Cyan 8
cyan-8 · #0C8599
HEX
#0C8599
RGB
rgb(12, 133, 153)
CMYK
cmyk(92%, 13%, 0%, 40%)
HSL
hsl(189, 85%, 32%)
LAB
lab(50.9, -22.4, -19.2)
What is Cyan 8?
Cyan 8 is the cyan-8 reference in the Open Color. Its sRGB value is #0C8599 (rgb 12, 133, 153). It sits in the cyan family. Open Color, an open-source color palette by Heeyeun designed for UI work. 13 hues across 10 shades (0 to 9) tuned for screen legibility and accessibility. See disclaimer for accuracy and trademark notes.
Accessibility
WCAG 2.1 contrast checks for Cyan 8 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Cyan 8
An 11-step tonal scale derived from Cyan 8 (#0C8599). Click any swatch to copy its HEX. Use these as a starting point for design tokens, hover states, and disabled states in a design system.
50
#ECF5F7
#ECF5F7
100
#D8EBEF
#D8EBEF
200
#B1D8DE
#B1D8DE
300
#86C2CC
#86C2CC
400
#49A4B3
#49A4B3
500
#0C8599
#0C8599
600
#0A7182
#0A7182
700
#085663
#085663
800
#053C45
#053C45
900
#032126
#032126
950
#011012
#011012
Lighter tints (mixed with white)
15%
#6DA0AE
30%
#95B5BF
45%
#B3C8CF
60%
#CCD9DE
75%
#E1E8EB
Darker shades (mixed with black)
15%
#0A7B8E
30%
#087182
45%
#076574
60%
#055664
75%
#034450
Color harmonies for Cyan 8
Classic color-theory harmonies derived from rotating the hue of Cyan 8. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#0C8599
#0C8599
#97210C
#97210C
Triadic
Three colors 120° apart
#0C8599
#0C8599
#970C82
#970C82
#82970C
#82970C
Analogous
Two neighbors ±30° on the wheel
#0C9766
#0C9766
#0C8599
#0C8599
#0C3D97
#0C3D97
Split-complementary
Base + two colors flanking its complement
#0C8599
#0C8599
#970C3D
#970C3D
#97660C
#97660C
Tetradic
Two complementary pairs
#0C8599
#0C8599
#210C97
#210C97
#97210C
#97210C
#82970C
#82970C
Square
Four colors evenly spaced 90° apart
#0C8599
#0C8599
#660C97
#660C97
#97210C
#97210C
#3D970C
#3D970C
Cyan 8 in every color space
Full conversion of Cyan 8 across the color spaces designers and developers actually use — including OKLCH (the perceptually-uniform space that powers Tailwind v4 and CSS Color Module Level 4) and HWB.
HEX
#0C8599
RGB
rgb(12, 133, 153)
CMYK
cmyk(92%, 13%, 0%, 40%)
HSL
hsl(189, 85%, 32%)
HSV
hsv(189, 92%, 60%)
HWB
hwb(189 5% 40%)
CIE Lab
lab(50.9 -22.4 -19.2)
OKLCH
oklch(56.8% 0.097 213.4)
XYZ (D65)
xyz(14.29, 19.15, 33.07)
Copy-ready code for Cyan 8
Drop-in snippets for CSS, Tailwind, Sass, iOS Swift, and Android XML. Click the copy button on any snippet to put it on your clipboard.
CSS
color: #0C8599;
background-color: #0C8599;CSS variable
:root {
--color-cyan-8: #0C8599;
}Tailwind config
// tailwind.config.js
colors: {
'cyan-8': '#0C8599',
}Sass
$color-cyan-8: #0C8599;Swift UIColor
UIColor(red: 0.047, green: 0.522, blue: 0.600, alpha: 1.0)Android XML
<color name="cyan-8">#0C8599</color>Closest match in every color system
The nearest Cyan 8 equivalent in every other color system on this site, ranked by ΔE2000 perceptual distance. Useful when translating between design-system, web-standard, and industrial color references.
Closest in Open Color
Top 6 ΔE2000-closest entries within the same collection.
Closest Pantone matches
Top 6 ΔE2000-closest Pantone references. Cross-system matching is approximate — see disclaimer.
Closest RAL Classic matches
Top 6 ΔE2000-closest RAL Classic references for industrial coating cross-reference.
RAL 5018
#3F888F
Turquoise blue
RAL 5021
#256D7B
Water blue
RAL 5024
#5D9B9B
Pastel blue
RAL 5012
#3B83BD
Light blue
RAL 7000
#7E8B92
Squirrel grey
RAL 5009
#025669
Azure blue
FAQ about Cyan 8
What is the HEX code for Cyan 8?
Cyan 8 (cyan-8) has the HEX code #0C8599. In RGB it is rgb(12, 133, 153), and in CMYK it is cmyk(92%, 13%, 0%, 40%).
What is the OKLCH value of Cyan 8?
Cyan 8 converts to oklch(0.568 0.097 213.4). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Cyan 8 accessible for body text?
Used as a background, Cyan 8 has a contrast ratio of 4.83:1 with black text and 4.35:1 with white text. WCAG 2.1 AA requires 4.5:1 for normal text. The current recommendation is to use black text and verify in real UI context.
What is the closest Pantone to Cyan 8?
The closest Pantone reference to Cyan 8 by ΔE2000 perceptual distance is Pantone 3135 C (#008EAA). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Cyan 8?
The closest RAL Classic reference to Cyan 8 by ΔE2000 distance is RAL 5018 (Turquoise blue, #3F888F). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Cyan 8?
The complementary color (180° opposite on the HSL color wheel) of Cyan 8 is #97210C. Use it for high-contrast accents, error states, or call-to-action pairings.
Data provenance & source
Open Color (Yeun)
Open Color, an open-source color palette by Heeyeun designed for UI designers and developers. 13 hues across 10 shades. Use as a designer-friendly palette alternative to Tailwind. Values are intentionally chosen for UI legibility and accessibility.
- Source type
- derived
- Confidence
- high
- License
- MIT
- Last reviewed
- 2026-05-24
Workflow tags
Open Color values are tuned for digital UI. For print, treat as a starting point and proof against the substrate.