#136F63
Closest named color: Dark Aquamarine (#017371). oklch(48.8% 0.083 181.5), rgb(19, 111, 99).
Aa
White text reads best on this color (6.03:1).
About this color
#136F63 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.083 and its hue 181°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.022 away. White text reads best on it, at 6.03:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.48:1 |
| White text | 6.03:1 |
Values
| HEX | #136F63 |
| RGB | rgb(19, 111, 99) |
| HSL | hsl(172, 71%, 25%) |
| OKLCH | oklch(48.8% 0.083 181.5) |
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 #136F63 | 6.03:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #136F63 | 3.48:1 | AA large text | Lc 24.3 | Dividers and decoration only |
| #136F63 text on white | 6.03:1 | AA | Lc 79.7 | Fine for body text |
| #136F63 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E2ECEA
oklch(93.5% 0.011 182.9)
-
Step 200
200
#CADEDA
oklch(88.5% 0.022 182.5)
-
Step 300
300
#A5CAC2
oklch(81% 0.041 180.6)
-
Step 400
400
#73AEA3
oklch(70.7% 0.064 181.4)
-
Step 500
500
#499A8D
oklch(63.2% 0.082 181.7)
-
Step 600
600
#258477
oklch(55.6% 0.088 181.9)
-
Step 700
700 (this color)
#136F63
oklch(48.8% 0.083 181.5)
-
Step 800
800
#165B51
oklch(42.7% 0.069 181.1)
-
Step 900
900
#1B4B43
oklch(37.7% 0.054 180.6)
-
Step 950
950
#112C27
oklch(27% 0.035 179.9)
#136F63 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) | #6A6863 | 0.088 |
| Deuteranopia (no green cones) | #5E5F64 | 0.084 |
| Tritanopia (no blue cones) | #00716B | 0.012 |
| Achromatopsia (no color) | #636363 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #136F63
#136F63
oklch(48.8% 0.083 181.5)
- #864B5D
#864B5D
oklch(48.8% 0.083 1)
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 #136F63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.022
- Deep Turquoise #017374 ΔE 0.026
- Dark Aqua #05696B ΔE 0.027
- Dark Green Blue #1F6357 ΔE 0.037
- Bluegreen #017A79 ΔE 0.041
- Deep Aqua #08787F ΔE 0.046
- Petrol #005F6A ΔE 0.058
- Teal #008080 ΔE 0.059
Use #136F63 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.