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Strong Shawl Sapphire

#2f53bd
Notes

Strong Shawl Sapphire (#2F53BD) is a true blue with a cool character. It leans cool, sitting on the blue, green, and violet side of the wheel. Quiet and dependable, a fit for product UI and data visualization. Its HSL profile (225°, 60%, 46%) 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
#2f53bd
RGB
rgb(47, 83, 189)
HSL
hsl(225, 60%, 46%)
HWB
hwb(225 18% 26%)
OKLCH
oklch(48.0% 0.172 265.9)
HSV
hsv(225, 75%, 74%)
LAB
lab(38.66% 24.93 -59.48)
LCH
lch(38.66% 64.50 292.74)
CMYK
cmyk(75%, 56%, 0%, 26%)

Etymology

Strong
adjective

Old English strang, firm, vigorous — applied to color since the sixteenth century. Strong red, strong tea: a color at full strength is the maximum saturation the medium can produce. Sits at the saturated mid corner of the grid, parallel to bold in usage but slightly more focused on pigment density than on assertion.

Shawl
modifier

Persian shāl, long-folded-wrap. As a color modifier, shawl implies a Persian-Kashmiri-and-paisley-folded-wrap quality, the visual register of Persian-Kashmiri-and-paisley-shawl hand-Persian-Kashmiri-and-paisley-folded-wrap Persian-Kashmiri-and-paisley-shawl-and-Norwich-and-Paisley-loom shawl-and-Persian-Kashmiri-and-paisley-folded-wrap surfaces under Persian-Kashmiri-and-paisley-shawl-and-Norwich-and-Paisley-loom Mughal-Kashmir-and-Norwich-and-Paisley-loom paisley-shawl-light. Sits at the modifier-and-textile end of the grid, parallel to stole and sash 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.

#2f53bd
Original
#0062c1
Protanopia
#0055bb
Deuteranopia
#006d80
Tritanopia
#535353
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
6.79:1
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
3.09:1

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