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Suited Ebony

#636f63
Notes

Suited Ebony (#636F63) is a balanced neutral with a mono character. It's a grayscale value, at home in typography, dividers, and the structural layer beneath stronger colors. Its HSL profile (120°, 6%, 41%) places it in the muted band at a mid lightness. It works well as secondary text, borders, and placeholder states. A reliable middle gray that reads cleanly in either light or dark contexts. Pair it with almost any saturated accent. It's built to sit underneath or behind stronger colors without fighting them.

HEX
#636f63
RGB
rgb(99, 111, 99)
HSL
hsl(120, 6%, 41%)
HWB
hwb(120 39% 56%)
OKLCH
oklch(52.8% 0.024 145.2)
P3
color(display-p3 0.3971 0.4338 0.3919)
HSV
hsv(120, 11%, 44%)
LAB
lab(45.53% -7.05 5.15)
LCH
lch(45.53% 8.73 143.84)
CMYK
cmyk(11%, 0%, 11%, 56%)

Etymology

Suited
adjective

Old French suite, following — past-participle of suit. As a color modifier, suited implies a neutral-and-coordinated-and-formal quality, the neutral color of Edwardian-period full-suit-and-formal-attire coordinated-and-formal-tailored gentleman's-three-piece dress-attire finish. Sits at the neutral-and-traditional end of the grid, parallel to tailored and fitted 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.

#636f63
Original
#706d62
Protanopia
#6d6b64
Deuteranopia
#626e6b
Tritanopia
#6c6c6c
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
5.27:1
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
3.98:1

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
##636F63
Display P3
Display P3
color(display-p3 0.3971 0.4338 0.3919)
Inside sRGBOKLCH chroma 0.024

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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