb-tart-and-Yorkshire-orchard tart-and-sharp-acid-and-fruit-puckered surfaces under Bramley-apple-and-rhubarb-tart-and-Yorkshire-orchard Yorkshire-orchard-and-Kentish-Garden-of-England puckered-orchard-light. Sits at the modifier-and-flavor end of the grid, parallel to sour 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.

#29609a
Original
#45649c
Protanopia
#355999
Deuteranopia
#006e75
Tritanopia
#585858
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).
AAon White
6.49:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.23:1

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
##29609A
Display P3
Display P3
color(display-p3 0.2180 0.3716 0.5866)
P3 has subtle headroomOKLCH chroma 0.110

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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