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Brimming Shikon

#66429b
Notes

Brimming Shikon (#66429B) is a true indigo 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 (264°, 40%, 43%) 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
#66429b
RGB
rgb(102, 66, 155)
HSL
hsl(264, 40%, 43%)
HWB
hwb(264 26% 39%)
OKLCH
oklch(46.4% 0.140 299.6)
P3
color(display-p3 0.3795 0.2650 0.5879)
HSV
hsv(264, 57%, 61%)
LAB
lab(36.15% 35.06 -43.13)
LCH
lch(36.15% 55.58 309.11)
CMYK
cmyk(34%, 57%, 0%, 39%)

Etymology

Brimming
adjective

Old English brymme, brim / edge — present-participle of brim. As a color modifier, brimming implies a saturated-and-overflowing quality where the hue spills past the edge of its visual container with rich pigmentation. Sits at the bold-and-saturated end of the grid, parallel to replete and abundant.

Shikon
noun

Japanese 紫根, gromwell root (Lithospermum erythrorhizon) — the purple-root dye source for traditional Japanese murasaki and the medicinal-herb base for the eponymous shikon ointment used in burn treatment. Shikon color refers to a freshly harvested Lithospermum erythrorhizon root cross-section: a saturated, slightly cool deep violet with the matte finish of fresh root dye on hand-spun silk.

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

Click any swatch to explore

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.

#66429b
Original
#1a559e
Protanopia
#285499
Deuteranopia
#5b5468
Tritanopia
#505050
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).
AAAon White
7.45:1
The quick brown foxSample body text at normal size. The wcag minimum for body contrast is 4.5:1 (AA) or 7:1 (AAA).
Failon Black
2.82:1

Wide gamut

Display P3 representation

The CSS Color 4 wide-gamut form of this color. Both swatches render the same color on every display — the P3 form only diverges from sRGB when a designer pushes channels outside sRGB's reach.

sRGB hex
sRGB hex
##66429B
Display P3
Display P3
color(display-p3 0.3795 0.2650 0.5879)
P3 has subtle headroomOKLCH chroma 0.140

Moderately saturated colors gain a small bump in P3 — the difference is usually visible side-by-side on wide-gamut hardware but won't change the character of the color.

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