#13728A
Closest named color: Sea Blue (#047495). oklch(51.2% 0.089 220.4), rgb(19, 114, 138).
Aa
White text reads best on this color (5.52:1).
About this color
#13728A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.089 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.017 away. White text reads best on it, at 5.52:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.80:1 |
| White text | 5.52:1 |
Values
| HEX | #13728A |
| RGB | rgb(19, 114, 138) |
| HSL | hsl(192, 76%, 31%) |
| OKLCH | oklch(51.2% 0.089 220.4) |
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 #13728A | 5.52:1 | AA | Lc -82.5 | Fine for body text |
| Black text on #13728A | 3.80:1 | AA large text | Lc 26.9 | Dividers and decoration only |
| #13728A text on white | 5.52:1 | AA | Lc 77.2 | Fine for body text |
| #13728A text on black | 3.80:1 | AA large text | Lc -24.6 | 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
#F1F6F8
oklch(97% 0.006 223.5)
-
Step 100
100
#E1ECF0
oklch(93.6% 0.013 221.4)
-
Step 200
200
#C9DDE4
oklch(88.5% 0.023 220.8)
-
Step 300
300
#A3C8D4
oklch(81% 0.043 219.5)
-
Step 400
400
#6FABBF
oklch(70.8% 0.069 221)
-
Step 500
500
#4396AE
oklch(63.2% 0.087 219.7)
-
Step 600
600
#19809A
oklch(55.7% 0.095 220.1)
-
Step 700
700 (this color)
#13728A
oklch(51.2% 0.089 220.4)
-
Step 800
800
#0D586B
oklch(42.7% 0.074 220.3)
-
Step 900
900
#174857
oklch(37.6% 0.057 221.9)
-
Step 950
950
#0F2B33
oklch(27.1% 0.037 219.3)
#13728A 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) | #636F8B | 0.072 |
| Deuteranopia (no green cones) | #54648A | 0.064 |
| Tritanopia (no blue cones) | #007A7A | 0.041 |
| Achromatopsia (no color) | #696969 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13728A
#13728A
oklch(51.2% 0.089 220.4)
- #91543E
#91543E
oklch(51.1% 0.088 40.5)
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 #13728A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.017
- Ocean #017B92 ΔE 0.027
- Deep Aqua #08787F ΔE 0.030
- Ocean Blue #03719C ΔE 0.030
- Deep Turquoise #017374 ΔE 0.038
- Bluegreen #017A79 ΔE 0.043
- Peacock Blue #016795 ΔE 0.043
- Dark Aquamarine #017371 ΔE 0.043
Use #13728A 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.