Seashell
seashell · #FFF5EE
HEX
#FFF5EE
RGB
rgb(255, 245, 238)
CMYK
cmyk(0%, 4%, 7%, 0%)
HSL
hsl(25, 100%, 97%)
LAB
lab(97.1, 2.2, 4.5)
What is Seashell?
Seashell is the seashell reference in the CSS Named Colors. Its sRGB value is #FFF5EE (rgb 255, 245, 238). It sits in the orange family. The 147 named colors defined by the W3C CSS Color Module Level 4 specification — usable directly in CSS as keywords like 'crimson' or 'rebeccapurple'. See disclaimer for accuracy and trademark notes.
Accessibility
WCAG 2.1 contrast checks for Seashell as a background.
Black text on this color
White text on this color
Shades, tints & tonal scale of Seashell
An 11-step tonal scale derived from Seashell (#FFF5EE). 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
#FFFEFE
#FFFEFE
100
#FFFDFC
#FFFDFC
200
#FFFCFA
#FFFCFA
300
#FFFAF7
#FFFAF7
400
#FFF8F2
#FFF8F2
500
#FFF5EE
#FFF5EE
600
#D9D0CA
#D9D0CA
700
#A69F9B
#A69F9B
800
#736E6B
#736E6B
900
#403D3C
#403D3C
950
#1F1D1D
#1F1D1D
Lighter tints (mixed with white)
15%
#FFF7F1
30%
#FFF8F3
45%
#FFFAF6
60%
#FFFBF8
75%
#FFFDFB
Darker shades (mixed with black)
15%
#EDE4DD
30%
#DAD1CB
45%
#C4BCB6
60%
#AAA39E
75%
#89837F
Color harmonies for Seashell
Classic color-theory harmonies derived from rotating the hue of Seashell. Use these to build accent palettes, brand systems, and accessible UI color pairings.
Complementary
180° opposite — strongest contrast
#FFF5EE
#FFF5EE
#F0F9FF
#F0F9FF
Triadic
Three colors 120° apart
#FFF5EE
#FFF5EE
#F0FFF6
#F0FFF6
#F6F0FF
#F6F0FF
Analogous
Two neighbors ±30° on the wheel
#FFF0F1
#FFF0F1
#FFF5EE
#FFF5EE
#FFFEF0
#FFFEF0
Split-complementary
Base + two colors flanking its complement
#FFF5EE
#FFF5EE
#F0FFFE
#F0FFFE
#F0F1FF
#F0F1FF
Tetradic
Two complementary pairs
#FFF5EE
#FFF5EE
#F9FFF0
#F9FFF0
#F0F9FF
#F0F9FF
#F6F0FF
#F6F0FF
Square
Four colors evenly spaced 90° apart
#FFF5EE
#FFF5EE
#F1FFF0
#F1FFF0
#F0F9FF
#F0F9FF
#FEF0FF
#FEF0FF
Seashell in every color space
Full conversion of Seashell 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
#FFF5EE
RGB
rgb(255, 245, 238)
CMYK
cmyk(0%, 4%, 7%, 0%)
HSL
hsl(25, 100%, 97%)
HSV
hsv(25, 7%, 100%)
HWB
hwb(25 93% 0%)
CIE Lab
lab(97.1 2.2 4.5)
OKLCH
oklch(97.6% 0.014 57.6)
XYZ (D65)
xyz(89.32, 92.74, 94.07)
Copy-ready code for Seashell
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: #FFF5EE;
background-color: #FFF5EE;CSS variable
:root {
--color-seashell: #FFF5EE;
}Tailwind config
// tailwind.config.js
colors: {
'seashell': '#FFF5EE',
}Sass
$color-seashell: #FFF5EE;Swift UIColor
UIColor(red: 1.000, green: 0.961, blue: 0.933, alpha: 1.0)Android XML
<color name="seashell">#FFF5EE</color>Closest match in every color system
The nearest Seashell 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 CSS Named Colors
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 9001
#FDF4E3
Cream
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
FAQ about Seashell
What is the HEX code for Seashell?
Seashell (seashell) has the HEX code #FFF5EE. In RGB it is rgb(255, 245, 238), and in CMYK it is cmyk(0%, 4%, 7%, 0%).
What is the OKLCH value of Seashell?
Seashell converts to oklch(0.976 0.014 57.6). OKLCH is the perceptually uniform color space used by Tailwind v4 and CSS Color Module Level 4.
Is Seashell accessible for body text?
Used as a background, Seashell 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 Seashell?
The closest Pantone reference to Seashell 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 Seashell?
The closest RAL Classic reference to Seashell by ΔE2000 distance is RAL 9001 (Cream, #FDF4E3). RAL is a German industrial coating standard commonly used for paint, powder coat, and architectural specification.
What is the complementary color of Seashell?
The complementary color (180° opposite on the HSL color wheel) of Seashell is #F0F9FF. Use it for high-contrast accents, error states, or call-to-action pairings.
Data provenance & source
CSS Named Colors (CSS Color Module Level 4)
The 147 named colors defined by the W3C CSS Color Module Level 4 specification. Origin: VGA (16) + X11 (rest) + 'rebeccapurple'. Use as a reference for web color names that all browsers natively support. Names like 'crimson' or 'rebeccapurple' work as CSS values without any framework.
- Source type
- derived
- Confidence
- high
- License
- W3C permissive document license
- Last reviewed
- 2026-05-24
Workflow tags
CSS named colors are sRGB digital values defined for browsers. For print, convert to a process-appropriate color and proof against substrate.