#129F55
Closest named color: Jade (#1FA774). oklch(61.7% 0.156 152.7), rgb(18, 159, 85).
Aa
Black text reads best on this color (6.11:1).
About this color
#129F55 is a medium-dark, vivid green. In OKLCH its lightness is 62%, its chroma 0.156 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 6.11:1.
| Hue family | Greens |
| Lightness | medium-dark (62%) |
| Chroma | vivid (0.156) |
| Temperature | in between |
| Nearest name | Jade (#1FA774) |
| Black text | 6.11:1 |
| White text | 3.43:1 |
Values
| HEX | #129F55 |
| RGB | rgb(18, 159, 85) |
| HSL | hsl(149, 80%, 35%) |
| OKLCH | oklch(61.7% 0.156 152.7) |
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 #129F55 | 3.43:1 | AA large text | Lc -66.7 | Content text, not long reading |
| Black text on #129F55 | 6.11:1 | AA | Lc 42.8 | Non-text elements, placeholder text |
| #129F55 text on white | 3.43:1 | AA large text | Lc 61.3 | Content text, not long reading |
| #129F55 text on black | 6.11:1 | AA | Lc -40.4 | 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
#DFEEE3
oklch(93.5% 0.022 154.1)
-
Step 200
200
#C5E2CC
oklch(88.5% 0.043 152.7)
-
Step 300
300
#9BCFA9
oklch(80.8% 0.076 152.8)
-
Step 400
400
#5FB67B
oklch(70.6% 0.121 152.6)
-
Step 500
500 (this color)
#129F55
oklch(61.7% 0.156 152.7)
-
Step 600
600
#008A47
oklch(55.5% 0.144 152.6)
-
Step 700
700
#00743B
oklch(49% 0.127 152.7)
-
Step 800
800
#005F2F
oklch(42.5% 0.11 152.7)
-
Step 900
900
#005027
oklch(37.8% 0.098 152.9)
-
Step 950
950
#052F16
oklch(27% 0.064 152.5)
#129F55 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) | #9F914F | 0.133 |
| Deuteranopia (no green cones) | #90865A | 0.131 |
| Tritanopia (no blue cones) | #009D8D | 0.081 |
| Achromatopsia (no color) | #8A8A8A | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129F55
#129F55
oklch(61.7% 0.156 152.7)
- #BA5DAD
#BA5DAD
oklch(61.7% 0.155 332.8)
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 #129F55, closest first.
No curated palette has a color within ΔE 0.04 of #129F55.
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 0.044
- Mid Green #50A747 ΔE 0.046
- Muted Green #5FA052 ΔE 0.048
- Irish Green #019529 ΔE 0.049
- Light Forest Green #4F9153 ΔE 0.049
- Seaweed Green #35AD6B ΔE 0.050
- Jade Green #2BAF6A ΔE 0.051
Use #129F55 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.