#509E23
Closest named color: Grassy Green (#419C03). oklch(62.6% 0.172 136.8), rgb(80, 158, 35).
Aa
Black text reads best on this color (6.25:1).
About this color
#509E23 is a medium-light, vivid green. In OKLCH its lightness is 63%, its chroma 0.172 and its hue 137°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grassy Green (#419C03), ΔE 0.020 away. Black text reads best on it, at 6.25:1.
| Hue family | Greens |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.172) |
| Temperature | in between |
| Nearest name | Grassy Green (#419C03) |
| Black text | 6.25:1 |
| White text | 3.35:1 |
Values
| HEX | #509E23 |
| RGB | rgb(80, 158, 35) |
| HSL | hsl(98, 64%, 38%) |
| OKLCH | oklch(62.6% 0.172 136.8) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #509E23 | 3.35:1 | AA large text | Lc -66.2 | Content text, not long reading |
| Black text on #509E23 | 6.25:1 | AA | Lc 43.4 | Non-text elements, placeholder text |
| #509E23 text on white | 3.35:1 | AA large text | Lc 60.7 | Content text, not long reading |
| #509E23 text on black | 6.25:1 | AA | Lc -41.0 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E3EEDE
oklch(93.6% 0.024 135.7)
-
Step 200
200
#CBE1C3
oklch(88.5% 0.047 137.3)
-
Step 300
300
#A7CE98
oklch(80.9% 0.085 137.1)
-
Step 400
400
#77B45D
oklch(70.8% 0.135 137)
-
Step 500
500 (this color)
#509E23
oklch(62.6% 0.172 136.8)
-
Step 600
600
#3C8800
oklch(55.6% 0.168 136.9)
-
Step 700
700
#327200
oklch(49% 0.148 136.7)
-
Step 800
800
#275E00
oklch(42.7% 0.129 137)
-
Step 900
900
#214E02
oklch(37.7% 0.112 136.7)
-
Step 950
950
#142E06
oklch(27% 0.072 136.7)
#509E23 with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #A39003 | 0.106 |
| Deuteranopia (no green cones) | #998A30 | 0.107 |
| Tritanopia (no blue cones) | #4C9887 | 0.122 |
| Achromatopsia (no color) | #8C8C8C | 0.173 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509E23
#509E23
oklch(62.6% 0.172 136.8)
- #B061CB
#B061CB
oklch(62.5% 0.172 316.9)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #509E23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grassy Green #419C03 ΔE 0.020
- Grass Green #3F9B0B ΔE 0.021
- Mid Green #50A747 ΔE 0.034
- Leaf Green #5CA904 ΔE 0.038
- Grass #5CAC2D ΔE 0.043
- Medium Green #39AD48 ΔE 0.044
- Kelly Green #02AB2E ΔE 0.045
- Muted Green #5FA052 ΔE 0.047
Use #509E23 in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.