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Lulled Toadflax

#636474
Notes

Lulled Toadflax (#636474) is a true blue 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 (236°, 8%, 42%) places it in the muted 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 yellow. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#636474
RGB
rgb(99, 100, 116)
HSL
hsl(236, 8%, 42%)
HWB
hwb(236 39% 55%)
OKLCH
oklch(50.8% 0.025 282.6)
P3
color(display-p3 0.3889 0.3920 0.4497)
HSV
hsv(236, 15%, 45%)
LAB
lab(42.81% 3.18 -9.10)
LCH
lch(42.81% 9.64 289.26)
CMYK
cmyk(15%, 14%, 0%, 55%)

Etymology

Lulled
adjective

Imitative-onomatopoeic origin — past-participle of lull, evoking the sound of a soft hush. As a color modifier, lulled implies a hushed-and-quieted-and-soothed quality where the hue carries the visual register of softly-muted-and-quieted ambient color. Sits at the hushed-and-soft end of the grid, parallel to muffled and softened in usage.

Toadflax
noun

Eurasian Linaria vulgaris and L. purpureasnapdragon cousins with hooded violet-and-yellow flowers naturalized across temperate roadsides and waste-ground. Toadflax color refers to a fully bloomed Linaria purpurea spike: a saturated, slightly cool deep blue-violet with the matte finish of dense small two-lipped snapdragon-form flowers. The Old English name refers to the linear flax-like foliage of the wild Linaria genus.

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.

#636474
Original
#606675
Protanopia
#5f6574
Deuteranopia
#5f6769
Tritanopia
#656565
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
5.82:1
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
3.61:1

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
##636474
Display P3
Display P3
color(display-p3 0.3889 0.3920 0.4497)
Inside sRGBOKLCH chroma 0.025

This color sits well within the sRGB cube. P3 and sRGB share the gray axis and most desaturated tones, so a P3 display renders this identically to an sRGB display.

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