Green color · XKCD survey name
Blue Green Color Code: #137E6D
The HEX code for Blue Green is #137E6D. It is a dark, rich blue-green color made of 19 red, 126 green and 109 blue (HSL 170°, 74%, 28%). White text reads comfortably on it (4.96:1 contrast).
Blue Green color values
#137E6D
rgb(19, 126, 109)
hsl(170, 74%, 28%)
170, 85%, 49%
hwb(170 7% 51%)
85%, 0%, 13%, 51%
1277549
CMYK is a standard screen-to-print conversion. Printed results depend on inks, paper and color profiles.
What is Blue Green?
“Blue Green” is a crowd-sourced name from the XKCD Color Survey, in which participants typed names for colors they were shown. It is a popular everyday label rather than an official standard.
Its hue angle of 170° places it in the blue-green part of the color wheel, with 74% saturation (rich) and 28% lightness (dark). It is a cool color.
Compared with the other green colors in the Aqeeb Studio library, it is lighter than 14% of them and more saturated than 45% of them.
Its relative luminance is 0.162, which makes it a mid-tone color. That is below the 0.179 crossover point at which black and white text have equal contrast, so white text has the advantage.
Blue Green counts as a dark color: its HSL lightness is 28% and its relative luminance is 0.162. White text reads comfortably on it (4.96:1 contrast).
Text contrast on Blue Green
| Text | Preview | Ratio | AA normal | AA large | AAA normal | AAA large |
|---|---|---|---|---|---|---|
| White text | Sample text | 4.96:1 Good | Pass | Pass | Fail | Pass |
| Black text | Sample text | 4.23:1 Limited | Fail | Pass | Fail | Fail |
Ratios use the WCAG 2 formula and are truncated, never rounded up. Test any pair with the contrast checker.
Colors that go with Blue 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 Blue 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 Blue Green
- Button, banner and badge backgrounds with white text (4.96:1 contrast)
- Accents that need to stand out: call-to-action buttons, charts and illustrations
- Large headings, icons and graphics, where a 3:1 contrast ratio is enough
- Calm backgrounds and section fills
- Success and confirmation states (with a label or icon)
- Eco, health and finance-style branding
Use Blue Green in CSS
:root {
--color-blue-green: #137E6D;
}
.element {
color: var(--color-blue-green);
background-color: #137E6D;
border: 2px solid #137E6D;
}Questions about Blue Green
What is the HEX code for Blue Green?
Blue Green is #137E6D.
What is the RGB value of Blue Green?
The RGB value of Blue Green is 19, 126, 109: 19 red, 126 green and 109 blue on a 0–255 scale, written rgb(19, 126, 109) in CSS.
What is the HSL value of Blue Green?
The HSL value of Blue Green is 170°, 74%, 28% (hue, saturation, lightness), written hsl(170, 74%, 28%) in CSS.
What is the CMYK value of Blue Green?
A standard conversion gives about C 85%, M 0%, Y 13%, K 51%. Real print results depend on the inks, paper and color profile, so treat CMYK here as a reference value.
Is Blue Green a light or dark color?
Blue Green counts as a dark color: its HSL lightness is 28% and its relative luminance is 0.162. White text reads comfortably on it (4.96:1 contrast).
How does Blue Green look with white text?
White text on Blue Green has a contrast ratio of 4.96:1, rated Good. It meets WCAG AA for normal text.
How does Blue Green look with black text?
Black text on Blue Green has a contrast ratio of 4.23:1, rated Limited. It does not reach WCAG AA for normal text; use large text only.
What colors go well with Blue Green?
Wine Red is its complementary color, and Jungle Green sits beside it as an analogous color. Lighter and darker variants of the same hue also work well for monochromatic palettes.
Where can Blue Green be used?
It suits button, banner and badge backgrounds with white text (4.96:1 contrast); accents that need to stand out: call-to-action buttons, charts and illustrations; large headings, icons and graphics, where a 3:1 contrast ratio is enough.
How do I use Blue Green in CSS?
Use color: #137E6D; for text, background-color: #137E6D; for fills, or define a custom property such as --color-blue-green: #137E6D; and reuse it with var(--color-blue-green).
About this color page
Crowd-sourced name from the XKCD Color Survey (CC0). 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.