#309F4C
Closest named color: Mid Green (#50A747). oklch(62.1% 0.156 148), rgb(48, 159, 76).
Aa
Black text reads best on this color (6.18:1).
About this color
#309F4C is a medium-light, vivid green. In OKLCH its lightness is 62%, its chroma 0.156 and its hue 148°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Mid Green (#50A747), ΔE 0.036 away. Black text reads best on it, at 6.18:1.
| Hue family | Greens |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Mid Green (#50A747) |
| Black text | 6.18:1 |
| White text | 3.39:1 |
Values
| HEX | #309F4C |
| RGB | rgb(48, 159, 76) |
| HSL | hsl(135, 54%, 41%) |
| OKLCH | oklch(62.1% 0.156 148) |
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 #309F4C | 3.39:1 | AA large text | Lc -66.5 | Content text, not long reading |
| Black text on #309F4C | 6.18:1 | AA | Lc 43.1 | Non-text elements, placeholder text |
| #309F4C text on white | 3.39:1 | AA large text | Lc 61.0 | Content text, not long reading |
| #309F4C text on black | 6.18:1 | AA | Lc -40.7 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE2
oklch(93.5% 0.022 149.7)
-
Step 200
200
#C7E1CA
oklch(88.4% 0.042 148.5)
-
Step 300
300
#9FCFA5
oklch(80.9% 0.077 148.2)
-
Step 400
400
#67B574
oklch(70.6% 0.122 148.1)
-
Step 500
500 (this color)
#309F4C
oklch(62.1% 0.156 148)
-
Step 600
600
#008B36
oklch(55.5% 0.161 148.1)
-
Step 700
700
#00752C
oklch(49% 0.142 148)
-
Step 800
800
#006023
oklch(42.7% 0.123 148.1)
-
Step 900
900
#0B4F1F
oklch(37.6% 0.101 148)
-
Step 950
950
#0B2F13
oklch(27.1% 0.065 147.8)
#309F4C 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) | #A19145 | 0.125 |
| Deuteranopia (no green cones) | #938852 | 0.122 |
| Tritanopia (no blue cones) | #009C8C | 0.090 |
| Achromatopsia (no color) | #8B8B8B | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #309F4C
#309F4C
oklch(62.1% 0.156 148)
- #B760B5
#B760B5
oklch(62.1% 0.155 328.1)
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 #309F4C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Green #50A747 ΔE 0.036
- Muted Green #5FA052 ΔE 0.040
- Grass Green #3F9B0B ΔE 0.043
- Medium Green #39AD48 ΔE 0.044
- Grassy Green #419C03 ΔE 0.045
- Kelley Green #009337 ΔE 0.045
- Irish Green #019529 ΔE 0.047
- Flat Green #699D4C ΔE 0.047
Use #309F4C 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.