CSS color names · Whites

Seashell color: hex #fff5ee, RGB and HSL

Seashell is the CSS keyword seashell, hex #fff5ee, rgb(255, 245, 238), hsl(25, 100%, 97%). It is a very light, fully saturated orange in the whites family. Below: the colors that go with it, its tints and shades, how it reads as text, and a complete interface palette built from it.

CSS name
seashell
Hex
#fff5ee
RGB
rgb(255, 245, 238)
HSL
hsl(25, 100%, 97%)
On white
1.07:1 — fails AA; use as a fill, not text
On black
19.55:1 — passes AA for body text
.example {
  color: seashell;          /* keyword */
  color: #fff5ee;          /* hex */
  color: rgb(255, 245, 238); /* rgb */
  color: hsl(25, 100%, 97%); /* hsl */
}

What colors go with seashell

Each match keeps seashell's saturation and lightness and rotates only the hue, so the relationship is the wheel's and nothing else. Any of these can be an accent beside seashell as the primary; the harmony guides explain which rule suits which interface.

Complementary

The opposite hue, 180° away — the strongest contrast, best kept to one accent per screen.

#eef8ff

Split-complementary

The two neighbors of the complement, at 150° and 210° — most of the contrast with less tension, and two accents instead of one.

#eefffe
#eef0ff

Triadic

Two hues at 120° and 240° — three evenly spaced signals, the scheme charts and category colors want.

#eefff5
#f5eeff

Analogous

The neighbors at −30° and +30° — calm and cohesive, with emphasis coming from weight and size rather than hue.

#ffeef0
#fffeee

Tints and shades of seashell

Tints add lightness toward white; shades remove it toward black. The hue and saturation stay fixed, so every step still reads as seashell — these are the hover, pressed, disabled and surface variants a single brand color needs.

Tints (lighter)

#fff7f1
#fff8f4
#fffaf7
#fffcf9
#fffdfc

Shades (darker)

#ffc59c
#ff944a
#f76600
#a44400
#522200

A UI color palette built from seashell

The eight semantic roles an interface actually uses, derived from seashell as the primary with the split-complementary rule: secondary and accent rotate around the wheel, and the five neutrals take the hue at lightness steps tuned for light and dark mode. This is the same derivation the palette generator runs — open it there to change the rule, drag the anchors, or export the set as CSS variables.

Light mode
primary
#fff5ee
secondary
#eefffe
accent
#eef0ff
background
#fdfcfc
surface
#f7f4f3
text
#221811
muted
#8f6e56
border
#ece4df
Dark mode
primary
#fff5ee
secondary
#eefffe
accent
#eef0ff
background
#1b130e
surface
#281d15
text
#f6f5f3
muted
#b8a394
border
#493527

Using seashell in an interface

The near-whites are page backgrounds. A canvas at ivory or alice blue instead of pure white is the difference between a page that feels designed and one that feels blank — and it is exactly what a tinted `background` role does in a semantic palette. Whichever role seashell takes, define it once as a token rather than repeating the keyword: the semantic palette guide covers the eight roles, and the guides to complementary, triadic and the other color schemes explain how to weight the matches above.

What is the hex code for Seashell?
Seashell is #fff5ee. In CSS the keyword seashell, the hex #fff5ee, rgb(255, 245, 238) and hsl(25, 100%, 97%) all paint the same color.
What colors go with Seashell?
Its complement is #eef8ff, the split-complementary pair is #eefffe and #eef0ff, the triadic partners are #eefff5 and #f5eeff, and the analogous neighbors are #ffeef0 and #fffeee. In an interface, use Seashell for most colored elements and one of these for a single accent, at roughly an 80/20 split.
What is the opposite of Seashell on the color wheel?
The opposite (complementary) color is #eef8ff, the same saturation and lightness rotated 180° around the HSL wheel. Complementary pairs give the strongest contrast, which is why the complement should be used sparingly rather than at equal weight.
Can I use Seashell for text?
Seashell as text on white has a contrast ratio of 1.07:1, which fails WCAG AA for body text (4.5:1) and for large text (3:1). On black it is 19.55:1, which passes for body text. Use it as text on dark surfaces, or as a fill with dark text on top.

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