Stone 900
stone-900 · #1C1917
HEX
#1C1917
RGB
rgb(28, 25, 23)
CMYK
cmyk(0%, 11%, 18%, 89%)
HSL
hsl(24, 10%, 10%)
LAB
lab(9.0, 1.0, 1.9)
What is Stone 900?
Stone 900 is the stone-900 reference in the Tailwind CSS palette. Its sRGB value is #1C1917 (rgb 28, 25, 23). 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 Stone 900 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Stone 900
An 11-step tonal scale derived from Stone 900 (#1C1917). 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
#EDEDEC
#EDEDEC
100
#DBDADA
#DBDADA
200
#B6B5B5
#B6B5B5
300
#8E8C8B
#8E8C8B
400
#555351
#555351
500
#1C1917
#1C1917
600
#181514
#181514
700
#12100F
#12100F
800
#0D0B0A
#0D0B0A
900
#070606
#070606
950
#030303
#030303
Lighter tints (mixed with white)
15%
#6F6F6E
30%
#979696
45%
#B4B4B4
60%
#CCCCCC
75%
#E1E1E1
Darker shades (mixed with black)
15%
#191615
30%
#161412
45%
#13100F
60%
#0F0D0B
75%
#0A0807
Color harmonies for Stone 900
Classic color-theory harmonies derived from rotating the hue of Stone 900. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#1C1917
#1C1917
#171A1C
#171A1C
Triadic
Three colors 120° apart
#1C1917
#1C1917
#171C19
#171C19
#19171C
#19171C
Analogous
Two neighbors ±30° on the wheel
#1C1717
#1C1717
#1C1917
#1C1917
#1C1C17
#1C1C17
Split-complementary
Base + two colors flanking its complement
#1C1917
#1C1917
#171C1C
#171C1C
#17171C
#17171C
Tetradic
Two complementary pairs
#1C1917
#1C1917
#1A1C17
#1A1C17
#171A1C
#171A1C
#19171C
#19171C
Square
Four colors evenly spaced 90° apart
#1C1917
#1C1917
#171C17
#171C17
#171A1C
#171A1C
#1C171C
#1C171C
Stone 900 in every color space
Full conversion of Stone 900 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
#1C1917
RGB
rgb(28, 25, 23)
CMYK
cmyk(0%, 11%, 18%, 89%)
HSL
hsl(24, 10%, 10%)
HSV
hsv(24, 18%, 11%)
HWB
hwb(24 9% 89%)
CIE Lab
lab(9.0 1.0 1.9)
OKLCH
oklch(21.6% 0.006 56.0)
XYZ (D65)
xyz(0.98, 1.00, 0.95)
Copy-ready code for Stone 900
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: #1C1917;
background-color: #1C1917;CSS variable
:root {
--color-stone-900: #1C1917;
}Tailwind config
// tailwind.config.js
colors: {
'stone-900': '#1C1917',
}Sass
$color-stone-900: #1C1917;Swift UIColor
UIColor(red: 0.110, green: 0.098, blue: 0.090, alpha: 1.0)Android XML
<color name="stone-900">#1C1917</color>Closest match in every color system
The nearest Stone 900 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 9011
#1C1C1C
Graphite black
RAL 9017
#1E1E1E
Traffic black
RAL 8022
#212121
Black brown
RAL 6022
#25221B
Olive drab
RAL 9005
#0A0A0A
Jet black
RAL 5004
#18171C
Black blue
FAQ about Stone 900
What is the HEX code for Stone 900?
Stone 900 (stone-900) has the HEX code #1C1917. In RGB it is rgb(28, 25, 23), and in CMYK it is cmyk(0%, 11%, 18%, 89%).
What is the OKLCH value of Stone 900?
Stone 900 converts to oklch(0.216 0.006 56.0). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Stone 900 accessible for body text?
Used as a background, Stone 900 has a contrast ratio of 1.20:1 with black text and 17.49:1 with white text. WCAG 2.1 AA requires 4.5:1 for normal text. The current recommendation is to use white text and verify in real UI context.
What is the closest Pantone to Stone 900?
The closest Pantone reference to Stone 900 by ΔE2000 perceptual distance is Pantone Black C (#2D2926). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Stone 900?
The closest RAL Classic reference to Stone 900 by ΔE2000 distance is RAL 9011 (Graphite black, #1C1C1C). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Stone 900?
The complementary color (180° opposite on the HSL color wheel) of Stone 900 is #171A1C. 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.