#136D78
Closest named color: Deep Turquoise (#017374). oklch(49.1% 0.079 207.8), rgb(19, 109, 120).
Aa
White text reads best on this color (6.02:1).
About this color
#136D78 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.079 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Turquoise (#017374), ΔE 0.022 away. White text reads best on it, at 6.02:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Deep Turquoise (#017374) |
| Black text | 3.48:1 |
| White text | 6.02:1 |
Values
| HEX | #136D78 |
| RGB | rgb(19, 109, 120) |
| HSL | hsl(187, 73%, 27%) |
| OKLCH | oklch(49.1% 0.079 207.8) |
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 #136D78 | 6.02:1 | AA | Lc -84.9 | Fine for body text |
| Black text on #136D78 | 3.48:1 | AA large text | Lc 24.4 | Dividers and decoration only |
| #136D78 text on white | 6.02:1 | AA | Lc 79.7 | Fine for body text |
| #136D78 text on black | 3.48:1 | AA large text | Lc -22.1 | 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
#E2ECEE
oklch(93.6% 0.011 211)
-
Step 200
200
#CADDE0
oklch(88.4% 0.021 208.1)
-
Step 300
300
#A5C8CD
oklch(80.9% 0.038 207)
-
Step 400
400
#72ACB4
oklch(70.7% 0.061 206.8)
-
Step 500
500
#4897A2
oklch(63.1% 0.079 207.5)
-
Step 600
600
#23818D
oklch(55.6% 0.085 207.6)
-
Step 700
700 (this color)
#136D78
oklch(49.1% 0.079 207.8)
-
Step 800
800
#155962
oklch(42.8% 0.066 208.1)
-
Step 900
900
#1A4950
oklch(37.7% 0.052 208.7)
-
Step 950
950
#112B2F
oklch(27% 0.033 208.6)
#136D78 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) | #636879 | 0.077 |
| Deuteranopia (no green cones) | #555F78 | 0.069 |
| Tritanopia (no blue cones) | #007270 | 0.024 |
| Achromatopsia (no color) | #636363 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #136D78
#136D78
oklch(49.1% 0.079 207.8)
- #884E47
#884E47
oklch(49% 0.08 27.6)
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 #136D78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Turquoise #017374 ΔE 0.022
- Dark Aqua #05696B ΔE 0.023
- Dark Aquamarine #017371 ΔE 0.025
- Deep Aqua #08787F ΔE 0.033
- Bluegreen #017A79 ΔE 0.040
- Sea Blue #047495 ΔE 0.046
- Petrol #005F6A ΔE 0.047
- Ocean #017B92 ΔE 0.051
Use #136D78 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.