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Homemade Cloister

#170b29
Notes

Homemade Cloister (#170B29) is a deep indigo 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 (264°, 58%, 10%) places it in the balanced band at a dark lightness. It works well as a headline, icon, or deep background in an otherwise light layout, pairing cleanly with cream, bone, and warm neutrals. For a confident two-color system, pair it with its complementary lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#170b29
RGB
rgb(23, 11, 41)
HSL
hsl(264, 58%, 10%)
HWB
hwb(264 4% 84%)
OKLCH
oklch(18.6% 0.059 299.0)
P3
color(display-p3 0.0834 0.0452 0.1542)
HSV
hsv(264, 73%, 16%)
LAB
lab(5.25% 13.11 -17.53)
LCH
lch(5.25% 21.89 306.79)
CMYK
cmyk(44%, 73%, 0%, 84%)

Etymology

Homemade
adjective

English compound home + past-participle made — sharing root with make. As a color modifier, homemade implies a neutral-and-handcrafted-and-domestic quality, the neutral color of American-and-English-cottage hand-made-and-home-craft household-textile-and-pottery surface-finish. Sits at the neutral-and-traditional end of the grid, parallel to handmade and handcrafted in usage.

Cloister
noun

Latin claustrum, enclosed-space — the deep-cool-gray monastic-courtyard arcade of medieval European Cistercian and Benedictine monastic architecture, where the brothers-and-sisters processed in silent prayer between the opus Dei (work of God) hours. Cloister color refers to a Le-Thoronet-Abbey 12th-century cloister-arcade face in November-overcast light: a dark cool-gray with the matte finish of Provençal-Triassic-limestone hand-quarried-and-hand-cut Cistercian-monastic-architecture.

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.

#170b29
Original
#01112a
Protanopia
#031128
Deuteranopia
#131118
Tritanopia
#101010
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
18.81:1
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
1.12:1

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
##170B29
Display P3
Display P3
color(display-p3 0.0834 0.0452 0.1542)
Inside sRGBOKLCH chroma 0.059

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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