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Stripped Firmament

#0f5c65
Notes

Stripped Firmament (#0F5C65) is a deep 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 (186°, 74%, 23%) 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 red. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#0f5c65
RGB
rgb(15, 92, 101)
HSL
hsl(186, 74%, 23%)
HWB
hwb(186 6% 60%)
OKLCH
oklch(43.6% 0.070 207.2)
P3
color(display-p3 0.1638 0.3552 0.3905)
HSV
hsv(186, 85%, 40%)
LAB
lab(35.39% -18.39 -11.50)
LCH
lch(35.39% 21.69 212.02)
CMYK
cmyk(85%, 9%, 0%, 60%)

Etymology

Stripped
adjective

Old English stripian, to strip — past-participle of strip. As a color modifier, stripped implies a clear-and-bared-and-unornamented quality, the crisp color of Cistercian-and-Bauhaus anti-ornamental stripped-down architectural interior. Sits at the crisp-and-stripped end of the grid, parallel to spare and bare in usage.

Firmament
noun

The biblical sky-vault — and God called the firmament Heaven (Genesis). Firmament in literary and religious color vocabulary refers to the saturated deep blue of the cloudless midday sky as seen from a desert or mountain: a saturated, slightly cool deep blue with the optical brightness of a clear high-altitude atmosphere.

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.

#0f5c65
Original
#535866
Protanopia
#485065
Deuteranopia
#00615f
Tritanopia
#4c4c4c
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
7.67:1
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
2.74:1

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
##0F5C65
Display P3
Display P3
color(display-p3 0.1638 0.3552 0.3905)
Inside sRGBOKLCH chroma 0.070

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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