#228B31
Closest named color: Forest Green (#228B22). oklch(55.9% 0.158 145.1), rgb(34, 139, 49).
Aa
Black text reads best on this color (4.80:1).
About this color
#228B31 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.158 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.012 away. Black text reads best on it, at 4.80:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.158) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.80:1 |
| White text | 4.37:1 |
Values
| HEX | #228B31 |
| RGB | rgb(34, 139, 49) |
| HSL | hsl(129, 61%, 34%) |
| OKLCH | oklch(55.9% 0.158 145.1) |
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 #228B31 | 4.37:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #228B31 | 4.80:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #228B31 text on white | 4.37:1 | AA large text | Lc 69.8 | Content text, not long reading |
| #228B31 text on black | 4.80:1 | AA | Lc -31.9 | 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 600.
-
Step 50
50
#F2F7F2
oklch(97.1% 0.008 145.5)
-
Step 100
100
#E2EEE2
oklch(93.7% 0.02 145.4)
-
Step 200
200
#CAE1CA
oklch(88.6% 0.04 145.2)
-
Step 300
300
#A4CDA5
oklch(80.8% 0.071 145.5)
-
Step 400
400
#71B374
oklch(70.6% 0.113 145.3)
-
Step 500
500
#47A04E
oklch(63.2% 0.146 145.1)
-
Step 600
600 (this color)
#228B31
oklch(55.9% 0.158 145.1)
-
Step 700
700
#0F7522
oklch(49.1% 0.147 145.1)
-
Step 800
800
#135F1E
oklch(42.6% 0.122 145)
-
Step 900
900
#194E1F
oklch(37.6% 0.095 145.4)
-
Step 950
950
#112E13
oklch(27.1% 0.06 145)
#228B31 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) | #8D7E26 | 0.118 |
| Deuteranopia (no green cones) | #817639 | 0.117 |
| Tritanopia (no blue cones) | #008778 | 0.098 |
| Achromatopsia (no color) | #797979 | 0.159 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #228B31
#228B31
oklch(55.9% 0.158 145.1)
- #A14DA6
#A14DA6
oklch(55.9% 0.159 325.3)
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 #228B31, closest first.
No curated palette has a color within ΔE 0.04 of #228B31.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.012
- Kelley Green #009337 ΔE 0.023
- Emerald Green #028F1E ΔE 0.024
- Irish Green #019529 ΔE 0.033
- Dark Grass Green #388004 ΔE 0.035
- Tree Green #2A7E19 ΔE 0.039
- Jungle Green #048243 ΔE 0.040
- True Green #089404 ΔE 0.042
Use #228B31 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.