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Valiant Nightfall

#8a66e4
Notes

Valiant Nightfall (#8A66E4) is a true indigo with a vibrant character. It holds its own as a focal accent, carrying visual weight without tipping into neon territory. Its HSL profile (257°, 70%, 65%) 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 lime. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#8a66e4
RGB
rgb(138, 102, 228)
HSL
hsl(257, 70%, 65%)
HWB
hwb(257 40% 11%)
OKLCH
oklch(60.7% 0.184 293.3)
HSV
hsv(257, 55%, 89%)
LAB
lab(52.41% 42.65 -59.32)
LCH
lch(52.41% 73.06 305.72)
CMYK
cmyk(39%, 55%, 0%, 11%)

Etymology

Valiant
adjective

Latin valēns, strong — present-participle of valēre, sharing root with English value and valor. As a color modifier, valiant implies a saturated-and-courageous-and-firm quality, the deep-rich color of Crusader-and-Knight-Templar military-religious-order vestment. Sits at the bold-and-chivalrous end of the grid, parallel to gallant and heroic in usage.

Nightfall
noun

English compound from Old English niht-feall, fall of night — the brief window between crepuscule (dusk) and full night when the western sky retains a deep blue-violet Belt of Venus glow above the horizon shadow. Nightfall color refers to a clear-sky western horizon at nightfall: a saturated, slightly cool deep blue-violet with the optical complexity of Rayleigh-scattered atmospheric Belt of Venus light.

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.

#8a66e4
Original
#267fe8
Protanopia
#317be1
Deuteranopia
#73819b
Tritanopia
#777777
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
4.12:1
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
5.10:1

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