#13666A
Closest named color: Dark Aqua (#05696B). oklch(46.6% 0.074 200), rgb(19, 102, 106).
Aa
White text reads best on this color (6.69:1).
About this color
#13666A is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 47%, its chroma 0.074 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.009 away. White text reads best on it, at 6.69:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.13:1 |
| White text | 6.69:1 |
Values
| HEX | #13666A |
| RGB | rgb(19, 102, 106) |
| HSL | hsl(183, 70%, 25%) |
| OKLCH | oklch(46.6% 0.074 200) |
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 #13666A | 6.69:1 | AA | Lc -87.7 | Fine for body text |
| Black text on #13666A | 3.13:1 | AA large text | Lc 21.4 | Dividers and decoration only |
| #13666A text on white | 6.69:1 | AA | Lc 82.7 | Fine for body text |
| #13666A text on black | 3.13:1 | AA large text | Lc -19.2 | 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
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDE
oklch(88.4% 0.019 200.8)
-
Step 300
300
#A7C8CA
oklch(80.9% 0.035 201)
-
Step 400
400
#75ACAF
oklch(70.7% 0.058 200.3)
-
Step 500
500
#4E979B
oklch(63.1% 0.073 200.2)
-
Step 600
600
#2D8186
oklch(55.6% 0.079 200.7)
-
Step 700
700 (this color)
#13666A
oklch(46.6% 0.074 200)
-
Step 800
800
#1C595C
oklch(42.7% 0.061 199.8)
-
Step 900
900
#1E494B
oklch(37.6% 0.047 199.4)
-
Step 950
950
#132B2C
oklch(27% 0.03 199.1)
#13666A 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) | #5E616A | 0.075 |
| Deuteranopia (no green cones) | #52586A | 0.070 |
| Tritanopia (no blue cones) | #006A67 | 0.016 |
| Achromatopsia (no color) | #5C5C5C | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13666A
#13666A
oklch(46.6% 0.074 200)
- #7E4848
#7E4848
oklch(46.6% 0.074 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 #13666A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.009
- Petrol #005F6A ΔE 0.025
- Dark Green Blue #1F6357 ΔE 0.029
- Dark Aquamarine #017371 ΔE 0.039
- Deep Turquoise #017374 ΔE 0.039
- Deep Teal #00555A ΔE 0.057
- Deep Aqua #08787F ΔE 0.057
- Slate #516572 ΔE 0.059
Use #13666A 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.