Cyan 1
cyan-1 · #C5F6FA
HEX
#C5F6FA
RGB
rgb(197, 246, 250)
CMYK
cmyk(21%, 2%, 0%, 2%)
HSL
hsl(185, 84%, 88%)
LAB
lab(93.8, -14.7, -7.1)
What is Cyan 1?
Cyan 1 is the cyan-1 reference in the Open Color. Its sRGB value is #C5F6FA (rgb 197, 246, 250). 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 1 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Cyan 1
An 11-step tonal scale derived from Cyan 1 (#C5F6FA). 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
#FAFEFF
#FAFEFF
100
#F6FEFE
#F6FEFE
200
#ECFCFD
#ECFCFD
300
#E2FBFD
#E2FBFD
400
#D4F8FB
#D4F8FB
500
#C5F6FA
#C5F6FA
600
#A7D1D5
#A7D1D5
700
#80A0A3
#80A0A3
800
#596F71
#596F71
900
#313E3F
#313E3F
950
#181E1E
#181E1E
Lighter tints (mixed with white)
15%
#CFF7FB
30%
#D9F9FC
45%
#E2FAFC
60%
#EAFBFD
75%
#F2FDFE
Darker shades (mixed with black)
15%
#B7E5E9
30%
#A8D2D6
45%
#96BDC0
60%
#82A3A6
75%
#688486
Color harmonies for Cyan 1
Classic color-theory harmonies derived from rotating the hue of Cyan 1. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#C5F6FA
#C5F6FA
#FACBC7
#FACBC7
Triadic
Three colors 120° apart
#C5F6FA
#C5F6FA
#FAC7F6
#FAC7F6
#F6FAC7
#F6FAC7
Analogous
Two neighbors ±30° on the wheel
#C7FAE5
#C7FAE5
#C5F6FA
#C5F6FA
#C7DCFA
#C7DCFA
Split-complementary
Base + two colors flanking its complement
#C5F6FA
#C5F6FA
#FAC7DC
#FAC7DC
#FAE5C7
#FAE5C7
Tetradic
Two complementary pairs
#C5F6FA
#C5F6FA
#CBC7FA
#CBC7FA
#FACBC7
#FACBC7
#F6FAC7
#F6FAC7
Square
Four colors evenly spaced 90° apart
#C5F6FA
#C5F6FA
#E5C7FA
#E5C7FA
#FACBC7
#FACBC7
#DCFAC7
#DCFAC7
Cyan 1 in every color space
Full conversion of Cyan 1 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
#C5F6FA
RGB
rgb(197, 246, 250)
CMYK
cmyk(21%, 2%, 0%, 2%)
HSL
hsl(185, 84%, 88%)
HSV
hsv(185, 21%, 98%)
HWB
hwb(185 77% 2%)
CIE Lab
lab(93.8 -14.7 -7.1)
OKLCH
oklch(94.1% 0.050 202.5)
XYZ (D65)
xyz(73.23, 84.68, 102.91)
Copy-ready code for Cyan 1
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: #C5F6FA;
background-color: #C5F6FA;CSS variable
:root {
--color-cyan-1: #C5F6FA;
}Tailwind config
// tailwind.config.js
colors: {
'cyan-1': '#C5F6FA',
}Sass
$color-cyan-1: #C5F6FA;Swift UIColor
UIColor(red: 0.773, green: 0.965, blue: 0.980, alpha: 1.0)Android XML
<color name="cyan-1">#C5F6FA</color>Closest match in every color system
The nearest Cyan 1 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 6027
#84C3BE
Light green
RAL 9002
#E7EBDA
Grey white
RAL 9003
#F4F4F4
Signal white
RAL 9016
#F6F6F6
Traffic white
RAL 9010
#FFFFFF
Pure white
RAL 7035
#D7D7D7
Light grey
FAQ about Cyan 1
What is the HEX code for Cyan 1?
Cyan 1 (cyan-1) has the HEX code #C5F6FA. In RGB it is rgb(197, 246, 250), and in CMYK it is cmyk(21%, 2%, 0%, 2%).
What is the OKLCH value of Cyan 1?
Cyan 1 converts to oklch(0.941 0.050 202.5). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Cyan 1 accessible for body text?
Used as a background, Cyan 1 has a contrast ratio of 17.94:1 with black text and 1.17:1 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 1?
The closest Pantone reference to Cyan 1 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 1?
The closest RAL Classic reference to Cyan 1 by ΔE2000 distance is RAL 6027 (Light green, #84C3BE). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Cyan 1?
The complementary color (180° opposite on the HSL color wheel) of Cyan 1 is #FACBC7. 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.