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Sea Green

Hex #2E8B57, rgb(46 139 87). A green CSS named color.

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Sea Green color codes

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RGB
HSL
HSV
HWB
CMYK
OKLCH
OKLab
Lab
LCH
CSS keyword

About Sea Green

Sea Green is a medium moderately saturated green with the hex code #2E8B57. In RGB it is made of 46 red, 139 green and 87 blue; in HSL its hue is 146°, with 50% saturation and 36% lightness. Its perceptual lightness (OKLCH L) is 56.9%.

It is a CSS named color, so you can write "seagreen" anywhere CSS accepts a color. Against white it has a contrast ratio of 4.25:1 and against black 4.95:1, so black text reads better on it and passes WCAG AA for normal text.

Tints, shades and tones

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

Tints (with white)

Shades (with black)

Tones (with gray)

Sea Green 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 Sea Green

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 Sea Green with white and black. The readable text color on Sea Green is black.

Sea Green textSmall text on white

On white4.25:1

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

APCA Lc 69

Sea Green textSmall text on black

On black4.95:1

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

APCA Lc -33

Black text on Sea Green (#000000)

Test any pair in the contrast checker.

Color blindness preview

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

  • Protanopia#8B8054
  • Deuteranopia#7F775A
  • Tritanopia#008A7E
  • Protanomaly#7A8256
  • Deuteranomaly#737D5A
  • Tritanomaly#1D8A6B
  • Achromatopsia#7B7B7B

Colors similar to Sea Green

The closest named colors by perceptual difference (OKLab).

Use Sea Green in CSS and Tailwind

CSS
.sea-green {
  color: seagreen; /* #2E8B57 */
  background-color: rgb(46 139 87);
  border-color: oklch(56.9% 0.119 154.9);
}
Tailwind CSS
/* Tailwind CSS v4: bg-sea-green-500, text-sea-green-700... */
@theme {
  --color-sea-green-50: #F6FCF8;
  --color-sea-green-100: #E4F2E8;
  --color-sea-green-200: #CAE4D2;
  --color-sea-green-300: #A0CFAF;
  --color-sea-green-400: #67B383;
  --color-sea-green-500: #419F68;
  --color-sea-green-600: #2E8B57;
  --color-sea-green-700: #207044;
  --color-sea-green-800: #1B5936;
  --color-sea-green-900: #18482C;
  --color-sea-green-950: #001C0C;
}

<!-- or the exact color, no config -->
<div class="bg-[#2E8B57] text-[#000000]">…</div>