#A1D237 Color
#A1D237 is rgb(161, 210, 55) in RGB, hsl(79, 63%, 52%) in HSL, and about cmyk(23%, 0%, 74%, 18%) in CMYK. It has no registered color name of its own — the closest is Yellow Green (#9ACD32), below the threshold most people can see at ΔE 2.07. Black text is the more readable choice on this background.
#A1D237rgb(161, 210, 55)hsl(79, 63%, 52%)hsv(79, 74%, 82%)cmyk(23%, 0%, 74%, 18%)oklch(80.1% 0.184 125.9)lab(78.67% -32.37 66.00)lch(78.67% 73.51 116.13)What #A1D237 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 #A1D237, 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.
#A1D237 Channel Values
How #A1D237 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 161 · G 210 · B 55 | 8-bit channels as sent to the display |
| HSL | H 79° · S 63% · L 52% | Easiest model for building lighter and darker variants |
| HSV | H 79° · S 74% · V 82% | Matches the picker in most design tools |
| CMYK | C 23% · M 0% · Y 74% · K 18% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 1.78:1 vs white · 11.79:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #A1D237 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 #A1D237 in the contrast checker.
Colors That Go With #A1D237
Pairings derived from color-wheel relationships. The complementary color sits opposite #A1D237; 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 #A1D237
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 #A1D237.
How #A1D237 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.
#A1D237#CBCB38#BBCE38#C4C43D#B7C93A#B0C7C7#AACBA1#C2C2C2Using #A1D237 in Code
Copy-ready declarations for the places this color usually ends up.
--color-a1d237: #A1D237;background-color: #A1D237;colors: { 'color-a1d237': '#A1D237' }Color(red: 0.631, green: 0.824, blue: 0.216)<color name="color_a1d237">#A1D237</color>fill="#A1D237"More Green Colors
#A1D237 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.
#A1D237 Frequently Asked Questions
What color is #A1D237?
#A1D237 is a mid-tone green — rgb(161, 210, 55) in RGB and hsl(79, 63%, 52%) in HSL. It carries no registered color name of its own; the closest named color is Yellow Green (#9ACD32), which is below the threshold most people can see at a CIE76 distance of 2.07.
What is the RGB value of #A1D237?
#A1D237 is rgb(161, 210, 55) — red 161, green 210, and blue 55 on the 0-255 scale.
What is the CMYK value of #A1D237?
#A1D237 converts to approximately cmyk(23%, 0%, 74%, 18%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #A1D237 be black or white?
Black text is the more readable choice. #A1D237 scores 1.78:1 against white and 11.79:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #A1D237 as a CSS color keyword?
No. #A1D237 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 yellowgreen (#9ACD32) at a CIE76 distance of 2.07, which is below the threshold most people can see.
Open #A1D237 in a Tool
Keep exploring: every green in the color library, the guide to shades of green, or the full color library.