Rich Black
Also known as: Warm Black, Dark Side, Rapture, Cyprus
A vivid cyan with a clean and modern character, Rich Black works beautifully for modern branding and tech interfaces. Its complement lands in red territory, which makes for striking two-color pairings. On white it reads clearly at 11.62:1 contrast — safe for body text under WCAG AA.
Rich Black color codes
- HEX
- #004040
- RGB
- rgb(0, 64, 64)
- RGBA
- rgba(0, 64, 64, 1)
- HSL
- hsl(180, 100%, 13%)
- HSV
- hsv(180, 100%, 25%)
- CMYK
- cmyk(100%, 0%, 0%, 75%)
- LAB
- lab(23.6 -18.8 -5.6)
- OKLCH
- oklch(33.6% 0.057 194.8)
Color intelligence
Displays accurately on every screen and translates well to print.
Temperature
cool
Nearest standard colors
- CSS: darkslategray#2F4F4F · ΔE 7.2
- RAL 6004 — Blue green#0E4243 · ΔE 1.6 · 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 Rich Black 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, empty-state illustrations — not text.
- Branding: A secondary brand color by nature: it supports a stronger primary and shines in illustration.
Copy as — every ecosystem
Tints, shades, and tones of Rich Black
Tints (lighter)
Shades (darker)
Color harmonies
Palettes built from Rich Black 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 11.62:1
AA passAAA passAA large pass
Aa — on black
contrast 1.81:1
AA failAAA failAA large fail
Best text color on a Rich Black background: #ffffff
Palettes featuring Rich Black
Rich Black with its complement
Soft neighbors of Rich Black
Rich Black triad
Similar colors
- Elite Teal#133337 · ΔE 6.8
- Cape Verde#01554F · ΔE 7.3
- Everglade#264334 · ΔE 8.5
- Hunter#33534B · ΔE 8.6
- Lacrosse#2E5C58 · ΔE 9.5
- Mosque#005F5B · ΔE 10.2
Looking for maximum contrast instead? The complement of Rich Black is closest to Lonestar.
Rich Black FAQs
What color is Rich Black?
Rich Black is a dark cyan with the hex code #004040. In HSL terms it has a hue of 180°, 100% saturation, and 13% lightness.
What is the hex code for Rich Black?
The hex code for Rich Black is #004040. In RGB it's rgb(0, 64, 64), and in CMYK it's cmyk(100%, 0%, 0%, 75%).
What colors go well with Rich Black?
Rich Black pairs naturally with red tones from its complementary harmony, and with pink accents from its split-complementary palette. Its own tints and shades always work as a monochrome scheme.
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