#129A43
Closest named color: Kelley Green (#009337). oklch(60.1% 0.166 148.7), rgb(18, 154, 67).
Aa
Black text reads best on this color (5.72:1).
About this color
#129A43 is a medium-dark, vivid green. In OKLCH its lightness is 60%, its chroma 0.166 and its hue 149°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelley Green (#009337), ΔE 0.023 away. Black text reads best on it, at 5.72:1.
| Hue family | Greens |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.166) |
| Temperature | in between |
| Nearest name | Kelley Green (#009337) |
| Black text | 5.72:1 |
| White text | 3.66:1 |
Values
| HEX | #129A43 |
| RGB | rgb(18, 154, 67) |
| HSL | hsl(142, 79%, 34%) |
| OKLCH | oklch(60.1% 0.166 148.7) |
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 #129A43 | 3.66:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #129A43 | 5.72:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #129A43 text on white | 3.66:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #129A43 text on black | 5.72:1 | AA | Lc -38.0 | 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 500.
-
Step 50
50
#F1F8F1
oklch(97.2% 0.012 145.5)
-
Step 100
100
#E0EEE1
oklch(93.5% 0.023 147.4)
-
Step 200
200
#C6E2C9
oklch(88.5% 0.045 148.2)
-
Step 300
300
#9DD0A4
oklch(81% 0.081 148.5)
-
Step 400
400
#61B772
oklch(70.8% 0.131 148.6)
-
Step 500
500 (this color)
#129A43
oklch(60.1% 0.166 148.7)
-
Step 600
600
#008B39
oklch(55.6% 0.158 148.7)
-
Step 700
700
#00752F
oklch(49.1% 0.139 148.8)
-
Step 800
800
#006025
oklch(42.7% 0.121 148.7)
-
Step 900
900
#00501E
oklch(37.6% 0.107 148.8)
-
Step 950
950
#072F12
oklch(27% 0.068 148.6)
#129A43 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) | #9B8C3B | 0.132 |
| Deuteranopia (no green cones) | #8D824A | 0.131 |
| Tritanopia (no blue cones) | #009787 | 0.096 |
| Achromatopsia (no color) | #858585 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129A43
#129A43
oklch(60.1% 0.166 148.7)
- #B456B0
#B456B0
oklch(60.1% 0.165 329)
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 #129A43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelley Green #009337 ΔE 0.023
- Irish Green #019529 ΔE 0.027
- Grass Green #3F9B0B ΔE 0.039
- Emerald Green #028F1E ΔE 0.042
- True Green #089404 ΔE 0.042
- Grassy Green #419C03 ΔE 0.042
- Forest Green #228B22 ΔE 0.046
- Light Forest Green #4F9153 ΔE 0.052
Use #129A43 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.