#136E73
Closest named color: Deep Turquoise (#017374). oklch(49.2% 0.079 200.7), rgb(19, 110, 115).
Aa
White text reads best on this color (5.99:1).
About this color
#136E73 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.079 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Turquoise (#017374), ΔE 0.015 away. White text reads best on it, at 5.99:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.50:1 |
| White text | 5.99:1 |
Values
| HEX | #136E73 |
| RGB | rgb(19, 110, 115) |
| HSL | hsl(183, 72%, 26%) |
| OKLCH | oklch(49.2% 0.079 200.7) |
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 #136E73 | 5.99:1 | AA | Lc -84.8 | Fine for body text |
| Black text on #136E73 | 3.50:1 | AA large text | Lc 24.5 | Dividers and decoration only |
| #136E73 text on white | 5.99:1 | AA | Lc 79.6 | Fine for body text |
| #136E73 text on black | 3.50:1 | AA large text | Lc -22.3 | 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
#A5C8CB
oklch(80.8% 0.038 202.8)
-
Step 400
400
#72ACB0
oklch(70.6% 0.061 201.4)
-
Step 500
500
#48989D
oklch(63.2% 0.078 200.9)
-
Step 600
600
#238287
oklch(55.6% 0.085 200.3)
-
Step 700
700 (this color)
#136E73
oklch(49.2% 0.079 200.7)
-
Step 800
800
#155A5D
oklch(42.8% 0.065 199.3)
-
Step 900
900
#1A4A4D
oklch(37.8% 0.051 200.9)
-
Step 950
950
#112B2D
oklch(27% 0.032 202.1)
#136E73 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) | #656973 | 0.080 |
| Deuteranopia (no green cones) | #585F73 | 0.074 |
| Tritanopia (no blue cones) | #00736F | 0.019 |
| Achromatopsia (no color) | #636363 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #136E73
#136E73
oklch(49.2% 0.079 200.7)
- #884E4E
#884E4E
oklch(49.2% 0.078 20.3)
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 #136E73, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.015
- Dark Aquamarine #017371 ΔE 0.017
- Dark Aqua #05696B ΔE 0.019
- Deep Aqua #08787F ΔE 0.032
- Bluegreen #017A79 ΔE 0.036
- Dark Green Blue #1F6357 ΔE 0.048
- Petrol #005F6A ΔE 0.049
- Sea Blue #047495 ΔE 0.053
Use #136E73 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.