#129E5B
Closest named color: Jade (#1FA774). oklch(61.6% 0.149 154.8), rgb(18, 158, 91).
Aa
Black text reads best on this color (6.06:1).
About this color
#129E5B is a medium-dark, vivid green. In OKLCH its lightness is 62%, its chroma 0.149 and its hue 155°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Jade (#1FA774), ΔE 0.038 away. Black text reads best on it, at 6.06:1.
| Hue family | Greens |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.149) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 6.06:1 |
| White text | 3.46:1 |
Values
| HEX | #129E5B |
| RGB | rgb(18, 158, 91) |
| HSL | hsl(151, 80%, 35%) |
| OKLCH | oklch(61.6% 0.149 154.8) |
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 #129E5B | 3.46:1 | AA large text | Lc -67.1 | Content text, not long reading |
| Black text on #129E5B | 6.06:1 | AA | Lc 42.5 | Non-text elements, placeholder text |
| #129E5B text on white | 3.46:1 | AA large text | Lc 61.6 | Content text, not long reading |
| #129E5B text on black | 6.06:1 | AA | Lc -40.1 | 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
#F1F7F3
oklch(97.1% 0.008 157.1)
-
Step 100
100
#E0EEE4
oklch(93.6% 0.02 154.9)
-
Step 200
200
#C5E2CE
oklch(88.6% 0.041 155.4)
-
Step 300
300
#9CCFAC
oklch(80.9% 0.072 154.5)
-
Step 400
400
#5FB680
oklch(70.7% 0.117 154.8)
-
Step 500
500 (this color)
#129E5B
oklch(61.6% 0.149 154.8)
-
Step 600
600
#008A4D
oklch(55.6% 0.138 154.7)
-
Step 700
700
#007440
oklch(49.1% 0.122 154.8)
-
Step 800
800
#005F34
oklch(42.6% 0.105 155.1)
-
Step 900
900
#004F2A
oklch(37.6% 0.093 154.9)
-
Step 950
950
#052F18
oklch(27% 0.062 154.3)
#129E5B 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) | #9D9056 | 0.131 |
| Deuteranopia (no green cones) | #8F8660 | 0.129 |
| Tritanopia (no blue cones) | #009C8D | 0.073 |
| Achromatopsia (no color) | #8A8A8A | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129E5B
#129E5B
oklch(61.6% 0.149 154.8)
- #B95EA8
#B95EA8
oklch(61.5% 0.149 334.7)
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 #129E5B, closest first.
No curated palette has a color within ΔE 0.04 of #129E5B.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jade #1FA774 ΔE 0.038
- Light Forest Green #4F9153 ΔE 0.045
- Ocean Green #3D9973 ΔE 0.047
- Kelley Green #009337 ΔE 0.047
- Viridian #1E9167 ΔE 0.048
- Muted Green #5FA052 ΔE 0.048
- Seaweed Green #35AD6B ΔE 0.050
- Mid Green #50A747 ΔE 0.051
Use #129E5B 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.