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Demurring Ebony

#646e5d
Notes

Demurring Ebony (#646E5D) is a true lime 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 (95°, 8%, 40%) 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 indigo. For something softer, pull in its analogous neighbors on either side of the wheel.

HEX
#646e5d
RGB
rgb(100, 110, 93)
HSL
hsl(95, 8%, 40%)
HWB
hwb(95 36% 57%)
OKLCH
oklch(52.5% 0.029 132.4)
P3
color(display-p3 0.3995 0.4301 0.3705)
HSV
hsv(95, 15%, 43%)
LAB
lab(45.15% -7.26 8.21)
LCH
lch(45.15% 10.96 131.46)
CMYK
cmyk(9%, 0%, 15%, 57%)

Etymology

Demurring
adjective

Latin dē-morārī, to delay — present-participle of demur. As a color modifier, demurring implies a hushed-and-pulled-back-and-modest quality where the hue carries the visual register of Edwardian-period modest-and-restrained-and-pulled-back-formal interior color-decision. Sits at the hushed-and-restrained end of the grid, parallel to demure and withholding in usage.

Ebony
noun

The genus Diospyros — particularly D. ebenum of Sri Lanka and D. crassiflora of West Africa — whose dense black heartwood has been carved for ornament since the Egyptian Old Kingdom. The color refers to polished African blackwood: a deep, slightly warm matte black with the satin finish of close-grained hardwood. Warmer than obsidian, drier than pitch, with the carving weight of a wood that sinks in water and sharpens its own tools.

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.

#646e5d
Original
#706b5c
Protanopia
#6e6b5e
Deuteranopia
#646c69
Tritanopia
#6b6b6b
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
5.34:1
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
3.93:1

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
##646E5D
Display P3
Display P3
color(display-p3 0.3995 0.4301 0.3705)
Inside sRGBOKLCH chroma 0.029

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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