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Inky Karakoram

#101554
Notes

Inky Karakoram (#101554) 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 (236°, 68%, 20%) 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#101554
RGB
rgb(16, 21, 84)
HSL
hsl(236, 68%, 20%)
HWB
hwb(236 6% 67%)
OKLCH
oklch(24.4% 0.112 271.3)
P3
color(display-p3 0.0666 0.0818 0.3159)
HSV
hsv(236, 81%, 33%)
LAB
lab(11.18% 22.74 -38.70)
LCH
lch(11.18% 44.88 300.44)
CMYK
cmyk(81%, 75%, 0%, 67%)

Etymology

Inky
adjective

An adjectival form of ink, used as a color modifier since the eighteenth century to suggest the deep saturated black of fresh writing ink seen against white paper. Less about literal blackness than about the optical density of a fluid that absorbs light through its full thickness. Used at the dark end of any saturated hue: an inky blue is a deep saturated blue with the optical depth of pigment in solution.

Karakoram
noun

Central Asian mountain range straddling Pakistan, China, and India — home of K2 and the Hunza Valley's lapis-lazuli mines that supplied the Renaissance with ultramarine pigment. Karakoram color refers to an unworked Sar-e-Sang lapis-lazuli boulder freshly extracted from the Karakoram foothills: a saturated, slightly cool deep blue-violet with the matte finish of pyrite-flecked lazurite ore on rough fracture surface.

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.

#101554
Original
#002156
Protanopia
#001b53
Deuteranopia
#002632
Tritanopia
#181818
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
16.70:1
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
1.26:1

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
##101554
Display P3
Display P3
color(display-p3 0.0666 0.0818 0.3159)
P3 has subtle headroomOKLCH chroma 0.112

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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