#338B00
Closest named color: Forest Green (#228B22). oklch(56.1% 0.176 138.6), rgb(51, 139, 0).
Aa
Black text reads best on this color (4.83:1).
About this color
#338B00 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.176 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Forest Green (#228B22), ΔE 0.015 away. Black text reads best on it, at 4.83:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Forest Green (#228B22) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #338B00 |
| RGB | rgb(51, 139, 0) |
| HSL | hsl(98, 100%, 27%) |
| OKLCH | oklch(56.1% 0.176 138.6) |
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 #338B00 | 4.34:1 | AA large text | Lc -75.1 | Fine for body text |
| Black text on #338B00 | 4.83:1 | AA | Lc 34.5 | Non-text elements, placeholder text |
| #338B00 text on white | 4.34:1 | AA large text | Lc 69.6 | Content text, not long reading |
| #338B00 text on black | 4.83:1 | AA | Lc -32.0 | 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
#F2F7F0
oklch(97% 0.011 136.6)
-
Step 100
100
#E2EEDF
oklch(93.6% 0.024 139.4)
-
Step 200
200
#CBE1C5
oklch(88.6% 0.044 139)
-
Step 300
300
#A7CD9C
oklch(80.8% 0.079 138.7)
-
Step 400
400
#77B364
oklch(70.6% 0.126 138.5)
-
Step 500
500
#519F35
oklch(63% 0.161 138.5)
-
Step 600
600 (this color)
#338B00
oklch(56.1% 0.176 138.6)
-
Step 700
700
#297400
oklch(49.2% 0.154 138.7)
-
Step 800
800
#205F00
oklch(42.8% 0.134 138.7)
-
Step 900
900
#204E0E
oklch(37.7% 0.105 138.6)
-
Step 950
950
#142E0B
oklch(27.1% 0.067 138.6)
#338B00 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) | #907D00 | 0.117 |
| Deuteranopia (no green cones) | #85771B | 0.113 |
| Tritanopia (no blue cones) | #298675 | 0.121 |
| Achromatopsia (no color) | #797979 | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #338B00
#338B00
oklch(56.1% 0.176 138.6)
- #9F4BB5
#9F4BB5
oklch(56.2% 0.176 318.9)
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 #338B00, closest first.
No curated palette has a color within ΔE 0.04 of #338B00.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Forest Green #228B22 ΔE 0.015
- Emerald Green #028F1E ΔE 0.019
- True Green #089404 ΔE 0.029
- Irish Green #019529 ΔE 0.030
- Kelley Green #009337 ΔE 0.032
- Dark Grass Green #388004 ΔE 0.033
- Sap Green #5C8B15 ΔE 0.041
- Green #008000 ΔE 0.043
Use #338B00 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.