Black Box
Also known as: Black Chasm, Sunken Ship, Crow Feather, Daintree
Quietly cool and clear, Black Box is a cool-toned cyan that earns its keep in 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.
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)
Color intelligence
Displays accurately on every screen and translates well to print.
Temperature
neutral, leaning cool
subtle cyan undertone in this near-neutral
Nearest standard colors
- 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 — 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 — dividers, chart series, 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
Tints, shades, and tones of Black Box
Tints (lighter)
Shades (darker)
Color harmonies
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
Contrast & accessibility
Aa — on white
contrast 15.39:1
AA passAAA passAA large pass
Aa — on black
contrast 1.36:1
AA failAAA failAA large fail
Best text color on a Black Box background: #ffffff
Palettes featuring Black Box
Black Box with its complement
Soft neighbors of Black Box
Black Box triad
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.
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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