#427B23 Color
#427B23 is rgb(66, 123, 35) in RGB, hsl(99, 56%, 31%) in HSL, and about cmyk(46%, 0%, 72%, 52%) in CMYK. It has no registered color name of its own — the closest is Sap Green (#507D2A), clearly related but distinguishable side by side at ΔE 5.01. White text is the more readable choice on this background.
#427B23rgb(66, 123, 35)hsl(99, 56%, 31%)hsv(99, 72%, 48%)cmyk(46%, 0%, 72%, 52%)oklch(52.5% 0.134 136.6)lab(46.33% -31.85 39.77)lch(46.33% 50.95 128.69)What #427B23 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 #427B23, 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.
#427B23 Channel Values
How #427B23 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 66 · G 123 · B 35 | 8-bit channels as sent to the display |
| HSL | H 99° · S 56% · L 31% | Easiest model for building lighter and darker variants |
| HSV | H 99° · S 72% · V 48% | Matches the picker in most design tools |
| CMYK | C 46% · M 0% · Y 72% · K 52% | Approximate ink mix; confirm with an ICC profile before printing |
| Luminance | 5.14:1 vs white · 4.09:1 vs black | WCAG 2.2 relative-luminance contrast ratios |
Text Contrast & Accessibility
WCAG 2.2 contrast ratios for text on a #427B23 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 #427B23 in the contrast checker.
Colors That Go With #427B23
Pairings derived from color-wheel relationships. The complementary color sits opposite #427B23; 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 #427B23
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 #427B23.
How #427B23 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.
#427B23#747424#637723#6C6C28#5E7226#4F7474#4A775E#6E6E6EUsing #427B23 in Code
Copy-ready declarations for the places this color usually ends up.
--color-427b23: #427B23;background-color: #427B23;colors: { 'color-427b23': '#427B23' }Color(red: 0.259, green: 0.482, blue: 0.137)<color name="color_427b23">#427B23</color>fill="#427B23"More Green Colors
#427B23 sits in the green family. These are its neighbours across that family's full range, each with its own breakdown.
#427B23 Frequently Asked Questions
What color is #427B23?
#427B23 is a dark green — rgb(66, 123, 35) in RGB and hsl(99, 56%, 31%) in HSL. It carries no registered color name of its own; the closest named color is Sap Green (#507D2A), which is clearly related but distinguishable side by side at a CIE76 distance of 5.01.
What is the RGB value of #427B23?
#427B23 is rgb(66, 123, 35) — red 66, green 123, and blue 35 on the 0-255 scale.
What is the CMYK value of #427B23?
#427B23 converts to approximately cmyk(46%, 0%, 72%, 52%). CMYK output is a mathematical approximation for planning; confirm production print colors with your printer and ICC profile.
Should text on #427B23 be black or white?
White text is the more readable choice. #427B23 scores 5.14:1 against white and 4.09:1 against black, and WCAG 2.2 asks for at least 4.5:1 for normal body text.
Can I write #427B23 as a CSS color keyword?
No. #427B23 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 darkgreen (#006400) at a CIE76 distance of 12.94, which is visibly different.
Open #427B23 in a Tool
Keep exploring: every green in the color library, the guide to shades of green, or the full color library.