Gray 0
gray-0 · #F8F9FA
HEX
#F8F9FA
RGB
rgb(248, 249, 250)
CMYK
cmyk(1%, 0%, 0%, 2%)
HSL
hsl(210, 17%, 98%)
LAB
lab(97.9, -0.1, -0.6)
What is Gray 0?
Gray 0 is the gray-0 reference in the Open Color. Its sRGB value is #F8F9FA (rgb 248, 249, 250). It sits in the blue 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 Gray 0 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Gray 0
An 11-step tonal scale derived from Gray 0 (#F8F9FA). 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
#FEFFFF
#FEFFFF
100
#FEFEFE
#FEFEFE
200
#FDFDFD
#FDFDFD
300
#FCFCFD
#FCFCFD
400
#FAFBFB
#FAFBFB
500
#F8F9FA
#F8F9FA
600
#D3D4D5
#D3D4D5
700
#A1A2A3
#A1A2A3
800
#707071
#707071
900
#3E3E3F
#3E3E3F
950
#1E1E1E
#1E1E1E
Lighter tints (mixed with white)
15%
#F9FAFB
30%
#FAFBFC
45%
#FBFCFC
60%
#FCFDFD
75%
#FDFEFE
Darker shades (mixed with black)
15%
#E7E8E9
30%
#D4D5D6
45%
#BEBFC0
60%
#A5A6A6
75%
#858686
Color harmonies for Gray 0
Classic color-theory harmonies derived from rotating the hue of Gray 0. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#F8F9FA
#F8F9FA
#FBFAF9
#FBFAF9
Triadic
Three colors 120° apart
#F8F9FA
#F8F9FA
#FBF9FA
#FBF9FA
#FAFBF9
#FAFBF9
Analogous
Two neighbors ±30° on the wheel
#F9FBFB
#F9FBFB
#F8F9FA
#F8F9FA
#F9F9FB
#F9F9FB
Split-complementary
Base + two colors flanking its complement
#F8F9FA
#F8F9FA
#FBF9F9
#FBF9F9
#FBFBF9
#FBFBF9
Tetradic
Two complementary pairs
#F8F9FA
#F8F9FA
#FAF9FB
#FAF9FB
#FBFAF9
#FBFAF9
#FAFBF9
#FAFBF9
Square
Four colors evenly spaced 90° apart
#F8F9FA
#F8F9FA
#FBF9FB
#FBF9FB
#FBFAF9
#FBFAF9
#F9FBF9
#F9FBF9
Gray 0 in every color space
Full conversion of Gray 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
#F8F9FA
RGB
rgb(248, 249, 250)
CMYK
cmyk(1%, 0%, 0%, 2%)
HSL
hsl(210, 17%, 98%)
HSV
hsv(210, 1%, 98%)
HWB
hwb(210 97% 2%)
CIE Lab
lab(97.9 -0.1 -0.6)
OKLCH
oklch(98.2% 0.002 247.8)
XYZ (D65)
xyz(89.84, 94.61, 103.95)
Copy-ready code for Gray 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: #F8F9FA;
background-color: #F8F9FA;CSS variable
:root {
--color-gray-0: #F8F9FA;
}Tailwind config
// tailwind.config.js
colors: {
'gray-0': '#F8F9FA',
}Sass
$color-gray-0: #F8F9FA;Swift UIColor
UIColor(red: 0.973, green: 0.976, blue: 0.980, alpha: 1.0)Android XML
<color name="gray-0">#F8F9FA</color>Closest match in every color system
The nearest Gray 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 7035
#D7D7D7
Light grey
RAL 9018
#D7D7D7
Papyrus white
RAL 9001
#FDF4E3
Cream
FAQ about Gray 0
What is the HEX code for Gray 0?
Gray 0 (gray-0) has the HEX code #F8F9FA. In RGB it is rgb(248, 249, 250), and in CMYK it is cmyk(1%, 0%, 0%, 2%).
What is the OKLCH value of Gray 0?
Gray 0 converts to oklch(0.982 0.002 247.8). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Gray 0 accessible for body text?
Used as a background, Gray 0 has a contrast ratio of 19.92:1 with black text and 1.05:1 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 Gray 0?
The closest Pantone reference to Gray 0 by ΔE2000 perceptual distance is Pantone Cool Gray 1 C (#D9D9D6). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Gray 0?
The closest RAL Classic reference to Gray 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 Gray 0?
The complementary color (180° opposite on the HSL color wheel) of Gray 0 is #FBFAF9. 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.