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Seashell

Hex #FFF5EE, rgb(255 245 238). A white CSS named color.

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Seashell color codes

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HEX
RGB
HSL
HSV
HWB
CMYK
OKLCH
OKLab
Lab
LCH
CSS keyword

About Seashell

Seashell is a very light near-white with the hex code #FFF5EE. In RGB it is made of 255 red, 245 green and 238 blue; in HSL its hue is 25°, with 100% saturation and 97% lightness. Its perceptual lightness (OKLCH L) is 97.6%.

It is a CSS named color, so you can write "seashell" anywhere CSS accepts a color. Against white it has a contrast ratio of 1.07:1 and against black 19.55:1, so black text reads better on it and passes WCAG AA for normal text.

Tints, shades and tones

Seashell mixed step by step with white, black and middle gray (#808080).

Tints (with white)

Shades (with black)

Tones (with gray)

Seashell 50-950 scale

A Tailwind-style scale built in OKLCH; the original color sits on the step with the closest lightness.

Colors that go with Seashell

Color harmonies rotate the hue in OKLCH and keep the lightness and chroma. Each color links to its closest named color.

Complementary

Analogous

Triadic

Split complementary

Tetradic

Square

Monochromatic

Contrast and readability

WCAG 2 contrast of Seashell with white and black. The readable text color on Seashell is black.

Seashell textSmall text on white

On white1.07:1

  • AA fail
  • AA Large fail
  • AAA fail
  • UI 3:1 fail

APCA Lc 0

Seashell textSmall text on black

On black19.55:1

  • AA pass
  • AA Large pass
  • AAA pass
  • UI 3:1 pass

APCA Lc -102

Black text on Seashell (#000000)

Test any pair in the contrast checker.

Color blindness preview

How Seashell appears with each type of color vision deficiency (simulated with the Machado model).

  • Protanopia#F8F5EE
  • Deuteranopia#FAF8EE
  • Tritanopia#FFF3F3
  • Protanomaly#FAF6EE
  • Deuteranomaly#FBF7EE
  • Tritanomaly#FFF4F0
  • Achromatopsia#F7F7F7

Colors similar to Seashell

The closest named colors by perceptual difference (OKLab).

Use Seashell in CSS and Tailwind

CSS
.seashell {
  color: seashell; /* #FFF5EE */
  background-color: rgb(255 245 238);
  border-color: oklch(97.6% 0.014 57.6);
}
Tailwind CSS
/* Tailwind CSS v4: bg-seashell-500, text-seashell-700... */
@theme {
  --color-seashell-50: #FFF5EE;
  --color-seashell-100: #FCE6D6;
  --color-seashell-200: #F8CFB1;
  --color-seashell-300: #F4AB73;
  --color-seashell-400: #E37B00;
  --color-seashell-500: #C46900;
  --color-seashell-600: #A85900;
  --color-seashell-700: #884700;
  --color-seashell-800: #6E3800;
  --color-seashell-900: #5A2D00;
  --color-seashell-950: #260F00;
}

<!-- or the exact color, no config -->
<div class="bg-[#FFF5EE] text-[#000000]">…</div>