#128D02
Closest named color: Emerald Green (#028F1E). oklch(55.9% 0.187 141.9), rgb(18, 141, 2).
Aa
Black text reads best on this color (4.83:1).
About this color
#128D02 is a medium-dark, vivid green. In OKLCH its lightness is 56%, its chroma 0.187 and its hue 142°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald Green (#028F1E), ΔE 0.011 away. Black text reads best on it, at 4.83:1.
| Hue family | Greens |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.187) |
| Temperature | in between |
| Nearest name | Emerald Green (#028F1E) |
| Black text | 4.83:1 |
| White text | 4.34:1 |
Values
| HEX | #128D02 |
| RGB | rgb(18, 141, 2) |
| HSL | hsl(113, 97%, 28%) |
| OKLCH | oklch(55.9% 0.187 141.9) |
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 #128D02 | 4.34:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #128D02 | 4.83:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #128D02 text on white | 4.34:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #128D02 text on black | 4.83:1 | AA | Lc -32.3 | 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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEDF
oklch(93.5% 0.024 141.5)
-
Step 200
200
#C8E1C5
oklch(88.4% 0.046 142.2)
-
Step 300
300
#A2CF9C
oklch(80.9% 0.085 141.7)
-
Step 400
400
#6DB565
oklch(70.6% 0.134 141.9)
-
Step 500
500
#40A236
oklch(63.1% 0.172 141.8)
-
Step 600
600 (this color)
#128D02
oklch(55.9% 0.187 141.9)
-
Step 700
700
#0C7600
oklch(49.2% 0.165 141.9)
-
Step 800
800
#086100
oklch(42.8% 0.144 141.9)
-
Step 900
900
#144F0F
oklch(37.6% 0.112 142)
-
Step 950
950
#0E2F0B
oklch(27.1% 0.072 142)
#128D02 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) | #917E00 | 0.133 |
| Deuteranopia (no green cones) | #84761D | 0.129 |
| Tritanopia (no blue cones) | #008877 | 0.124 |
| Achromatopsia (no color) | #797979 | 0.188 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #128D02
#128D02
oklch(55.9% 0.187 141.9)
- #A444B4
#A444B4
oklch(55.9% 0.187 321.7)
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 #128D02, closest first.
No curated palette has a color within ΔE 0.04 of #128D02.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald Green #028F1E ΔE 0.011
- Forest Green #228B22 ΔE 0.018
- True Green #089404 ΔE 0.021
- Irish Green #019529 ΔE 0.026
- Kelley Green #009337 ΔE 0.031
- Green #008000 ΔE 0.041
- Dark Grass Green #388004 ΔE 0.041
- Tree Green #2A7E19 ΔE 0.048
Use #128D02 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.