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Highborn Pimento Sapphire

#2a51b1
Notes

Highborn Pimento Sapphire (#2A51B1) is a true azure 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 (223°, 62%, 43%) 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
#2a51b1
RGB
rgb(42, 81, 177)
HSL
hsl(223, 62%, 43%)
HWB
hwb(223 16% 31%)
OKLCH
oklch(46.5% 0.160 264.3)
HSV
hsv(223, 76%, 69%)
LAB
lab(37.02% 21.10 -55.10)
LCH
lch(37.02% 59.00 290.95)
CMYK
cmyk(76%, 54%, 0%, 31%)

Etymology

Highborn
adjective

Old English hēah-boren, high-born — past-participle of bear. As a color modifier, highborn implies a saturated-and-aristocratic-and-elite quality, the deep-rich color of pre-modern English high-born aristocratic-class livery-and-armorial bearings. Sits at the bold-and-aristocratic end of the grid, parallel to noble and aristocratic in usage.

Pimento
modifier

Spanish pimiento, sweet-red-Iberian-capsicum. As a color modifier, pimento implies a sweet-red-Iberian-capsicum-and-allspice-berry quality, the visual register of Spanish-and-Jamaican-pimento hand-sweet-red-Iberian-capsicum-and-allspice-berry Spanish-and-Jamaican-pimento-and-allspice-berry pimento-and-sweet-red-Iberian-capsicum surfaces under Spanish-and-Jamaican-pimento-and-allspice-berry Iberian-and-Jamaican-Blue-Mountain Iberian-and-Jamaican-spice-light. Sits at the modifier-and-flavor end of the grid, parallel to chili 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.

#2a51b1
Original
#005eb4
Protanopia
#0051af
Deuteranopia
#006879
Tritanopia
#505050
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
7.22:1
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
2.91:1

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