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Sensibly Overcast

#1d082a
Notes

Sensibly Overcast (#1D082A) 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 (277°, 68%, 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
#1d082a
RGB
rgb(29, 8, 42)
HSL
hsl(277, 68%, 10%)
HWB
hwb(277 3% 84%)
OKLCH
oklch(19.0% 0.068 309.9)
P3
color(display-p3 0.1033 0.0356 0.1579)
HSV
hsv(277, 81%, 16%)
LAB
lab(5.44% 17.57 -17.94)
LCH
lch(5.44% 25.11 314.39)
CMYK
cmyk(31%, 81%, 0%, 84%)

Etymology

Sensibly
adjective

Latin sēnsibilis, perceivable / having-good-sense — adverbial-and-adjectival suffix -ly. As a color modifier, sensibly implies a neutral-and-practical-and-rational quality where the hue carries the visual register of practical-and-functional color-decision matched to its everyday-use context. Sits at the neutral-and-traditional end of the grid, parallel to reasonably and practical in usage.

Overcast
noun

Old English ofer-cæst, thrown-over — the deep-gray atmospheric condition when the sky is fully covered by stratiform cloud. Overcast color refers to a fully stratus-covered eastern coast of England in mid-November under low-pressure: a dark cool-gray with the optical complexity of stratus-and-stratocumulus cloud-covered sky-light filtered through North-Atlantic atmospheric humidity.

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.

#1d082a
Original
#00112b
Protanopia
#041229
Deuteranopia
#1b0f17
Tritanopia
#0f0f0f
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
18.74:1
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
##1D082A
Display P3
Display P3
color(display-p3 0.1033 0.0356 0.1579)
Inside sRGBOKLCH chroma 0.068

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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