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Settled Heather

#5b3380
Notes

Settled Heather (#5B3380) 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 (271°, 43%, 35%) 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
#5b3380
RGB
rgb(91, 51, 128)
HSL
hsl(271, 43%, 35%)
HWB
hwb(271 20% 50%)
OKLCH
oklch(40.9% 0.127 305.4)
P3
color(display-p3 0.3352 0.2075 0.4853)
HSV
hsv(271, 60%, 50%)
LAB
lab(29.79% 33.81 -36.81)
LCH
lch(29.79% 49.98 312.57)
CMYK
cmyk(29%, 60%, 0%, 50%)

Etymology

Settled
adjective

The past participle of settle, to come to rest — used as a color modifier since the seventeenth century for hues that read as stabilized after a process. Settled green, settled brown: moderate saturation combined with optical permanence. Sits at the crisp-bucket alongside steady and composed.

Heather
noun

Calluna vulgaris, the dominant ground cover of Scottish, Irish, and northern English moorland — the small woody shrub whose pink-purple flower spikes color hill country in late summer. The color refers to mature heather in August bloom: a soft, slightly muted pale purple-pink with the matte finish of small clustered flowers covering an entire moor at scale. Lighter than mauve, warmer than lavender, with the moorland weight of a plant whose name names a landscape.

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.

#5b3380
Original
#134582
Protanopia
#24467e
Deuteranopia
#554254
Tritanopia
#414141
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
9.42:1
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
2.23:1

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
##5B3380
Display P3
Display P3
color(display-p3 0.3352 0.2075 0.4853)
P3 has subtle headroomOKLCH chroma 0.127

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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