#129E97
Closest named color: Persian Green (#2A9D8F). oklch(63.2% 0.107 189.2), rgb(18, 158, 151).
Aa
Black text reads best on this color (6.36:1).
About this color
#129E97 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.107 and its hue 189°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.012 away. Black text reads best on it, at 6.36:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.107) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.36:1 |
| White text | 3.30:1 |
Values
| HEX | #129E97 |
| RGB | rgb(18, 158, 151) |
| HSL | hsl(177, 80%, 35%) |
| OKLCH | oklch(63.2% 0.107 189.2) |
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 #129E97 | 3.30:1 | AA large text | Lc -65.3 | Content text, not long reading |
| Black text on #129E97 | 6.36:1 | AA | Lc 44.2 | Non-text elements, placeholder text |
| #129E97 text on white | 3.30:1 | AA large text | Lc 59.9 | Large or bold text, headings |
| #129E97 text on black | 6.36:1 | AA | Lc -41.9 | 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
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DFEDEC
oklch(93.5% 0.015 191.8)
-
Step 200
200
#C5E0DD
oklch(88.6% 0.029 188.5)
-
Step 300
300
#9ACCC7
oklch(80.9% 0.053 188.5)
-
Step 400
400
#5CB2AB
oklch(70.8% 0.084 188.5)
-
Step 500
500 (this color)
#129E97
oklch(63.2% 0.107 189.2)
-
Step 600
600
#00857F
oklch(55.6% 0.096 189.2)
-
Step 700
700
#00706B
oklch(49.2% 0.085 189.4)
-
Step 800
800
#005C57
oklch(42.8% 0.074 188.4)
-
Step 900
900
#004C49
oklch(37.6% 0.065 190.2)
-
Step 950
950
#042D2B
oklch(27% 0.043 190)
#129E97 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) | #949597 | 0.112 |
| Deuteranopia (no green cones) | #838898 | 0.106 |
| Tritanopia (no blue cones) | #00A29C | 0.012 |
| Achromatopsia (no color) | #8D8D8D | 0.107 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129E97
#129E97
oklch(63.2% 0.107 189.2)
- #C06D7C
#C06D7C
oklch(63.1% 0.106 9)
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 #129E97, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.012
- Blue Green #0F9B8E ΔE 0.014
- Sea #3C9992 ΔE 0.020
- Teal Green #0A9396 ΔE 0.034
- Grey Teal #5E9B8A ΔE 0.045
- Dusty Teal #4C9085 ΔE 0.045
- Dull Teal #5F9E8F ΔE 0.046
- Ocean Green #3D9973 ΔE 0.050
Use #129E97 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.