Cyan 0
cyan-0 · #E3FAFC
HEX
#E3FAFC
RGB
rgb(227, 250, 252)
CMYK
cmyk(10%, 1%, 0%, 1%)
HSL
hsl(185, 81%, 94%)
LAB
lab(96.7, -7.1, -3.5)
What is Cyan 0?
Cyan 0 is the cyan-0 reference in the Open Color. Its sRGB value is #E3FAFC (rgb 227, 250, 252). 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 0 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Cyan 0
An 11-step tonal scale derived from Cyan 0 (#E3FAFC). 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
#FDFFFF
#FDFFFF
100
#FBFEFF
#FBFEFF
200
#F6FDFE
#F6FDFE
300
#F1FDFE
#F1FDFE
400
#EAFBFD
#EAFBFD
500
#E3FAFC
#E3FAFC
600
#C1D5D6
#C1D5D6
700
#94A3A4
#94A3A4
800
#667171
#667171
900
#393F3F
#393F3F
950
#1B1E1E
#1B1E1E
Lighter tints (mixed with white)
15%
#E7FBFC
30%
#ECFCFD
45%
#F0FCFD
60%
#F4FDFE
75%
#F8FEFE
Darker shades (mixed with black)
15%
#D3E9EB
30%
#C2D6D7
45%
#AEC0C1
60%
#97A6A8
75%
#798687
Color harmonies for Cyan 0
Classic color-theory harmonies derived from rotating the hue of Cyan 0. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#E3FAFC
#E3FAFC
#FCE5E3
#FCE5E3
Triadic
Three colors 120° apart
#E3FAFC
#E3FAFC
#FCE3FA
#FCE3FA
#FAFCE3
#FAFCE3
Analogous
Two neighbors ±30° on the wheel
#E3FCF2
#E3FCF2
#E3FAFC
#E3FAFC
#E3EEFC
#E3EEFC
Split-complementary
Base + two colors flanking its complement
#E3FAFC
#E3FAFC
#FCE3EE
#FCE3EE
#FCF2E3
#FCF2E3
Tetradic
Two complementary pairs
#E3FAFC
#E3FAFC
#E5E3FC
#E5E3FC
#FCE5E3
#FCE5E3
#FAFCE3
#FAFCE3
Square
Four colors evenly spaced 90° apart
#E3FAFC
#E3FAFC
#F2E3FC
#F2E3FC
#FCE5E3
#FCE5E3
#EEFCE3
#EEFCE3
Cyan 0 in every color space
Full conversion of Cyan 0 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
#E3FAFC
RGB
rgb(227, 250, 252)
CMYK
cmyk(10%, 1%, 0%, 1%)
HSL
hsl(185, 81%, 94%)
HSV
hsv(185, 10%, 99%)
HWB
hwb(185 89% 1%)
CIE Lab
lab(96.7 -7.1 -3.5)
OKLCH
oklch(96.9% 0.024 203.1)
XYZ (D65)
xyz(83.43, 91.73, 105.39)
Copy-ready code for Cyan 0
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: #E3FAFC;
background-color: #E3FAFC;CSS variable
:root {
--color-cyan-0: #E3FAFC;
}Tailwind config
// tailwind.config.js
colors: {
'cyan-0': '#E3FAFC',
}Sass
$color-cyan-0: #E3FAFC;Swift UIColor
UIColor(red: 0.890, green: 0.980, blue: 0.988, alpha: 1.0)Android XML
<color name="cyan-0">#E3FAFC</color>Closest match in every color system
The nearest Cyan 0 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 9016
#F6F6F6
Traffic white
RAL 9003
#F4F4F4
Signal white
RAL 9010
#FFFFFF
Pure white
RAL 9002
#E7EBDA
Grey white
RAL 7035
#D7D7D7
Light grey
RAL 9018
#D7D7D7
Papyrus white
FAQ about Cyan 0
What is the HEX code for Cyan 0?
Cyan 0 (cyan-0) has the HEX code #E3FAFC. In RGB it is rgb(227, 250, 252), and in CMYK it is cmyk(10%, 1%, 0%, 1%).
What is the OKLCH value of Cyan 0?
Cyan 0 converts to oklch(0.969 0.024 203.1). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Cyan 0 accessible for body text?
Used as a background, Cyan 0 has a contrast ratio of 19.35:1 with black text and 1.09:1 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 0?
The closest Pantone reference to Cyan 0 by ΔE2000 perceptual distance is Pantone 7457 C (#BBDDE6). 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 0?
The closest RAL Classic reference to Cyan 0 by ΔE2000 distance is RAL 9016 (Traffic white, #F6F6F6). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Cyan 0?
The complementary color (180° opposite on the HSL color wheel) of Cyan 0 is #FCE5E3. 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.