#129CB2
Closest named color: Teal Green (#0A9396). oklch(63.7% 0.108 212.6), rgb(18, 156, 178).
Aa
Black text reads best on this color (6.42:1).
About this color
#129CB2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.108 and its hue 213°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.045 away. Black text reads best on it, at 6.42:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 6.42:1 |
| White text | 3.26:1 |
Values
| HEX | #129CB2 |
| RGB | rgb(18, 156, 178) |
| HSL | hsl(188, 82%, 38%) |
| OKLCH | oklch(63.7% 0.108 212.6) |
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 #129CB2 | 3.26:1 | AA large text | Lc -64.9 | Content text, not long reading |
| Black text on #129CB2 | 6.42:1 | AA | Lc 44.6 | Non-text elements, placeholder text |
| #129CB2 text on white | 3.26:1 | AA large text | Lc 59.5 | Large or bold text, headings |
| #129CB2 text on black | 6.42:1 | AA | Lc -42.2 | 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
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C4DFE5
oklch(88.6% 0.03 212.6)
-
Step 300
300
#99CAD5
oklch(80.8% 0.053 213)
-
Step 400
400
#5BAFC0
oklch(70.8% 0.085 212.5)
-
Step 500
500 (this color)
#129CB2
oklch(63.7% 0.108 212.6)
-
Step 600
600
#008295
oklch(55.7% 0.097 212.5)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#032C33
oklch(27% 0.045 211.9)
#129CB2 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) | #8B96B3 | 0.099 |
| Deuteranopia (no green cones) | #7888B2 | 0.090 |
| Tritanopia (no blue cones) | #00A5A3 | 0.040 |
| Achromatopsia (no color) | #8E8E8E | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #129CB2
#129CB2
oklch(63.7% 0.108 212.6)
- #C47160
#C47160
oklch(63.7% 0.109 32.5)
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 #129CB2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.045
- Sea #3C9992 ΔE 0.047
- Cadet Blue #5F9EA0 ΔE 0.052
- Blue NCS #118AB2 ΔE 0.054
- Persian Green #2A9D8F ΔE 0.054
- Blue Green #0F9B8E ΔE 0.055
- Turquoise Blue #06B1C4 ΔE 0.060
- Teal Blue #01889F ΔE 0.061
Use #129CB2 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.