Yellow 100
yellow-100 · #FEF9C3
HEX
#FEF9C3
RGB
rgb(254, 249, 195)
CMYK
cmyk(0%, 2%, 23%, 0%)
HSL
hsl(55, 97%, 88%)
LAB
lab(97.1, -6.7, 26.6)
What is Yellow 100?
Yellow 100 is the yellow-100 reference in the Tailwind CSS palette. Its sRGB value is #FEF9C3 (rgb 254, 249, 195). It sits in the yellow 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 Yellow 100 as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Yellow 100
An 11-step tonal scale derived from Yellow 100 (#FEF9C3). 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
#FFFFFA
#FFFFFA
100
#FFFEF5
#FFFEF5
200
#FFFDEC
#FFFDEC
300
#FFFCE1
#FFFCE1
400
#FEFBD2
#FEFBD2
500
#FEF9C3
#FEF9C3
600
#D8D4A6
#D8D4A6
700
#A5A27F
#A5A27F
800
#727058
#727058
900
#403E31
#403E31
950
#1E1E17
#1E1E17
Lighter tints (mixed with white)
15%
#FEFACE
30%
#FEFBD7
45%
#FEFCE1
60%
#FFFDE9
75%
#FFFEF2
Darker shades (mixed with black)
15%
#ECE8B5
30%
#D9D5A6
45%
#C3BF95
60%
#A9A681
75%
#888667
Color harmonies for Yellow 100
Classic color-theory harmonies derived from rotating the hue of Yellow 100. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#FEF9C3
#FEF9C3
#C3C8FE
#C3C8FE
Triadic
Three colors 120° apart
#FEF9C3
#FEF9C3
#C3FEF9
#C3FEF9
#F9C3FE
#F9C3FE
Analogous
Two neighbors ±30° on the wheel
#FEDBC3
#FEDBC3
#FEF9C3
#FEF9C3
#E5FEC3
#E5FEC3
Split-complementary
Base + two colors flanking its complement
#FEF9C3
#FEF9C3
#C3E5FE
#C3E5FE
#DBC3FE
#DBC3FE
Tetradic
Two complementary pairs
#FEF9C3
#FEF9C3
#C8FEC3
#C8FEC3
#C3C8FE
#C3C8FE
#F9C3FE
#F9C3FE
Square
Four colors evenly spaced 90° apart
#FEF9C3
#FEF9C3
#C3FEDB
#C3FEDB
#C3C8FE
#C3C8FE
#FEC3E5
#FEC3E5
Yellow 100 in every color space
Full conversion of Yellow 100 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
#FEF9C3
RGB
rgb(254, 249, 195)
CMYK
cmyk(0%, 2%, 23%, 0%)
HSL
hsl(55, 97%, 88%)
HSV
hsv(55, 23%, 100%)
HWB
hwb(55 76% 0%)
CIE Lab
lab(97.1 -6.7 26.6)
OKLCH
oklch(97.3% 0.069 103.2)
XYZ (D65)
xyz(84.60, 92.76, 65.07)
Copy-ready code for Yellow 100
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: #FEF9C3;
background-color: #FEF9C3;CSS variable
:root {
--color-yellow-100: #FEF9C3;
}Tailwind config
// tailwind.config.js
colors: {
'yellow-100': '#FEF9C3',
}Sass
$color-yellow-100: #FEF9C3;Swift UIColor
UIColor(red: 0.996, green: 0.976, blue: 0.765, alpha: 1.0)Android XML
<color name="yellow-100">#FEF9C3</color>Closest match in every color system
The nearest Yellow 100 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 1013
#EAE6CA
Oyster white
RAL 1015
#E6D690
Light ivory
RAL 9002
#E7EBDA
Grey white
RAL 9001
#FDF4E3
Cream
RAL 6019
#BDECB6
Pastel green
RAL 1000
#BEBD7F
Green beige
FAQ about Yellow 100
What is the HEX code for Yellow 100?
Yellow 100 (yellow-100) has the HEX code #FEF9C3. In RGB it is rgb(254, 249, 195), and in CMYK it is cmyk(0%, 2%, 23%, 0%).
What is the OKLCH value of Yellow 100?
Yellow 100 converts to oklch(0.973 0.069 103.2). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Yellow 100 accessible for body text?
Used as a background, Yellow 100 has a contrast ratio of 19.55:1 with black text and 1.07:1 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 Yellow 100?
The closest Pantone reference to Yellow 100 by ΔE2000 perceptual distance is Pantone 100 C (#F4ED7C). Cross-system Pantone matching is approximate; for color-critical print work, verify with a physical Pantone guide.
What is the closest RAL color to Yellow 100?
The closest RAL Classic reference to Yellow 100 by ΔE2000 distance is RAL 1013 (Oyster white, #EAE6CA). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Yellow 100?
The complementary color (180° opposite on the HSL color wheel) of Yellow 100 is #C3C8FE. 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.