#13636F
Closest named color: Petrol (#005F6A). oklch(46% 0.074 210.3), rgb(19, 99, 111).
Aa
White text reads best on this color (6.90:1).
About this color
#13636F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 46%, its chroma 0.074 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.016 away. White text reads best on it, at 6.90:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 3.04:1 |
| White text | 6.90:1 |
Values
| HEX | #13636F |
| RGB | rgb(19, 99, 111) |
| HSL | hsl(188, 71%, 25%) |
| OKLCH | oklch(46% 0.074 210.3) |
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 #13636F | 6.90:1 | AA | Lc -88.5 | Fine for body text |
| Black text on #13636F | 3.04:1 | AA large text | Lc 20.5 | Dividers and decoration only |
| #13636F text on white | 6.90:1 | AA | Lc 83.5 | Fine for body text |
| #13636F text on black | 3.04:1 | AA large text | Lc -18.4 | 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
#CBDDE0
oklch(88.5% 0.02 208.8)
-
Step 300
300
#A7C7CD
oklch(80.8% 0.035 210.2)
-
Step 400
400
#76ABB5
oklch(70.8% 0.058 210.6)
-
Step 500
500
#4F96A2
oklch(63.2% 0.073 209.7)
-
Step 600
600
#2F808D
oklch(55.6% 0.079 209.9)
-
Step 700
700 (this color)
#13636F
oklch(46% 0.074 210.3)
-
Step 800
800
#1D5862
oklch(42.7% 0.062 210.8)
-
Step 900
900
#1F4850
oklch(37.6% 0.048 212.1)
-
Step 950
950
#132A2F
oklch(26.9% 0.03 213.4)
#13636F 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) | #595F70 | 0.070 |
| Deuteranopia (no green cones) | #4D566F | 0.064 |
| Tritanopia (no blue cones) | #006867 | 0.024 |
| Achromatopsia (no color) | #5A5A5A | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #13636F
#13636F
oklch(46% 0.074 210.3)
- #7C483F
#7C483F
oklch(46.1% 0.073 30.6)
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 #13636F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.016
- Dark Aqua #05696B ΔE 0.022
- Dark Green Blue #1F6357 ΔE 0.040
- Deep Turquoise #017374 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.050
- Dark Aquamarine #017371 ΔE 0.050
- Deep Teal #00555A ΔE 0.052
- Slate #516572 ΔE 0.059
Use #13636F 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.