#306E40
Closest named color: Dark Olive Green (#556B2F). oklch(48.5% 0.098 149.8), rgb(48, 110, 64).
Aa
White text reads best on this color (6.12:1).
About this color
#306E40 is a medium-dark, moderately saturated green. In OKLCH its lightness is 48%, its chroma 0.098 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Olive Green (#556B2F), ΔE 0.041 away. White text reads best on it, at 6.12:1.
| Hue family | Greens |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.098) |
| Temperature | in between |
| Nearest name | Dark Olive Green (#556B2F) |
| Black text | 3.43:1 |
| White text | 6.12:1 |
Values
| HEX | #306E40 |
| RGB | rgb(48, 110, 64) |
| HSL | hsl(135, 39%, 31%) |
| OKLCH | oklch(48.5% 0.098 149.8) |
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 #306E40 | 6.12:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #306E40 | 3.43:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #306E40 text on white | 6.12:1 | AA | Lc 80.3 | Fine for body text |
| #306E40 text on black | 3.43:1 | AA large text | Lc -21.5 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F7F3
oklch(97.2% 0.007 145.5)
-
Step 100
100
#E4EDE5
oklch(93.7% 0.014 148.8)
-
Step 200
200
#CEDED0
oklch(88.5% 0.026 149.1)
-
Step 300
300
#ACCAB1
oklch(81% 0.047 150)
-
Step 400
400
#7FAE88
oklch(70.7% 0.075 150)
-
Step 500
500
#5D9A6A
oklch(63.1% 0.096 149.8)
-
Step 600
600
#418451
oklch(55.5% 0.105 149.7)
-
Step 700
700 (this color)
#306E40
oklch(48.5% 0.098 149.8)
-
Step 800
800
#2A5B36
oklch(42.6% 0.081 149.8)
-
Step 900
900
#274B2F
oklch(37.7% 0.064 149.7)
-
Step 950
950
#182C1C
oklch(27.1% 0.039 149.5)
#306E40 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) | #6F653D | 0.082 |
| Deuteranopia (no green cones) | #665F43 | 0.080 |
| Tritanopia (no blue cones) | #226C63 | 0.055 |
| Achromatopsia (no color) | #626262 | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #306E40
#306E40
oklch(48.5% 0.098 149.8)
- #7D4979
#7D4979
oklch(48.4% 0.098 329.7)
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 #306E40, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Olive Green #556B2F ΔE 0.041
- Camo Green #526525 ΔE 0.044
- Camouflage Green #4B6113 ΔE 0.052
- Pine #2B5D34 ΔE 0.054
- Dark Moss Green #606C38 ΔE 0.055
- Spruce #0A5F38 ΔE 0.057
- Army Green #4B5D16 ΔE 0.058
- Dark Green Blue #1F6357 ΔE 0.059
Use #306E40 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.