#129E56
Closest named color: Jade (#1FA774). oklch(61.5% 0.153 153.2), rgb(18, 158, 86).
Aa
Black text reads best on this color (6.05:1).
About this color
#129E56 is a medium-dark, vivid green. In OKLCH its lightness is 61%, its chroma 0.153 and its hue 153°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.043 away. Black text reads best on it, at 6.05:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.153) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 6.05:1 |
| White text | 3.47:1 |
Values
| HEX | #129E56 |
| RGB | rgb(18, 158, 86) |
| HSL | hsl(149, 80%, 35%) |
| OKLCH | oklch(61.5% 0.153 153.2) |
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 #129E56 | 3.47:1 | AA large text | Lc -67.1 | Content text, not long reading |
| Black text on #129E56 | 6.05:1 | AA | Lc 42.4 | Non-text elements, placeholder text |
| #129E56 text on white | 3.47:1 | AA large text | Lc 61.7 | Content text, not long reading |
| #129E56 text on black | 6.05:1 | AA | Lc -40.0 | 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
#F1F7F2
oklch(97% 0.009 150.7)
-
Step 100
100
#E0EEE3
oklch(93.6% 0.021 152.2)
-
Step 200
200
#C5E2CC
oklch(88.5% 0.043 152.7)
-
Step 300
300
#9CCFAA
oklch(80.9% 0.074 153)
-
Step 400
400
#5FB67D
oklch(70.7% 0.119 153.4)
-
Step 500
500 (this color)
#129E56
oklch(61.5% 0.153 153.2)
-
Step 600
600
#008A49
oklch(55.5% 0.142 153.3)
-
Step 700
700
#00743C
oklch(49% 0.126 153.1)
-
Step 800
800
#005F30
oklch(42.6% 0.109 153.1)
-
Step 900
900
#005027
oklch(37.8% 0.098 152.9)
-
Step 950
950
#052F17
oklch(27% 0.063 153.4)
#129E56 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) | #9E9051 | 0.132 |
| Deuteranopia (no green cones) | #8F855B | 0.131 |
| Tritanopia (no blue cones) | #009C8D | 0.080 |
| Achromatopsia (no color) | #8A8A8A | 0.154 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129E56
#129E56
oklch(61.5% 0.153 153.2)
- #B95DAB
#B95DAB
oklch(61.5% 0.153 333.3)
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 #129E56, closest first.
No curated palette has a color within ΔE 0.04 of #129E56.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.043
- Kelley Green #009337 ΔE 0.043
- Light Forest Green #4F9153 ΔE 0.047
- Muted Green #5FA052 ΔE 0.049
- Irish Green #019529 ΔE 0.049
- Mid Green #50A747 ΔE 0.049
- Seaweed Green #35AD6B ΔE 0.051
- Viridian #1E9167 ΔE 0.052
Use #129E56 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.