#338E00
Closest named color: Emerald Green (#028F1E). oklch(56.9% 0.179 138.8), rgb(51, 142, 0).
Aa
Black text reads best on this color (5.00:1).
About this color
#338E00 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.179 and its hue 139°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald Green (#028F1E), ΔE 0.018 away. Black text reads best on it, at 5.00:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.179) |
| Temperature | in between |
| Nearest name | Emerald Green (#028F1E) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #338E00 |
| RGB | rgb(51, 142, 0) |
| HSL | hsl(98, 100%, 28%) |
| OKLCH | oklch(56.9% 0.179 138.8) |
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 #338E00 | 4.19:1 | AA large text | Lc -73.9 | Content text, not long reading |
| Black text on #338E00 | 5.00:1 | AA | Lc 35.7 | Non-text elements, placeholder text |
| #338E00 text on white | 4.19:1 | AA large text | Lc 68.4 | Content text, not long reading |
| #338E00 text on black | 5.00:1 | AA | Lc -33.2 | 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
#A7CE9C
oklch(81% 0.08 138.9)
-
Step 400
400
#76B463
oklch(70.8% 0.129 138.7)
-
Step 500
500
#4FA033
oklch(63.2% 0.165 138.8)
-
Step 600
600 (this color)
#338E00
oklch(56.9% 0.179 138.8)
-
Step 700
700
#287400
oklch(49.2% 0.155 138.8)
-
Step 800
800
#1F5F00
oklch(42.7% 0.134 138.9)
-
Step 900
900
#1F4E0C
oklch(37.7% 0.107 138.6)
-
Step 950
950
#132E0A
oklch(27% 0.068 138.8)
#338E00 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) | #938000 | 0.119 |
| Deuteranopia (no green cones) | #88791B | 0.117 |
| Tritanopia (no blue cones) | #288978 | 0.123 |
| Achromatopsia (no color) | #7C7C7C | 0.180 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #338E00
#338E00
oklch(56.9% 0.179 138.8)
- #A24CB9
#A24CB9
oklch(56.9% 0.179 318.7)
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 #338E00, closest first.
No curated palette has a color within ΔE 0.04 of #338E00.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald Green #028F1E ΔE 0.018
- Forest Green #228B22 ΔE 0.020
- True Green #089404 ΔE 0.022
- Irish Green #019529 ΔE 0.024
- Kelley Green #009337 ΔE 0.030
- Sap Green #5C8B15 ΔE 0.041
- Grass Green #3F9B0B ΔE 0.041
- Dark Grass Green #388004 ΔE 0.042
Use #338E00 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.