#136A74
Closest named color: Dark Aqua (#05696B). oklch(48.1% 0.077 207), rgb(19, 106, 116).
Aa
White text reads best on this color (6.28:1).
About this color
#136A74 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 48%, its chroma 0.077 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.016 away. White text reads best on it, at 6.28:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.34:1 |
| White text | 6.28:1 |
Values
| HEX | #136A74 |
| RGB | rgb(19, 106, 116) |
| HSL | hsl(186, 72%, 26%) |
| OKLCH | oklch(48.1% 0.077 207) |
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 #136A74 | 6.28:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #136A74 | 3.34:1 | AA large text | Lc 23.1 | Dividers and decoration only |
| #136A74 text on white | 6.28:1 | AA | Lc 80.9 | Fine for body text |
| #136A74 text on black | 3.34:1 | AA large text | Lc -20.9 | 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
#CADDE0
oklch(88.4% 0.021 208.1)
-
Step 300
300
#A5C8CD
oklch(80.9% 0.038 207)
-
Step 400
400
#73ACB3
oklch(70.8% 0.06 205.6)
-
Step 500
500
#4B97A1
oklch(63.2% 0.076 206.7)
-
Step 600
600
#27818C
oklch(55.6% 0.083 206.9)
-
Step 700
700 (this color)
#136A74
oklch(48.1% 0.077 207)
-
Step 800
800
#185961
oklch(42.8% 0.064 207)
-
Step 900
900
#1C494F
oklch(37.7% 0.05 207.2)
-
Step 950
950
#122B2E
oklch(27.1% 0.031 205.7)
#136A74 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) | #606575 | 0.075 |
| Deuteranopia (no green cones) | #535C74 | 0.068 |
| Tritanopia (no blue cones) | #006F6D | 0.023 |
| Achromatopsia (no color) | #606060 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #136A74
#136A74
oklch(48.1% 0.077 207)
- #844C46
#844C46
oklch(48.1% 0.077 26.8)
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 #136A74, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.016
- Deep Turquoise #017374 ΔE 0.028
- Dark Aquamarine #017371 ΔE 0.030
- Petrol #005F6A ΔE 0.037
- Deep Aqua #08787F ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.046
- Bluegreen #017A79 ΔE 0.049
- Slate #516572 ΔE 0.054
Use #136A74 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.