#129D83
Closest named color: Blue Green (#0F9B8E). oklch(62.3% 0.114 175), rgb(18, 157, 131).
Aa
Black text reads best on this color (6.17:1).
About this color
#129D83 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 62%, its chroma 0.114 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Green (#0F9B8E), ΔE 0.019 away. Black text reads best on it, at 6.17:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (62%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Blue Green (#0F9B8E) |
| Black text | 6.17:1 |
| White text | 3.40:1 |
Values
| HEX | #129D83 |
| RGB | rgb(18, 157, 131) |
| HSL | hsl(169, 79%, 34%) |
| OKLCH | oklch(62.3% 0.114 175) |
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 #129D83 | 3.40:1 | AA large text | Lc -66.4 | Content text, not long reading |
| Black text on #129D83 | 6.17:1 | AA | Lc 43.1 | Non-text elements, placeholder text |
| #129D83 text on white | 3.40:1 | AA large text | Lc 61.0 | Content text, not long reading |
| #129D83 text on black | 6.17:1 | AA | Lc -40.7 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#DFEEE9
oklch(93.7% 0.017 174)
-
Step 200
200
#C5E0D8
oklch(88.5% 0.031 175.8)
-
Step 300
300
#9BCDBE
oklch(80.9% 0.056 174.4)
-
Step 400
400
#5EB39D
oklch(70.7% 0.09 174.7)
-
Step 500
500 (this color)
#129D83
oklch(62.3% 0.114 175)
-
Step 600
600
#008770
oklch(55.7% 0.105 175.1)
-
Step 700
700
#00715E
oklch(49% 0.092 175.6)
-
Step 800
800
#005D4C
oklch(42.7% 0.081 174.6)
-
Step 900
900
#004E3F
oklch(37.8% 0.072 174.1)
-
Step 950
950
#042E25
oklch(27% 0.048 174.7)
#129D83 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) | #979282 | 0.119 |
| Deuteranopia (no green cones) | #878685 | 0.115 |
| Tritanopia (no blue cones) | #009F95 | 0.026 |
| Achromatopsia (no color) | #8B8B8B | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129D83
#129D83
oklch(62.3% 0.114 175)
- #BC688A
#BC688A
oklch(62.2% 0.114 355.2)
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 #129D83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Green #0F9B8E ΔE 0.019
- Persian Green #2A9D8F ΔE 0.021
- Ocean Green #3D9973 ΔE 0.025
- Sea #3C9992 ΔE 0.035
- Jade #1FA774 ΔE 0.043
- Viridian #1E9167 ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.048
- Teal Green #0A9396 ΔE 0.048
Use #129D83 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.