#129AAB
Closest named color: Teal Green (#0A9396). oklch(62.9% 0.106 208.9), rgb(18, 154, 171).
Aa
Black text reads best on this color (6.23:1).
About this color
#129AAB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.106 and its hue 209°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.034 away. Black text reads best on it, at 6.23:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 6.23:1 |
| White text | 3.36:1 |
Values
| HEX | #129AAB |
| RGB | rgb(18, 154, 171) |
| HSL | hsl(187, 81%, 37%) |
| OKLCH | oklch(62.9% 0.106 208.9) |
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 #129AAB | 3.36:1 | AA large text | Lc -66.1 | Content text, not long reading |
| Black text on #129AAB | 6.23:1 | AA | Lc 43.5 | Non-text elements, placeholder text |
| #129AAB text on white | 3.36:1 | AA large text | Lc 60.6 | Content text, not long reading |
| #129AAB text on black | 6.23:1 | AA | Lc -41.1 | 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
#F0F7F8
oklch(97.1% 0.008 207.1)
-
Step 100
100
#DFEDEF
oklch(93.6% 0.015 207.1)
-
Step 200
200
#C4DFE3
oklch(88.5% 0.029 207.4)
-
Step 300
300
#9ACAD3
oklch(80.8% 0.052 210.3)
-
Step 400
400
#5CAFBC
oklch(70.7% 0.083 208.7)
-
Step 500
500 (this color)
#129AAB
oklch(62.9% 0.106 208.9)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006D7A
oklch(49% 0.084 209.1)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#004B54
oklch(37.8% 0.065 208.5)
-
Step 950
950
#042C32
oklch(27% 0.044 209.8)
#129AAB 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) | #8B94AC | 0.100 |
| Deuteranopia (no green cones) | #7886AB | 0.092 |
| Tritanopia (no blue cones) | #00A29F | 0.034 |
| Achromatopsia (no color) | #8C8C8C | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129AAB
#129AAB
oklch(62.9% 0.106 208.9)
- #C06F64
#C06F64
oklch(62.9% 0.105 28.6)
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 #129AAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.034
- Sea #3C9992 ΔE 0.039
- Blue Green #0F9B8E ΔE 0.046
- Persian Green #2A9D8F ΔE 0.047
- Cadet Blue #5F9EA0 ΔE 0.052
- Blue NCS #118AB2 ΔE 0.052
- Teal Blue #01889F ΔE 0.054
- Dusty Teal #4C9085 ΔE 0.058
Use #129AAB 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.