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Robust Hashita

#873da2
Notes

Robust Hashita (#873DA2) is a true violet with an earthy character. It leans grounded and natural, the kind of color that plays well with wood, clay, linen, and warm neutrals. Its HSL profile (284°, 45%, 44%) 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 green. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#873da2
RGB
rgb(135, 61, 162)
HSL
hsl(284, 45%, 44%)
HWB
hwb(284 24% 36%)
OKLCH
oklch(50.1% 0.167 315.9)
HSV
hsv(284, 62%, 64%)
LAB
lab(39.74% 47.81 -41.36)
LCH
lch(39.74% 63.22 319.14)
CMYK
cmyk(17%, 62%, 0%, 36%)

Etymology

Robust
adjective

From the Latin robustus, of oak — implying strength combined with substance. As a color modifier, robust describes saturation combined with body: a robust burgundy, a robust olive. Sits in the bold-and-warm corner alongside strong and solid, with the slightly textural implication of a color that has substance behind the pigment.

Hashita
noun

Japanese 半色, half-color — the technical Heian-court term for any kasane layer combination yielding a specific hue rather than a primary one. Hashita color refers to a Heian-period hashita-iro combination of a single-bath gromwell-and-indigo: a saturated, slightly cool deep violet with the silk luster of layered single-bath natural dye on hand-spun silk crepe.

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.

#873da2
Original
#1d59a5
Protanopia
#3d60a0
Deuteranopia
#854f6a
Tritanopia
#545454
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
6.52:1
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
3.22:1

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