#309E27
Closest named color: Grass Green (#3F9B0B). oklch(61.4% 0.183 142), rgb(48, 158, 39).
Aa
Black text reads best on this color (6.04:1).
About this color
#309E27 is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.183 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Grass Green (#3F9B0B), ΔE 0.013 away. Black text reads best on it, at 6.04:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.183) |
| Temperature | in between |
| Nearest name | Grass Green (#3F9B0B) |
| Black text | 6.04:1 |
| White text | 3.47:1 |
Values
| HEX | #309E27 |
| RGB | rgb(48, 158, 39) |
| HSL | hsl(115, 60%, 39%) |
| OKLCH | oklch(61.4% 0.183 142) |
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 #309E27 | 3.47:1 | AA large text | Lc -67.3 | Content text, not long reading |
| Black text on #309E27 | 6.04:1 | AA | Lc 42.3 | Non-text elements, placeholder text |
| #309E27 text on white | 3.47:1 | AA large text | Lc 61.8 | Content text, not long reading |
| #309E27 text on black | 6.04:1 | AA | Lc -39.9 | 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
#F1F8F0
oklch(97.2% 0.013 141.8)
-
Step 100
100
#E1EFDF
oklch(93.7% 0.026 141.8)
-
Step 200
200
#C7E2C4
oklch(88.5% 0.05 142.4)
-
Step 300
300
#A0D09A
oklch(81% 0.09 141.9)
-
Step 400
400
#68B760
oklch(70.8% 0.145 142)
-
Step 500
500 (this color)
#309E27
oklch(61.4% 0.183 142)
-
Step 600
600
#0E8C00
oklch(55.6% 0.187 142)
-
Step 700
700
#0A7600
oklch(49.1% 0.165 142)
-
Step 800
800
#066100
oklch(42.8% 0.144 142)
-
Step 900
900
#0D5008
oklch(37.7% 0.119 142.1)
-
Step 950
950
#0B2F08
oklch(27% 0.076 142)
#309E27 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) | #A28F0F | 0.128 |
| Deuteranopia (no green cones) | #958634 | 0.129 |
| Tritanopia (no blue cones) | #149987 | 0.119 |
| Achromatopsia (no color) | #8A8A8A | 0.184 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #309E27
#309E27
oklch(61.4% 0.183 142)
- #B557C4
#B557C4
oklch(61.4% 0.183 322)
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 #309E27, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Grass Green #3F9B0B ΔE 0.013
- Grassy Green #419C03 ΔE 0.014
- Irish Green #019529 ΔE 0.034
- Kelly Green #02AB2E ΔE 0.037
- True Green #089404 ΔE 0.038
- Kelley Green #009337 ΔE 0.042
- Mid Green #50A747 ΔE 0.046
- Medium Green #39AD48 ΔE 0.048
Use #309E27 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.