What is the hex code for Light Sea Green?

Light Sea Green is #20b2aa. In CSS the keyword lightseagreen, the hex #20b2aa, rgb(32, 178, 170) and hsl(177, 70%, 41%) all paint the same color.

What is the opposite of Light Sea Green on the color wheel?

The opposite (complementary) color is #b22028, 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 Light Sea Green for text?

Light Sea Green as text on white has a contrast ratio of 2.62:1, which fails WCAG AA for body text (4.5:1) and for large text (3:1). On black it is 8.01:1, which passes for body text. Use it as text on dark surfaces, or as a fill with dark text on top.

CSS color names · Greens

Light Sea Green color: hex #20b2aa, RGB and HSL

Light Sea Green is the CSS keyword lightseagreen, hex #20b2aa, rgb(32, 178, 170), hsl(177, 70%, 41%). It is a dark, vivid cyan in the greens 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: lightseagreen
Hex: #20b2aa
RGB: rgb(32, 178, 170)
HSL: hsl(177, 70%, 41%)
On white: 2.62:1 — fails AA; use as a fill, not text
On black: 8.01:1 — passes AA for body text

.example {
  color: lightseagreen;          /* keyword */
  color: #20b2aa;          /* hex */
  color: rgb(32, 178, 170); /* rgb */
  color: hsl(177, 70%, 41%); /* hsl */
}

What colors go with light sea green

Each match keeps light sea green'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 light sea green 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.

#b22028

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.

#b22071

#b26120

Triadic

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

#aa20b2

#b2aa20

Analogous

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

#20b261

#2071b2

Tints and shades of light sea green

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

Tints (lighter)

#2bd9cf

#55e1d9

#80e8e2

#aaf0ec

#d5f7f5

Shades (darker)

#1b948e

#157771

#105955

#0b3b39

#051e1c

A UI color palette built from light sea green

The eight semantic roles an interface actually uses, derived from light sea green 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: #20b2aa
secondary: #b22071
accent: #b26120
background: #fcfdfd
surface: #f3f7f7
text: #112221
muted: #568f8c
border: #dfeceb

Dark mode

primary: #3cdcd3
secondary: #dc3c95
accent: #dc843c
background: #0e1b1a
surface: #152827
text: #f3f6f6
muted: #94b8b6
border: #274947

Open light sea green in the palette generator

Using light sea green in an interface

Green means success and 'on' — reserve one green for that job before you use another as a brand color. Sea green, forest green and teal are calm enough to lead a palette; the neon greens are for dark-mode accents and little else. Whichever role light sea green 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 Light Sea Green?: Light Sea Green is #20b2aa. In CSS the keyword lightseagreen, the hex #20b2aa, rgb(32, 178, 170) and hsl(177, 70%, 41%) all paint the same color.
What colors go with Light Sea Green?: Its complement is #b22028, the split-complementary pair is #b22071 and #b26120, the triadic partners are #aa20b2 and #b2aa20, and the analogous neighbors are #20b261 and #2071b2. In an interface, use Light Sea Green for most colored elements and one of these for a single accent, at roughly an 80/20 split.
What is the opposite of Light Sea Green on the color wheel?: The opposite (complementary) color is #b22028, 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 Light Sea Green for text?: Light Sea Green as text on white has a contrast ratio of 2.62:1, which fails WCAG AA for body text (4.5:1) and for large text (3:1). On black it is 8.01:1, which passes for body text. Use it as text on dark surfaces, or as a fill with dark text on top.