#1BF38B Color
#1BF38B is rgb(27, 243, 139) in RGB, hsl(151, 90%, 53%) in HSL, and about cmyk(89%, 0%, 43%, 5%) in CMYK. It has no registered color name of its own — the closest is Medium Spring Green (#00FA9A), clearly related but distinguishable side by side at ΔE 5.11. Black text is the more readable choice on this background.
#1BF38Brgb(27, 243, 139)hsl(151, 90%, 53%)hsv(151, 89%, 95%)cmyk(89%, 0%, 43%, 5%)oklch(84.8% 0.209 154.1)lab(85.03% -66.68 36.10)lch(85.03% 75.83 151.57)What #1BF38B Is Called
Most hex codes have no name: there are 16.7 million of them and a few thousand registered names. These are the named colors nearest to #1BF38B, ordered by CIE76 distance in CIELAB. Anything under about ΔE 2 is a difference most people cannot see.
Browse the full index of named colors A-Z or every green in the library.
#1BF38B Channel Values
How #1BF38B breaks down in each color model. Hue is measured in degrees around the color wheel; saturation, lightness, and the CMYK inks are percentages.
| Model | Channels | Notes |
|---|---|---|
| RGB | R 27 · G 243 · B 139 | 8-bit channels as sent to the display |
| HSL | H 151° · S 90% · L 53% | Easiest model for building lighter and darker variants |
| HSV | H 151° · S 89% · V 95% | Matches the picker in most design tools |
| CMYK | C 89% · M 0% · Y 43% · K 5% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 1.47:1 vs white · 14.24:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #1BF38B background. AA requires 4.5:1 for normal text and 3:1 for large text; AAA requires 7:1. Contrast is one check, not a full accessibility review.
Need a specific ratio against another background? Open #1BF38B in the contrast checker.
Colors That Go With #1BF38B
Pairings derived from color-wheel relationships. The complementary color sits opposite #1BF38B; analogous colors sit beside it; triadic and split-complementary sets spread evenly around the wheel. Select any swatch for its own breakdown.
Tints & Shades of #1BF38B
Lighter tints and darker shades built by moving the lightness channel while holding hue and saturation, which is what you want for hover states, backgrounds, and text variants.
Want a full 50-950 ramp with semantic roles? Generate design tokens from #1BF38B.
How #1BF38B Looks with Color Vision Deficiency
Simulated with the Viénot, Brettel & Mollon LMS projection model. Anomalous types are rendered as partial versions of the matching dichromacy, which is an approximation rather than a per-person clinical model.
#1BF38B#E0E08C#B3E88C#CCCC91#A3DD8F#56E9E9#45EDCA#D5D5D5Using #1BF38B in Code
Copy-ready declarations for the places this color usually ends up.
--color-1bf38b: #1BF38B;background-color: #1BF38B;colors: { 'color-1bf38b': '#1BF38B' }Color(red: 0.106, green: 0.953, blue: 0.545)<color name="color_1bf38b">#1BF38B</color>fill="#1BF38B"More Green Colors
#1BF38B sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.
#1BF38B Frequently Asked Questions
What color is #1BF38B?
#1BF38B is a mid-tone green — rgb(27, 243, 139) in RGB and hsl(151, 90%, 53%) in HSL. It carries no registered color name of its own; the closest named color is Medium Spring Green (#00FA9A), which is clearly related but distinguishable side by side at a CIE76 distance of 5.11.
What is the RGB value of #1BF38B?
#1BF38B is rgb(27, 243, 139) — red 27, green 243, and blue 139 on the 0-255 scale.
What is the CMYK value of #1BF38B?
#1BF38B converts to approximately cmyk(89%, 0%, 43%, 5%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #1BF38B be black or white?
Black text is the more readable choice. #1BF38B scores 1.47:1 against white and 14.24:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #1BF38B as a CSS color keyword?
No. #1BF38B is not one of the CSS color keywords, so it has to be written as a hex, rgb() or hsl() value. The closest keyword is mediumspringgreen (#00FA9A) at a CIE76 distance of 5.11, which is clearly related but distinguishable side by side.
Open #1BF38B in a Tool
Keep exploring: every green in the color library, the guide to shades of green, or the full color library.