#129F8F
Closest named color: Persian Green (#2A9D8F). oklch(63.2% 0.11 182.3), rgb(18, 159, 143).
Aa
Black text reads best on this color (6.38:1).
About this color
#129F8F is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.110 and its hue 182°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.009 away. Black text reads best on it, at 6.38:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.38:1 |
| White text | 3.29:1 |
Values
| HEX | #129F8F |
| RGB | rgb(18, 159, 143) |
| HSL | hsl(173, 80%, 35%) |
| OKLCH | oklch(63.2% 0.11 182.3) |
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 #129F8F | 3.29:1 | AA large text | Lc -65.2 | Content text, not long reading |
| Black text on #129F8F | 6.38:1 | AA | Lc 44.3 | Non-text elements, placeholder text |
| #129F8F text on white | 3.29:1 | AA large text | Lc 59.7 | Large or bold text, headings |
| #129F8F text on black | 6.38:1 | AA | Lc -42.0 | 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
#DFEDEB
oklch(93.5% 0.015 186.7)
-
Step 200
200
#C5E0DB
oklch(88.5% 0.029 183.3)
-
Step 300
300
#9ACDC3
oklch(81% 0.055 181.5)
-
Step 400
400
#5CB2A5
oklch(70.6% 0.086 182.8)
-
Step 500
500 (this color)
#129F8F
oklch(63.2% 0.11 182.3)
-
Step 600
600
#008678
oklch(55.6% 0.1 182.2)
-
Step 700
700
#007165
oklch(49.2% 0.088 182.2)
-
Step 800
800
#005C52
oklch(42.6% 0.076 182.2)
-
Step 900
900
#004D44
oklch(37.7% 0.068 181.7)
-
Step 950
950
#042E28
oklch(27.2% 0.046 180.9)
#129F8F 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) | #97958E | 0.117 |
| Deuteranopia (no green cones) | #868890 | 0.111 |
| Tritanopia (no blue cones) | #00A29A | 0.016 |
| Achromatopsia (no color) | #8E8E8E | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129F8F
#129F8F
oklch(63.2% 0.11 182.3)
- #C06C84
#C06C84
oklch(63.2% 0.11 2.4)
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 #129F8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.009
- Blue Green #0F9B8E ΔE 0.012
- Sea #3C9992 ΔE 0.025
- Ocean Green #3D9973 ΔE 0.039
- Teal Green #0A9396 ΔE 0.042
- Grey Teal #5E9B8A ΔE 0.044
- Dull Teal #5F9E8F ΔE 0.046
- Dusty Teal #4C9085 ΔE 0.047
Use #129F8F 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.