#118B40
Closest named color: Forest Green (#228B22). oklch(55.8% 0.149 149.7), rgb(17, 139, 64).
Aa
Black text reads best on this color (4.79:1).
About this color
#118B40 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.149 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.027 away. Black text reads best on it, at 4.79:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.79:1 |
| White text | 4.38:1 |
Values
| HEX | #118B40 |
| RGB | rgb(17, 139, 64) |
| HSL | hsl(143, 78%, 31%) |
| OKLCH | oklch(55.8% 0.149 149.7) |
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 #118B40 | 4.38:1 | AA large text | Lc -75.3 | Fine for body text |
| Black text on #118B40 | 4.79:1 | AA | Lc 34.3 | Non-text elements, placeholder text |
| #118B40 text on white | 4.38:1 | AA large text | Lc 69.8 | Content text, not long reading |
| #118B40 text on black | 4.79:1 | AA | Lc -31.8 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E1EEE3
oklch(93.6% 0.02 150.1)
-
Step 200
200
#C9E1CC
oklch(88.6% 0.038 148.9)
-
Step 300
300
#A2CDAA
oklch(80.8% 0.067 150.2)
-
Step 400
400
#6DB37C
oklch(70.6% 0.107 149.8)
-
Step 500
500
#40A05A
oklch(63.1% 0.138 149.6)
-
Step 600
600 (this color)
#118B40
oklch(55.8% 0.149 149.7)
-
Step 700
700
#007532
oklch(49.1% 0.137 149.6)
-
Step 800
800
#076029
oklch(42.8% 0.116 149.4)
-
Step 900
900
#144E26
oklch(37.6% 0.089 149.9)
-
Step 950
950
#0E2E17
oklch(27% 0.057 150.2)
#118B40 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) | #8C7E39 | 0.122 |
| Deuteranopia (no green cones) | #7F7546 | 0.121 |
| Tritanopia (no blue cones) | #00887A | 0.085 |
| Achromatopsia (no color) | #797979 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #118B40
#118B40
oklch(55.8% 0.149 149.7)
- #A34E9D
#A34E9D
oklch(55.8% 0.15 330.1)
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 #118B40, closest first.
No curated palette has a color within ΔE 0.04 of #118B40.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.027
- Kelley Green #009337 ΔE 0.029
- Jungle Green #048243 ΔE 0.030
- Sea Green #2E8B57 ΔE 0.035
- Emerald Green #028F1E ΔE 0.036
- Irish Green #019529 ΔE 0.042
- Tree Green #2A7E19 ΔE 0.044
- Dark Grass Green #388004 ΔE 0.044
Use #118B40 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.