#129C56
Closest named color: Kelley Green (#009337). oklch(60.9% 0.151 153.5), rgb(18, 156, 86).
Aa
Black text reads best on this color (5.91:1).
About this color
#129C56 is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.151 and its hue 154°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Kelley Green (#009337), ΔE 0.040 away. Black text reads best on it, at 5.91:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.151) |
| Temperature | in between |
| Nearest name | Kelley Green (#009337) |
| Black text | 5.91:1 |
| White text | 3.55:1 |
Values
| HEX | #129C56 |
| RGB | rgb(18, 156, 86) |
| HSL | hsl(150, 79%, 34%) |
| OKLCH | oklch(60.9% 0.151 153.5) |
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 #129C56 | 3.55:1 | AA large text | Lc -68.0 | Content text, not long reading |
| Black text on #129C56 | 5.91:1 | AA | Lc 41.6 | Non-text elements, placeholder text |
| #129C56 text on white | 3.55:1 | AA large text | Lc 62.5 | Content text, not long reading |
| #129C56 text on black | 5.91:1 | AA | Lc -39.2 | 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 500.
-
Step 50
50
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE3
oklch(93.6% 0.021 152.2)
-
Step 200
200
#C5E2CD
oklch(88.6% 0.042 154)
-
Step 300
300
#9CCFAB
oklch(80.9% 0.073 153.8)
-
Step 400
400
#60B67E
oklch(70.7% 0.118 153.7)
-
Step 500
500 (this color)
#129C56
oklch(60.9% 0.151 153.5)
-
Step 600
600
#008A4A
oklch(55.6% 0.141 153.6)
-
Step 700
700
#00743D
oklch(49% 0.125 153.5)
-
Step 800
800
#005F31
oklch(42.6% 0.108 153.6)
-
Step 900
900
#005028
oklch(37.8% 0.097 153.4)
-
Step 950
950
#062F17
oklch(27% 0.063 153)
#129C56 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) | #9C8E51 | 0.131 |
| Deuteranopia (no green cones) | #8D845B | 0.128 |
| Tritanopia (no blue cones) | #009A8B | 0.077 |
| Achromatopsia (no color) | #888888 | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129C56
#129C56
oklch(60.9% 0.151 153.5)
- #B75CA9
#B75CA9
oklch(61% 0.151 333.3)
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 #129C56, closest first.
No curated palette has a color within ΔE 0.04 of #129C56.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Kelley Green #009337 ΔE 0.040
- Light Forest Green #4F9153 ΔE 0.043
- Jade #1FA774 ΔE 0.046
- Viridian #1E9167 ΔE 0.046
- Irish Green #019529 ΔE 0.047
- Ocean Green #3D9973 ΔE 0.051
- Fern Green #548D44 ΔE 0.051
- Muted Green #5FA052 ΔE 0.051
Use #129C56 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.