#129128
Closest named color: Emerald Green (#028F1E). oklch(57.3% 0.176 144.7), rgb(18, 145, 40).
Aa
Black text reads best on this color (5.10:1).
About this color
#129128 is a medium-dark, vivid green. In OKLCH its lightness is 57%, its chroma 0.176 and its hue 145°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Emerald Green (#028F1E), ΔE 0.010 away. Black text reads best on it, at 5.10:1.
| Hue family | Greens |
| Lightness | medium-dark (57%) |
| Chroma | vivid (0.176) |
| Temperature | in between |
| Nearest name | Emerald Green (#028F1E) |
| Black text | 5.10:1 |
| White text | 4.11:1 |
Values
| HEX | #129128 |
| RGB | rgb(18, 145, 40) |
| HSL | hsl(130, 78%, 32%) |
| OKLCH | oklch(57.3% 0.176 144.7) |
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 #129128 | 4.11:1 | AA large text | Lc -73.1 | Content text, not long reading |
| Black text on #129128 | 5.10:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #129128 text on white | 4.11:1 | AA large text | Lc 67.6 | Content text, not long reading |
| #129128 text on black | 5.10:1 | AA | Lc -34.0 | 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
#F1F7F1
oklch(97% 0.01 145.5)
-
Step 100
100
#E1EEE1
oklch(93.6% 0.022 145.4)
-
Step 200
200
#C8E1C8
oklch(88.4% 0.043 145.2)
-
Step 300
300
#A1CFA1
oklch(81% 0.08 144.8)
-
Step 400
400
#6BB56D
oklch(70.7% 0.127 144.7)
-
Step 500
500
#3DA244
oklch(63.2% 0.162 144.5)
-
Step 600
600 (this color)
#129128
oklch(57.3% 0.176 144.7)
-
Step 700
700
#00761A
oklch(49.2% 0.156 144.6)
-
Step 800
800
#016114
oklch(42.8% 0.136 144.6)
-
Step 900
900
#124F19
oklch(37.6% 0.105 144.8)
-
Step 950
950
#0D2F10
oklch(27.1% 0.067 145)
#129128 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) | #948317 | 0.129 |
| Deuteranopia (no green cones) | #877A33 | 0.129 |
| Tritanopia (no blue cones) | #008D7C | 0.109 |
| Achromatopsia (no color) | #7D7D7D | 0.176 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129128
#129128
oklch(57.3% 0.176 144.7)
- #A94BB0
#A94BB0
oklch(57.2% 0.176 324.8)
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 #129128, closest first.
No curated palette has a color within ΔE 0.04 of #129128.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Emerald Green #028F1E ΔE 0.010
- Irish Green #019529 ΔE 0.012
- Kelley Green #009337 ΔE 0.012
- Forest Green #228B22 ΔE 0.017
- True Green #089404 ΔE 0.021
- Grass Green #3F9B0B ΔE 0.043
- Grassy Green #419C03 ΔE 0.047
- Dark Grass Green #388004 ΔE 0.049
Use #129128 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.