#136F66
Closest named color: Dark Aquamarine (#017371). oklch(48.9% 0.081 184.7), rgb(19, 111, 102).
Aa
White text reads best on this color (6.01:1).
About this color
#136F66 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.081 and its hue 185°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.018 away. White text reads best on it, at 6.01:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.49:1 |
| White text | 6.01:1 |
Values
| HEX | #136F66 |
| RGB | rgb(19, 111, 102) |
| HSL | hsl(174, 71%, 25%) |
| OKLCH | oklch(48.9% 0.081 184.7) |
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 #136F66 | 6.01:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #136F66 | 3.49:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #136F66 text on white | 6.01:1 | AA | Lc 79.7 | Fine for body text |
| #136F66 text on black | 3.49:1 | AA large text | Lc -22.2 | Dividers and decoration only |
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 700.
-
Step 50
50
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEB
oklch(93.5% 0.011 189.8)
-
Step 200
200
#CADEDB
oklch(88.5% 0.022 186)
-
Step 300
300
#A5C9C4
oklch(80.8% 0.039 186.1)
-
Step 400
400
#72AEA5
oklch(70.7% 0.064 184.1)
-
Step 500
500
#49998F
oklch(63% 0.08 184.6)
-
Step 600
600
#24847A
oklch(55.7% 0.088 184.8)
-
Step 700
700 (this color)
#136F66
oklch(48.9% 0.081 184.7)
-
Step 800
800
#165B54
oklch(42.8% 0.067 185.1)
-
Step 900
900
#1B4B45
oklch(37.8% 0.053 184.1)
-
Step 950
950
#112C28
oklch(27% 0.034 182.9)
#136F66 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) | #696866 | 0.087 |
| Deuteranopia (no green cones) | #5D5F67 | 0.082 |
| Tritanopia (no blue cones) | #00726C | 0.011 |
| Achromatopsia (no color) | #636363 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #136F66
#136F66
oklch(48.9% 0.081 184.7)
- #874C5A
#874C5A
oklch(49% 0.081 5.3)
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 #136F66, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.018
- Deep Turquoise #017374 ΔE 0.022
- Dark Aqua #05696B ΔE 0.024
- Dark Green Blue #1F6357 ΔE 0.038
- Bluegreen #017A79 ΔE 0.038
- Deep Aqua #08787F ΔE 0.042
- Petrol #005F6A ΔE 0.056
- Teal #008080 ΔE 0.057
Use #136F66 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.