#129F4B
Closest named color: Kelley Green (#009337). oklch(61.6% 0.165 150.1), rgb(18, 159, 75).
Aa
Black text reads best on this color (6.08:1).
About this color
#129F4B is a medium-dark, vivid green. In OKLCH its lightness is 62%, its chroma 0.165 and its hue 150°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelley Green (#009337), ΔE 0.039 away. Black text reads best on it, at 6.08:1.
| Hue family | Greens |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.165) |
| Temperature | in between |
| Nearest name | Kelley Green (#009337) |
| Black text | 6.08:1 |
| White text | 3.45:1 |
Values
| HEX | #129F4B |
| RGB | rgb(18, 159, 75) |
| HSL | hsl(144, 80%, 35%) |
| OKLCH | oklch(61.6% 0.165 150.1) |
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 #129F4B | 3.45:1 | AA large text | Lc -66.9 | Content text, not long reading |
| Black text on #129F4B | 6.08:1 | AA | Lc 42.6 | Non-text elements, placeholder text |
| #129F4B text on white | 3.45:1 | AA large text | Lc 61.4 | Content text, not long reading |
| #129F4B text on black | 6.08:1 | AA | Lc -40.3 | 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 500.
-
Step 50
50
#F1F8F2
oklch(97.2% 0.011 149.9)
-
Step 100
100
#DFEFE2
oklch(93.7% 0.024 151.2)
-
Step 200
200
#C5E2CA
oklch(88.5% 0.045 150.3)
-
Step 300
300
#9BD0A5
oklch(80.9% 0.082 150)
-
Step 400
400
#5FB775
oklch(70.7% 0.129 150.1)
-
Step 500
500 (this color)
#129F4B
oklch(61.6% 0.165 150.1)
-
Step 600
600
#008B3E
oklch(55.6% 0.154 149.9)
-
Step 700
700
#007533
oklch(49.1% 0.136 149.9)
-
Step 800
800
#006029
oklch(42.7% 0.118 150)
-
Step 900
900
#005021
oklch(37.7% 0.104 150)
-
Step 950
950
#052F13
oklch(26.9% 0.068 150)
#129F4B 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) | #A09044 | 0.135 |
| Deuteranopia (no green cones) | #918651 | 0.133 |
| Tritanopia (no blue cones) | #009C8C | 0.092 |
| Achromatopsia (no color) | #8A8A8A | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129F4B
#129F4B
oklch(61.6% 0.165 150.1)
- #BA5AB3
#BA5AB3
oklch(61.5% 0.165 330.2)
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 #129F4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelley Green #009337 ΔE 0.039
- Irish Green #019529 ΔE 0.040
- Grass Green #3F9B0B ΔE 0.042
- Mid Green #50A747 ΔE 0.044
- Grassy Green #419C03 ΔE 0.044
- Medium Green #39AD48 ΔE 0.048
- Kelly Green #02AB2E ΔE 0.050
- Muted Green #5FA052 ΔE 0.051
Use #129F4B 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.