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Magisterial Phacelia

#308ce0
Notes

Magisterial Phacelia (#308CE0) 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 (209°, 74%, 53%) 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 orange. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#308ce0
RGB
rgb(48, 140, 224)
HSL
hsl(209, 74%, 53%)
HWB
hwb(209 19% 12%)
OKLCH
oklch(62.8% 0.152 250.1)
HSV
hsv(209, 79%, 88%)
LAB
lab(56.84% 2.25 -50.26)
LCH
lch(56.84% 50.31 272.56)
CMYK
cmyk(79%, 37%, 0%, 12%)

Etymology

Magisterial
adjective

Latin magisterium, teacher's office — adjectival suffix -al. As a color modifier, magisterial implies a saturated-and-authoritative-and-formal quality, the deep-rich color of Qing-dynasty civil-magistrate court-and-ritual textiles and Imperial-Examination scholar-class livery. Sits at the bold-and-authoritative end of the grid, parallel to authoritative and commanding.

Phacelia
noun

The genus Phacelialacy phacelia or blue tansy — a North American native and naturalized European cover crop with deep-blue cymose inflorescences attractive to bees. The color refers to a fresh P. tanacetifolia field at peak bloom: a saturated, slightly cool deep blue with the matte finish of small clustered florets covering the entire field.

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.

#308ce0
Original
#6491e3
Protanopia
#4981de
Deuteranopia
#00a0ab
Tritanopia
#7f7f7f
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).
AA Largeon White
3.53:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
AAon Black
5.95:1

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