#129F8D
Closest named color: Persian Green (#2A9D8F). oklch(63.1% 0.111 180.8), rgb(18, 159, 141).
Aa
Black text reads best on this color (6.36:1).
About this color
#129F8D is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.111 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.011 away. Black text reads best on it, at 6.36:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.36:1 |
| White text | 3.29:1 |
Values
| HEX | #129F8D |
| RGB | rgb(18, 159, 141) |
| HSL | hsl(172, 80%, 35%) |
| OKLCH | oklch(63.1% 0.111 180.8) |
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 #129F8D | 3.29:1 | AA large text | Lc -65.2 | Content text, not long reading |
| Black text on #129F8D | 6.36:1 | AA | Lc 44.3 | Non-text elements, placeholder text |
| #129F8D text on white | 3.29:1 | AA large text | Lc 59.8 | Large or bold text, headings |
| #129F8D 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#DFEDEA
oklch(93.5% 0.015 181.8)
-
Step 200
200
#C5E0DA
oklch(88.5% 0.03 180.7)
-
Step 300
300
#9ACDC2
oklch(80.9% 0.055 180.1)
-
Step 400
400
#5DB3A3
oklch(70.8% 0.087 180.1)
-
Step 500
500 (this color)
#129F8D
oklch(63.1% 0.111 180.8)
-
Step 600
600
#008676
oklch(55.6% 0.1 180.5)
-
Step 700
700
#007163
oklch(49.2% 0.089 180.3)
-
Step 800
800
#005C51
oklch(42.6% 0.077 181.1)
-
Step 900
900
#004D43
oklch(37.7% 0.068 180.3)
-
Step 950
950
#042E28
oklch(27.2% 0.046 180.9)
#129F8D 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) | #97958C | 0.117 |
| Deuteranopia (no green cones) | #86888F | 0.112 |
| Tritanopia (no blue cones) | #00A299 | 0.017 |
| Achromatopsia (no color) | #8E8E8E | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129F8D
#129F8D
oklch(63.1% 0.111 180.8)
- #C06B86
#C06B86
oklch(63.1% 0.112 0.5)
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 #129F8D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.011
- Blue Green #0F9B8E ΔE 0.013
- Sea #3C9992 ΔE 0.027
- Ocean Green #3D9973 ΔE 0.037
- Teal Green #0A9396 ΔE 0.043
- Grey Teal #5E9B8A ΔE 0.045
- Dull Teal #5F9E8F ΔE 0.047
- Dusty Teal #4C9085 ΔE 0.047
Use #129F8D 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.