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Imperial Cumin Sapphire

#255ecb
Notes

Imperial Cumin Sapphire (#255ECB) is a true azure with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (219°, 69%, 47%) places it in the balanced band at a mid lightness. It works across type, buttons, and borders, saturated enough to feel deliberate but balanced enough to not fight the rest of the palette. 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
#255ecb
RGB
rgb(37, 94, 203)
HSL
hsl(219, 69%, 47%)
HWB
hwb(219 15% 20%)
OKLCH
oklch(51.0% 0.180 261.7)
HSV
hsv(219, 82%, 80%)
LAB
lab(42.32% 22.03 -61.69)
LCH
lch(42.32% 65.50 289.65)
CMYK
cmyk(82%, 54%, 0%, 20%)

Etymology

Imperial
adjective

From the Latin imperialis, of the empire — applied to color since the medieval period for the hues reserved for sovereigns and empires: imperial purple of Tyrian dye, imperial yellow of Ming-dynasty porcelain. As a modifier, imperial implies saturation combined with the institutional weight of a color owned by a court. Sits in the bold-and-deep corner, alongside royal.

Cumin
modifier

Greek κύμινον, aromatic-Levantine-seed. As a color modifier, cumin implies a warm-Levantine-and-North-African-and-Mughal quality, the visual register of Levantine-and-North-African-and-Mughal-cumin hand-warm-Levantine-and-North-African-and-Mughal Levantine-and-North-African-and-Mughal-cumin-and-Aleppo-and-Marrakesh cumin-and-warm-Levantine surfaces under Levantine-and-North-African-and-Mughal-cumin-and-Aleppo-and-Marrakesh Aleppo-and-Marrakesh-and-Lahore Levantine-spice-light. Sits at the modifier-and-flavor end of the grid, parallel to caraway and pepper in usage.

Sapphire
noun

An iron-and-titanium-bearing corundum — the same mineral as ruby, hardness 9 on the Mohs scale, mined for two millennia from Sri Lanka, Burma, Madagascar, and the Cashmere mines of British India. The color refers to a fine Kashmir-cut sapphire: a saturated, slightly violet-shifted deep blue with the gem's signature internal velvet — a quality of light scattering in the stone that faceted glass cannot replicate. Cooler than cobalt, deeper than azure.

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.

#255ecb
Original
#006ccf
Protanopia
#005dc9
Deuteranopia
#00798b
Tritanopia
#5a5a5a
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).
AAon White
5.93:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AA Largeon Black
3.54:1

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