#136C71
Closest named color: Dark Aqua (#05696B). oklch(48.5% 0.078 200.9), rgb(19, 108, 113).
Aa
White text reads best on this color (6.15:1).
About this color
#136C71 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.078 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.014 away. White text reads best on it, at 6.15:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.41:1 |
| White text | 6.15:1 |
Values
| HEX | #136C71 |
| RGB | rgb(19, 108, 113) |
| HSL | hsl(183, 71%, 26%) |
| OKLCH | oklch(48.5% 0.078 200.9) |
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 #136C71 | 6.15:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #136C71 | 3.41:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #136C71 text on white | 6.15:1 | AA | Lc 80.3 | Fine for body text |
| #136C71 text on black | 3.41:1 | AA large text | Lc -21.5 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECED
oklch(93.6% 0.011 204.1)
-
Step 200
200
#CADEDF
oklch(88.6% 0.021 200.4)
-
Step 300
300
#A5C8CA
oklch(80.8% 0.037 200.7)
-
Step 400
400
#73ACB0
oklch(70.7% 0.06 201.5)
-
Step 500
500
#4A989C
oklch(63.2% 0.077 199.9)
-
Step 600
600
#268287
oklch(55.7% 0.083 200.4)
-
Step 700
700 (this color)
#136C71
oklch(48.5% 0.078 200.9)
-
Step 800
800
#17595D
oklch(42.6% 0.064 201)
-
Step 900
900
#1B4A4C
oklch(37.8% 0.051 199.1)
-
Step 950
950
#112B2D
oklch(27% 0.032 202.1)
#136C71 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) | #636771 | 0.078 |
| Deuteranopia (no green cones) | #565D71 | 0.073 |
| Tritanopia (no blue cones) | #00706D | 0.017 |
| Achromatopsia (no color) | #616161 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #136C71
#136C71
oklch(48.5% 0.078 200.9)
- #864D4C
#864D4C
oklch(48.7% 0.077 21.4)
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 #136C71, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.014
- Deep Turquoise #017374 ΔE 0.021
- Dark Aquamarine #017371 ΔE 0.022
- Deep Aqua #08787F ΔE 0.038
- Bluegreen #017A79 ΔE 0.042
- Petrol #005F6A ΔE 0.042
- Dark Green Blue #1F6357 ΔE 0.043
- Slate #516572 ΔE 0.056
Use #136C71 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.