Open Seas
Also known as: Sebastian Inlet, Thistleblossom Soft Blue, Crystal Lake, Summerhouse Blue
A gentle cyan with a crisp and refreshing character, Open Seas works beautifully for healthcare apps and modern branding. Its complement lands in red territory, which makes for striking two-color pairings. Accessibility-wise, it needs a dark backdrop — 8.82:1 on black clears AA.
Open Seas color codes
- HEX
- #83AFBC
- RGB
- rgb(131, 175, 188)
- RGBA
- rgba(131, 175, 188, 1)
- HSL
- hsl(194, 30%, 63%)
- HSV
- hsv(194, 30%, 74%)
- CMYK
- cmyk(30%, 7%, 0%, 26%)
- LAB
- lab(68.6 -12.9 -11.7)
- OKLCH
- oklch(72.7% 0.051 217.9)
Color intelligence
Displays accurately on every screen and translates well to print.
Temperature
cool
Nearest standard colors
- CSS: skyblue#87CEEB · ΔE 9.4
- RAL 6034 — Pastel turquoise#7FB0B2 · ΔE 5.4 · 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 Open Seas works
- Web & UI: A supporting-cast color for UI: chart fills, tags, empty-state illustrations — not text.
- Interiors: Soft and low-saturation — a candidate for full walls, where vivid colors overwhelm.
- 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.
- Interiors: Strong for a whole room, excellent in doses: an accent wall, cabinetry, or a statement chair.
- 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 Open Seas
Tints (lighter)
Shades (darker)
Color harmonies
Palettes built from Open Seas 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 2.38:1
AA failAAA failAA large fail
Aa — on black
contrast 8.82:1
AA passAAA passAA large pass
Best text color on a Open Seas background: #000000
Palettes featuring Open Seas
Open Seas with its complement
Soft neighbors of Open Seas
Open Seas triad
Similar colors
- Equanimity#83A9B3 · ΔE 2.1
- Glacier#78B1BF · ΔE 2.6
- Juvie#8ABBD0 · ΔE 4.4
- Grauzone#85A3B2 · ΔE 5.1
- Summit#8BB6B8 · ΔE 5.2
- Aquatic#99C1CC · ΔE 5.2
Looking for maximum contrast instead? The complement of Open Seas is closest to Muddy Mire.
Open Seas FAQs
What color is Open Seas?
Open Seas is a medium cyan with the hex code #83AFBC. In HSL terms it has a hue of 194°, 30% saturation, and 63% lightness.
What is the hex code for Open Seas?
The hex code for Open Seas is #83AFBC. In RGB it's rgb(131, 175, 188), and in CMYK it's cmyk(30%, 7%, 0%, 26%).
What colors go well with Open Seas?
Open Seas pairs naturally with red tones from its complementary harmony. Its own tints and shades always work as a monochrome scheme.
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