#666666
Stone
Stone is #666666 — a neutral used for type, borders, and surfaces. The values below are the same sRGB color in HEX, RGB, HSL, HSV, a simple CMYK conversion, and OKLCH. CMYK here is a channel formula for reference, not a press proof.
Conversions
- HEX
- #666666
- RGB
- rgb(102, 102, 102)
- HSL
- hsl(0,0%,40%)
- HSV
- hsv(0, 0%, 40%)
- CMYK
- cmyk(0,0,0,60)
- OKLCH
- oklch(51.0% 0.000 0.0)
Tints and shades
Tints mix this color toward white. Shades mix it toward black in sRGB. For a 50–950 ramp, open the tint and shade generator.
Tints
#858585
20% white
#A3A3A3
40% white
#C2C2C2
60% white
#E0E0E0
80% white
Shades
#525252
20% black
#3D3D3D
40% black
#292929
60% black
#141414
80% black
Harmony palettes
These schemes rotate hue from Stone. Read the relationships in color theory 101 or adjust them on the color wheel.
Complementary
Open in palette generatorAnalogous
Open in palette generatorTriadic
Open in palette generatorSplit Complementary
Open in palette generatorMonochromatic
Open in palette generatorTetradic
Open in palette generatorContrast against white and black
Ratios use the WCAG relative-luminance formula. AA normal text needs 4.5:1 and large text needs 3:1 under Success Criterion 1.4.3. AAA uses 7:1 and 4.5:1. A pass here is only this pair, not a full page audit. Check other pairings in the contrast checker.
Similar named colors
Nearest CSS named colors by RGB distance. Distance is not a perceptual match.
- Dim Gray#696969
- Gray#808080
- Slate Gray#708090
- Dark Olive Green#556B2F
- Dark Slate Blue#483D8B
- Light Slate Gray#778899