#509C40
Closest named color: Muted Green (#5FA052). oklch(62.3% 0.149 140.3), rgb(80, 156, 64).
Aa
Black text reads best on this color (6.17:1).
About this color
#509C40 is a medium-light, vivid green. In OKLCH its lightness is 62%, its chroma 0.149 and its hue 140°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Muted Green (#5FA052), ΔE 0.028 away. Black text reads best on it, at 6.17:1.
| Hue family | Greens |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Muted Green (#5FA052) |
| Black text | 6.17:1 |
| White text | 3.40:1 |
Values
| HEX | #509C40 |
| RGB | rgb(80, 156, 64) |
| HSL | hsl(110, 42%, 43%) |
| OKLCH | oklch(62.3% 0.149 140.3) |
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 #509C40 | 3.40:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #509C40 | 6.17:1 | AA | Lc 42.8 | Non-text elements, placeholder text |
| #509C40 text on white | 3.40:1 | AA large text | Lc 61.3 | Content text, not long reading |
| #509C40 text on black | 6.17:1 | AA | Lc -40.4 | 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
#F2F7F1
oklch(97.1% 0.01 140.5)
-
Step 100
100
#E3EEE0
oklch(93.7% 0.022 139)
-
Step 200
200
#CBE0C7
oklch(88.4% 0.041 140.7)
-
Step 300
300
#A8CDA0
oklch(81% 0.074 140.1)
-
Step 400
400
#78B26C
oklch(70.6% 0.116 140.2)
-
Step 500
500 (this color)
#509C40
oklch(62.3% 0.149 140.3)
-
Step 600
600
#34891F
oklch(55.7% 0.162 140.2)
-
Step 700
700
#25740F
oklch(49.2% 0.151 140.3)
-
Step 800
800
#215E12
oklch(42.6% 0.124 140.2)
-
Step 900
900
#214D17
oklch(37.6% 0.097 140.1)
-
Step 950
950
#142D0F
oklch(26.8% 0.061 140.4)
#509C40 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) | #A08F37 | 0.102 |
| Deuteranopia (no green cones) | #968947 | 0.102 |
| Tritanopia (no blue cones) | #499788 | 0.100 |
| Achromatopsia (no color) | #8B8B8B | 0.149 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #509C40
#509C40
oklch(62.3% 0.149 140.3)
- #AE66BE
#AE66BE
oklch(62.3% 0.149 320.1)
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 #509C40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Green #5FA052 ΔE 0.028
- Flat Green #699D4C ΔE 0.031
- Mid Green #50A747 ΔE 0.031
- Grass Green #3F9B0B ΔE 0.040
- Grassy Green #419C03 ΔE 0.041
- Off Green #6BA353 ΔE 0.042
- Olive Drab #6B8E23 ΔE 0.043
- Light Forest Green #4F9153 ΔE 0.044
Use #509C40 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.