Zinc 400
zinc-400 · #A1A1AA
HEX
#A1A1AA
RGB
rgb(161, 161, 170)
CMYK
cmyk(5%, 5%, 0%, 33%)
HSL
hsl(240, 5%, 65%)
LAB
lab(66.5, 1.8, -4.7)
What is Zinc 400?
Zinc 400 is the zinc-400 reference in the Tailwind CSS palette. Its sRGB value is #A1A1AA (rgb 161, 161, 170). It sits in the neutral family. The default color palette shipped with Tailwind CSS v3 by Tailwind Labs. 22 color families across 11 lightness steps (50 to 950). See disclaimer for accuracy and trademark notes.
Accessibility
WCAG 2.1 contrast checks for Zinc 400 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Zinc 400
An 11-step tonal scale derived from Zinc 400 (#A1A1AA). 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
#F7F7F8
#F7F7F8
100
#F0F0F1
#F0F0F1
200
#E1E1E4
#E1E1E4
300
#D0D0D5
#D0D0D5
400
#B9B9BF
#B9B9BF
500
#A1A1AA
#A1A1AA
600
#898991
#898991
700
#69696F
#69696F
800
#48484D
#48484D
900
#28282B
#28282B
950
#131314
#131314
Lighter tints (mixed with white)
15%
#B3B3BA
30%
#C4C4C9
45%
#D2D2D6
60%
#E0E0E2
75%
#ECECED
Darker shades (mixed with black)
15%
#96969E
30%
#898991
45%
#7A7A81
60%
#696970
75%
#545459
Color harmonies for Zinc 400
Classic color-theory harmonies derived from rotating the hue of Zinc 400. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#A1A1AA
#A1A1AA
#AAAAA1
#AAAAA1
Triadic
Three colors 120° apart
#A1A1AA
#A1A1AA
#AAA1A1
#AAA1A1
#A1AAA1
#A1AAA1
Analogous
Two neighbors ±30° on the wheel
#A1A6AA
#A1A6AA
#A1A1AA
#A1A1AA
#A6A1AA
#A6A1AA
Split-complementary
Base + two colors flanking its complement
#A1A1AA
#A1A1AA
#AAA6A1
#AAA6A1
#A6AAA1
#A6AAA1
Tetradic
Two complementary pairs
#A1A1AA
#A1A1AA
#AAA1AA
#AAA1AA
#AAAAA1
#AAAAA1
#A1AAA1
#A1AAA1
Square
Four colors evenly spaced 90° apart
#A1A1AA
#A1A1AA
#AAA1A6
#AAA1A6
#AAAAA1
#AAAAA1
#A1AAA6
#A1AAA6
Zinc 400 in every color space
Full conversion of Zinc 400 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
#A1A1AA
RGB
rgb(161, 161, 170)
CMYK
cmyk(5%, 5%, 0%, 33%)
HSL
hsl(240, 5%, 65%)
HSV
hsv(240, 5%, 67%)
HWB
hwb(240 63% 33%)
CIE Lab
lab(66.5 1.8 -4.7)
OKLCH
oklch(71.2% 0.013 286.1)
XYZ (D65)
xyz(34.70, 35.97, 43.14)
Copy-ready code for Zinc 400
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: #A1A1AA;
background-color: #A1A1AA;CSS variable
:root {
--color-zinc-400: #A1A1AA;
}Tailwind config
// tailwind.config.js
colors: {
'zinc-400': '#A1A1AA',
}Sass
$color-zinc-400: #A1A1AA;Swift UIColor
UIColor(red: 0.631, green: 0.631, blue: 0.667, alpha: 1.0)Android XML
<color name="zinc-400">#A1A1AA</color>Closest match in every color system
The nearest Zinc 400 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 Tailwind CSS palette
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 7040
#9DA1AA
Window grey
RAL 7004
#9EA0A1
Signal grey
RAL 9006
#A5A5A5
White aluminium
RAL 7001
#8F999F
Silver grey
RAL 9007
#8F8F8F
Grey aluminium
RAL 7000
#7E8B92
Squirrel grey
FAQ about Zinc 400
What is the HEX code for Zinc 400?
Zinc 400 (zinc-400) has the HEX code #A1A1AA. In RGB it is rgb(161, 161, 170), and in CMYK it is cmyk(5%, 5%, 0%, 33%).
What is the OKLCH value of Zinc 400?
Zinc 400 converts to oklch(0.712 0.013 286.1). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Zinc 400 accessible for body text?
Used as a background, Zinc 400 has a contrast ratio of 8.19:1 with black text and 2.56:1 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 Zinc 400?
The closest Pantone reference to Zinc 400 by ΔE2000 perceptual distance is Pantone Cool Gray 6 C (#A7A8AA). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Zinc 400?
The closest RAL Classic reference to Zinc 400 by ΔE2000 distance is RAL 7040 (Window grey, #9DA1AA). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Zinc 400?
The complementary color (180° opposite on the HSL color wheel) of Zinc 400 is #AAAAA1. Use it for high-contrast accents, error states, or call-to-action pairings.
Data provenance & source
Tailwind CSS default palette (v3)
The default color palette shipped with Tailwind CSS v3 by Tailwind Labs Inc. Use as a reference for design tokens, web color systems, and Tailwind-based design conversations. Names like 'blue-500' are the project's own naming convention.
- Source type
- derived
- Confidence
- high
- License
- MIT
- Last reviewed
- 2026-05-24
Workflow tags
Tailwind palette values are designed for digital interfaces under sRGB. For print, convert to a process-appropriate value and proof against the substrate; do not rely on sRGB CMYK conversion for color-critical print work.