Black Box
Also known as: Black Chasm , Sunken Ship , Crow Feather , Daintree
Black Box holds a deep position in the cyan range and reads as cool and clear. You'll see it used for modern branding and tech interfaces. For contrast, pair it with a brown from its complementary palette below. Accessibility-wise, it clears AA for text on white at 15.39:1.
Reference
Black Box color codes
- HEX
- #0F282F
- RGB
- rgb(15, 40, 47)
- RGBA
- rgba(15, 40, 47, 1)
- HSL
- hsl(193, 52%, 12%)
- HSV
- hsv(193, 68%, 18%)
- CMYK
- cmyk(68%, 15%, 0%, 82%)
- LAB
- lab(14.4 -8.1 -7.7)
- OKLCH
- oklch(26.0% 0.033 218.6)
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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neutral, leaning cool
subtle cyan undertone in this near-neutral
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: darkslategray #2F4F4F · ΔE 13.2
- RAL 9011: Graphite black #292C2F · ΔE 8.6 · 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 Black Box works
- Web & UI: Use it directly for text on light surfaces; it clears AA contrast without adjustment.
- Interiors: Use it where you want the eye to land: a front door, built-ins, or one bold wall.
- Fashion: One garment in this color carries an outfit; two starts to compete.
- Branding: The safest brand-primary family there is; differentiate with an unexpected accent.
- Web & UI: Use it decoratively for dividers, chart series, and illustration accents, and let neutrals carry the type.
- Branding: Best in a brand's supporting palette: packaging interiors, patterns, campaign accents.
Copy as: every ecosystem
Variations
Tints, shades, and tones of Black Box
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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 Black Box 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 15.39:1
AA pass AAA pass AA large pass
Aa on black
contrast 1.36:1
AA fail AAA fail AA large fail
Best text color on a Black Box background: #ffffff
Palettes
Palettes featuring Black Box
Black Box with its complement
Soft neighbors of Black Box
Black Box triad
Explore
Similar colors
- Elite Teal #133337 · ΔE 4.6
- Black Pearl #1E272C · ΔE 5.4
- Blue Whale #1E3442 · ΔE 6.1
- Cinder #242A2E · ΔE 6.9
- Aztec #293432 · ΔE 7.4
- Infinity #222831 · ΔE 8.2
Looking for maximum contrast instead? The complement of Black Box is closest to Wood Bark .
FAQ
Black Box FAQs
What color is Black Box?
Black Box is a dark cyan with the hex code #0F282F. In HSL terms it has a hue of 193°, 52% saturation, and 12% lightness.
What is the hex code for Black Box?
The hex code for Black Box is #0F282F. In RGB it's rgb(15, 40, 47), and in CMYK it's cmyk(68%, 15%, 0%, 82%).
What colors go well with Black Box?
Black Box pairs naturally with brown tones from its complementary harmony, and with red accents from its split-complementary palette. Its own tints and shades always work as a monochrome scheme.
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