Green color · CSS named color
Sea Green Color Code: #2E8B57
Sea Green (#2E8B57) is a medium-dark, rich green shade: RGB 46, 139, 87, HSL 146°, 50%, 36%. Black text reads best on it (4.94:1 contrast).
Sea Green color values
#2E8B57
rgb(46, 139, 87)
hsl(146, 50%, 36%)
146, 67%, 55%
hwb(146 18% 45%)
67%, 0%, 37%, 45%
3050327
seagreen
CMYK is a standard screen-to-print conversion. Printed results depend on inks, paper and color profiles.
What is Sea Green?
Sea Green is one of the named colors defined by the CSS Color specifications (keyword “seagreen”), so every modern browser understands it without a hex code.
Its hue angle of 146° places it in the green part of the color wheel, with 50% saturation (rich) and 36% lightness (medium-dark). It sits between warm and cool.
Compared with the other green colors in the Aqeeb Studio library, it is lighter than 24% of them and more saturated than 24% of them.
Its relative luminance is 0.197, which makes it a mid-tone color. That is above the 0.179 crossover point at which black and white text have equal contrast, so black text has the advantage.
Sea Green counts as a light color: its HSL lightness is 36% and its relative luminance is 0.197. Black text reads best on it (4.94:1 contrast).
Text contrast on Sea Green
| Text | Preview | Ratio | AA normal | AA large | AAA normal | AAA large |
|---|---|---|---|---|---|---|
| White text | Sample text | 4.24:1 Limited | Fail | Pass | Fail | Fail |
| Black text | Sample text | 4.94:1 Good | Pass | Pass | Fail | Pass |
Ratios use the WCAG 2 formula and are truncated, never rounded up. Test any pair with the contrast checker.
Colors that go with Sea Green
Complementary color
Complementary colors sit directly opposite each other on the color wheel (180° apart). They give the strongest hue contrast, which suits calls to action and accents.
Analogous colors
Analogous colors are neighbors on the wheel, 30° either side of the base hue. They blend smoothly and are easy to combine in backgrounds, gradients and illustrations.
Triadic colors
A triadic scheme uses three hues spaced 120° apart. It is lively yet balanced, and works best when one color leads and the other two act as accents.
Split-complementary colors
Split-complementary keeps the base color and uses the two colors on either side of its complement (150° and 210°). The contrast is strong but gentler than a direct complement.
Tetradic colors
A tetradic (rectangle) scheme combines two complementary pairs at 0°, 60°, 180° and 240°. It offers variety but needs one dominant color to stay balanced.
Monochromatic variants
Monochromatic variants keep the same hue and saturation and only change lightness, which makes them dependable for UI scales and subtle layered designs.
A “≈” before a name means the exact harmony color has no named match, so the link goes to the closest named color.
Tints and shades of Sea Green
Lighter tints (mixed with white)
Darker shades (mixed with black)
Select any swatch to copy its HEX code. Build longer scales with the tints and shades tool.
Similar colors
Where to use Sea Green
- Card, highlight and section backgrounds with dark text (4.94:1 contrast with black)
- Large headings, icons and graphics, where a 3:1 contrast ratio is enough
- Charts, maps and nature illustrations
- Calm backgrounds and section fills
- Success and confirmation states (with a label or icon)
- Eco, health and finance-style branding
Sea Green appears in these curated palettes: Forest (Green Color Palettes), Green and Gold (Green Color Palettes), Green and Pink (Green Color Palettes), Jewel Tones (Vibrant Color Palettes), Mono and Green (Minimal Color Palettes), Status Colors (UI Color Palettes).
Use Sea Green in CSS
:root {
--color-sea-green: #2E8B57;
}
.element {
color: var(--color-sea-green);
background-color: #2E8B57;
border: 2px solid #2E8B57;
}Questions about Sea Green
What is the HEX code for Sea Green?
Sea Green is #2E8B57.
What is the RGB value of Sea Green?
The RGB value of Sea Green is 46, 139, 87: 46 red, 139 green and 87 blue on a 0–255 scale, written rgb(46, 139, 87) in CSS.
What is the HSL value of Sea Green?
The HSL value of Sea Green is 146°, 50%, 36% (hue, saturation, lightness), written hsl(146, 50%, 36%) in CSS.
What is the CMYK value of Sea Green?
A standard conversion gives about C 67%, M 0%, Y 37%, K 45%. Real print results depend on the inks, paper and color profile, so treat CMYK here as a reference value.
Is Sea Green a light or dark color?
Sea Green counts as a light color: its HSL lightness is 36% and its relative luminance is 0.197. Black text reads best on it (4.94:1 contrast).
How does Sea Green look with white text?
White text on Sea Green has a contrast ratio of 4.24:1, rated Limited. It does not reach WCAG AA for normal text; use large text only.
How does Sea Green look with black text?
Black text on Sea Green has a contrast ratio of 4.94:1, rated Good. It meets WCAG AA for normal text.
What colors go well with Sea Green?
Velvet is its complementary color, and Tree Green sits beside it as an analogous color. Lighter and darker variants of the same hue also work well for monochromatic palettes.
Where can Sea Green be used?
It suits card, highlight and section backgrounds with dark text (4.94:1 contrast with black); large headings, icons and graphics, where a 3:1 contrast ratio is enough; charts, maps and nature illustrations.
How do I use Sea Green in CSS?
Use color: #2E8B57; for text, background-color: #2E8B57; for fills, or define a custom property such as --color-sea-green: #2E8B57; and reuse it with var(--color-sea-green).
About this color page
CSS named color (W3C CSS Color Module). Values are calculated from the HEX code; color names are labels, not trademarks or standards unless stated. Screens render colors differently, so always check important colors on your own device. See the disclaimer.