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Steadfast Hatoba

#a647b6
Notes

Steadfast Hatoba (#A647B6) 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 (291°, 44%, 50%) 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
#a647b6
RGB
rgb(166, 71, 182)
HSL
hsl(291, 44%, 50%)
HWB
hwb(291 28% 29%)
OKLCH
oklch(56.6% 0.186 321.7)
HSV
hsv(291, 61%, 71%)
LAB
lab(46.96% 54.92 -41.45)
LCH
lch(46.96% 68.81 322.96)
CMYK
cmyk(9%, 61%, 0%, 29%)

Etymology

Steadfast
adjective

Old English stede-fæst, fixed in place — sharing root with German stetig. As a color modifier, steadfast implies a saturated-and-unwavering quality where the hue maintains its visual character without modulation. Sits at the bold-and-firm end of the grid, parallel to unwavering and firm in usage.

Hatoba
noun

Japanese 鳩羽, pigeon-wing (鳩羽色, hatobane-iro) — the deep iridescent blue-violet of the Streptopelia orientalis (Eastern Turtle Dove) breast plumage, named in the Heian Engishiki (927 CE) as a courtly color. Hatoba color refers to a Streptopelia orientalis breast feather: a saturated, slightly cool deep violet with the iridescent satin finish of structurally colored feather barbs.

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.

#a647b6
Original
#2f68b9
Protanopia
#5473b3
Deuteranopia
#a85878
Tritanopia
#636363
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
5.00:1
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
4.20:1

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