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Plunged Crimea

#17338b
Notes

Plunged Crimea (#17338B) 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 (226°, 72%, 32%) 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
#17338b
RGB
rgb(23, 51, 139)
HSL
hsl(226, 72%, 32%)
HWB
hwb(226 9% 45%)
OKLCH
oklch(36.3% 0.150 265.6)
HSV
hsv(226, 83%, 55%)
LAB
lab(24.99% 24.53 -51.70)
LCH
lch(24.99% 57.23 295.39)
CMYK
cmyk(83%, 63%, 0%, 45%)

Etymology

Plunged
adjective

Old French plonger, to plunge via Latin plumbicāre (to weight with lead) — past-participle of plunge. As a color modifier, plunged implies the deep-and-suddenly-deepened quality of a hue forced into darkness. Sits at the deep-and-rapid-shift end of the grid, parallel to submerged with kinetic register.

Crimea
noun

The Black Sea peninsula — and the saturated deep blue of the Black Sea coast at Yalta and Sevastopol. Crimea refers to the Black Sea off the Yalta coastline at midday: a saturated, slightly cool deep blue with the optical depth of brackish enclosed-sea water.

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

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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.

#17338b
Original
#00418e
Protanopia
#003689
Deuteranopia
#004a5a
Tritanopia
#333333
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
11.15:1
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
1.88:1

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