#129B6E
Closest named color: Ocean Green (#3D9973). oklch(61.2% 0.128 163.5), rgb(18, 155, 110).
Aa
Black text reads best on this color (5.93:1).
About this color
#129B6E is a medium-dark, moderately saturated green. In OKLCH its lightness is 61%, its chroma 0.128 and its hue 164°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Ocean Green (#3D9973), ΔE 0.023 away. Black text reads best on it, at 5.93:1.
| Hue family | Greens |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.128) |
| Temperature | in between |
| Nearest name | Ocean Green (#3D9973) |
| Black text | 5.93:1 |
| White text | 3.53:1 |
Values
| HEX | #129B6E |
| RGB | rgb(18, 155, 110) |
| HSL | hsl(160, 79%, 34%) |
| OKLCH | oklch(61.2% 0.128 163.5) |
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 #129B6E | 3.53:1 | AA large text | Lc -67.9 | Content text, not long reading |
| Black text on #129B6E | 5.93:1 | AA | Lc 41.7 | Non-text elements, placeholder text |
| #129B6E text on white | 3.53:1 | AA large text | Lc 62.4 | Content text, not long reading |
| #129B6E text on black | 5.93:1 | AA | Lc -39.3 | 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
#F1F7F4
oklch(97.1% 0.007 164.9)
-
Step 100
100
#E0EEE6
oklch(93.6% 0.018 161.1)
-
Step 200
200
#C5E1D3
oklch(88.5% 0.035 164.1)
-
Step 300
300
#9CCEB6
oklch(81% 0.062 163.9)
-
Step 400
400
#60B48F
oklch(70.6% 0.1 163.4)
-
Step 500
500 (this color)
#129B6E
oklch(61.2% 0.128 163.5)
-
Step 600
600
#00885F
oklch(55.5% 0.119 163.5)
-
Step 700
700
#007350
oklch(49.2% 0.105 163.6)
-
Step 800
800
#005E41
oklch(42.7% 0.091 163.9)
-
Step 900
900
#004F35
oklch(37.8% 0.082 162.9)
-
Step 950
950
#062E1F
oklch(26.9% 0.052 163.5)
#129B6E 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) | #988F6B | 0.124 |
| Deuteranopia (no green cones) | #898471 | 0.120 |
| Tritanopia (no blue cones) | #009B8F | 0.049 |
| Achromatopsia (no color) | #888888 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129B6E
#129B6E
oklch(61.2% 0.128 163.5)
- #B86297
#B86297
oklch(61.2% 0.128 343.8)
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 #129B6E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean Green #3D9973 ΔE 0.023
- Viridian #1E9167 ΔE 0.029
- Jade #1FA774 ΔE 0.036
- Light Forest Green #4F9153 ΔE 0.043
- Blue Green #0F9B8E ΔE 0.048
- Sea Green #2E8B57 ΔE 0.048
- Persian Green #2A9D8F ΔE 0.050
- Fern Green #548D44 ΔE 0.059
Use #129B6E 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.