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Poised Dumortierite

#4858c3
Notes

Poised Dumortierite (#4858C3) 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 (232°, 51%, 52%) 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
#4858c3
RGB
rgb(72, 88, 195)
HSL
hsl(232, 51%, 52%)
HWB
hwb(232 28% 24%)
OKLCH
oklch(50.8% 0.167 272.6)
HSV
hsv(232, 63%, 76%)
LAB
lab(41.68% 27.50 -58.02)
LCH
lch(41.68% 64.21 295.36)
CMYK
cmyk(63%, 55%, 0%, 24%)

Etymology

Poised
adjective

Old French peser, to weigh — past-participle of poise. As a color modifier, poised implies a saturated-and-balanced-and-confident quality where the hue holds its position with elegant equilibrium. Sits at the bold-and-confident end of the grid, parallel to centered and composed.

Dumortierite
noun

An aluminum-borate-silicate mineral — saturated deep blue, mined principally in Madagascar, Brazil, and Nevada. Used as ornamental stone and porcelain manufacturing additive. The color refers to a polished dumortierite cabochon: a saturated, slightly cool deep blue with the matte finish of opaque silicate mineral.

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.

#4858c3
Original
#0368c7
Protanopia
#005dc1
Deuteranopia
#007185
Tritanopia
#5c5c5c
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
6.07:1
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
3.46:1

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