Clean Slate
Also known as: Yawl , Blue Jacket , French Diamond , Boathouse
Clean Slate brings a calm and trustworthy feel to a palette. This medium blue suits trust-driven interfaces and corporate branding. For contrast, pair it with a brown from its complementary palette below. On white it reads clearly at 4.89:1 contrast, safe for body text under WCAG AA.
Reference
Clean Slate color codes
- HEX
- #577396
- RGB
- rgb(87, 115, 150)
- RGBA
- rgba(87, 115, 150, 1)
- HSL
- hsl(213, 27%, 46%)
- HSV
- hsv(213, 42%, 59%)
- CMYK
- cmyk(42%, 23%, 0%, 41%)
- LAB
- lab(47.3 -3.3 -22.6)
- OKLCH
- oklch(54.8% 0.064 254.4)
Analysis
Color intelligence
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Gamut
The full range of colors a device or space can show. sRGB is the common screen gamut; Display P3 is wider. A color outside a gamut cannot be shown accurately there and must be mapped inward.Full glossary entry →Displays accurately on every screen and translates well to print.
Temperature
Undertone
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cool
Nearest standard colors
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →
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Delta E (ΔE)
A measure of how different two colors look. Below 1 the difference is invisible to almost everyone; below 2.3 most people can't tell them apart; above 10 they are clearly different colors. We use CIEDE2000, the modern standard.Full glossary entry →- CSS: steelblue #4682B4 · ΔE 7.8
- RAL 5023: Distant blue #4D668E · ΔE 5.0 · approximate
RAL values are widely published approximations of the physical standard. For Pantone-adjacent workflows, match by eye against a physical fan deck. Pantone's values are proprietary and device-dependent, so we don't print lookups.
Where Clean Slate works
- Web & UI: Dark enough for body text and icons on white backgrounds. It passes WCAG AA as-is.
- Interiors: Strong for a whole room, excellent in doses: an accent wall, cabinetry, or a statement chair.
- Fashion: Wears best as the statement piece, a top, scarf, or shoes, against neutral basics.
- Branding: Sits in the trust register: a natural primary for finance, health, and B2B brands.
- Web & UI: A supporting-cast color for UI: chart fills, tags, and empty-state illustrations, but not text.
- Branding: A secondary brand color by nature: it supports a stronger primary and shines in illustration.
Copy as: every ecosystem
Variations
Tints, shades, and tones of Clean Slate
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →
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Tint
A color mixed with white, which raises its lightness. Pink is a tint of red. Tints feel softer and more open than the base color.Full glossary entry →Tints (lighter)
Shades (darker)
Harmonies
Color harmonies
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →
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Complementary colors
Two colors opposite each other on the wheel. They create the strongest contrast and make each other look more intense, so they work best used unevenly.Full glossary entry →Palettes built from Clean Slate by rotating its hue in OKLCH space. Click any swatch to copy its hex code.
Complementary
Analogous
Triadic
Split-complementary
Tetradic
Monochromatic
Accessibility
Contrast & accessibility
Aa on white
contrast 4.89:1
AA pass AAA fail AA large pass
Aa on black
contrast 4.30:1
AA fail AAA fail AA large pass
Best text color on a Clean Slate background: #ffffff
Palettes
Palettes featuring Clean Slate
Clean Slate with its complement
Soft neighbors of Clean Slate
Clean Slate triad
Explore
Similar colors
- Beach View #4F7694 · ΔE 4.2
- Queen Blue #436B95 · ΔE 4.3
- Naval #41729F · ΔE 4.4
- Plumbeous #5C7287 · ΔE 4.6
- Sail On #4575AD · ΔE 4.7
- Muted Blue #3B719F · ΔE 5.2
Looking for maximum contrast instead? The complement of Clean Slate is closest to Barrel Aged .
FAQ
Clean Slate FAQs
What color is Clean Slate?
Clean Slate is a medium blue with the hex code #577396. In HSL terms it has a hue of 213°, 27% saturation, and 46% lightness.
What is the hex code for Clean Slate?
The hex code for Clean Slate is #577396. In RGB it's rgb(87, 115, 150), and in CMYK it's cmyk(42%, 23%, 0%, 41%).
What colors go well with Clean Slate?
Clean Slate pairs naturally with brown tones from its complementary harmony. Its own tints and shades always work as a monochrome scheme.
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