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Towering Gin

#151f5d
Notes

Towering Gin (#151F5D) is a deep blue 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 (232°, 63%, 22%) 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 amber. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#151f5d
RGB
rgb(21, 31, 93)
HSL
hsl(232, 63%, 22%)
HWB
hwb(232 8% 64%)
OKLCH
oklch(27.6% 0.111 270.3)
P3
color(display-p3 0.0904 0.1205 0.3505)
HSV
hsv(232, 77%, 36%)
LAB
lab(15.11% 19.84 -38.31)
LCH
lch(15.11% 43.14 297.39)
CMYK
cmyk(77%, 67%, 0%, 64%)

Etymology

Towering
adjective

Old French tour, tower via Latin turris — present-participle of tower. As a color modifier, towering implies a deep-and-vertical-and-architectural quality, the dark cool-gray of Salisbury-Cathedral-and-Chartres-Cathedral spire-and-tower against the sky. Sits at the deep-and-architectural end of the grid, parallel to imposing and looming.

Gin
noun

The juniper-flavored distilled spirit — and the saturated deep blue of Bombay Sapphire-bottle glass and Hendrick's-style apothecary-style packaging. Gin color refers to a fresh-poured gin bottle in a bar light: a saturated, slightly cool deep blue with the high gloss of dyed glass.

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.

#151f5d
Original
#00295f
Protanopia
#00235c
Deuteranopia
#002f3a
Tritanopia
#212121
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
15.15:1
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
1.39:1

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
##151F5D
Display P3
Display P3
color(display-p3 0.0904 0.1205 0.3505)
P3 has subtle headroomOKLCH chroma 0.111

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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