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Foundational Galaxy

#1f042e
Notes

Foundational Galaxy (#1F042E) is a deep indigo 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 (279°, 84%, 10%) places it in the highly saturated band at a dark 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#1f042e
RGB
rgb(31, 4, 46)
HSL
hsl(279, 84%, 10%)
HWB
hwb(279 2% 82%)
OKLCH
oklch(19.0% 0.082 310.5)
P3
color(display-p3 0.1090 0.0210 0.1726)
HSV
hsv(279, 91%, 18%)
LAB
lab(5.20% 21.78 -21.32)
LCH
lch(5.20% 30.48 315.61)
CMYK
cmyk(33%, 91%, 0%, 82%)

Etymology

Foundational
adjective

Latin fundātiō, foundation — adjectival suffix -al. As a color modifier, foundational implies a neutral-and-base-and-supporting quality where the hue carries the visual register of Bauhaus-and-Mondrian-De-Stijl foundational-and-base-supporting-color theoretical-color-system. Sits at the neutral-and-foundational end of the grid, parallel to primary and essential in usage.

Galaxy
noun

A gravitationally bound system of stars, gas, dust, and dark matter — the Milky Way, Andromeda, and the hundred billion others observed within fourteen-billion-light-year horizon. The color galaxy refers to the average reflectance of a long-exposure spiral galaxy image: a deep, slightly violet-shifted near-black with scattered points of stellar light. Cooler than ink, warmer than vantablack.

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.

#1f042e
Original
#00102f
Protanopia
#00122d
Deuteranopia
#1d0d18
Tritanopia
#0d0d0d
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
18.83:1
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
##1F042E
Display P3
Display P3
color(display-p3 0.1090 0.0210 0.1726)
P3 has subtle headroomOKLCH chroma 0.082

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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