#136F8B
Closest named color: Sea Blue (#047495). oklch(50.5% 0.09 224.6), rgb(19, 111, 139).
Aa
White text reads best on this color (5.71:1).
About this color
#136F8B is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 51%, its chroma 0.090 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.019 away. White text reads best on it, at 5.71:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.67:1 |
| White text | 5.71:1 |
Values
| HEX | #136F8B |
| RGB | rgb(19, 111, 139) |
| HSL | hsl(194, 76%, 31%) |
| OKLCH | oklch(50.5% 0.09 224.6) |
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 #136F8B | 5.71:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #136F8B | 3.67:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #136F8B text on white | 5.71:1 | AA | Lc 78.2 | Fine for body text |
| #136F8B text on black | 3.67:1 | AA large text | Lc -23.6 | 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
#C9DDE5
oklch(88.5% 0.024 223.7)
-
Step 300
300
#A3C7D6
oklch(80.8% 0.044 225.1)
-
Step 400
400
#6FAAC1
oklch(70.6% 0.07 224.6)
-
Step 500
500
#4595B2
oklch(63.2% 0.089 224.7)
-
Step 600
600
#1D7F9E
oklch(55.7% 0.097 224.7)
-
Step 700
700 (this color)
#136F8B
oklch(50.5% 0.09 224.6)
-
Step 800
800
#10576D
oklch(42.6% 0.074 224.4)
-
Step 900
900
#184859
oklch(37.7% 0.058 225.1)
-
Step 950
950
#102A34
oklch(27% 0.037 225.8)
#136F8B 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) | #5F6C8C | 0.069 |
| Deuteranopia (no green cones) | #50628B | 0.060 |
| Tritanopia (no blue cones) | #007778 | 0.046 |
| Achromatopsia (no color) | #666666 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #136F8B
#136F8B
oklch(50.5% 0.09 224.6)
- #8F5337
#8F5337
oklch(50.6% 0.09 45.2)
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 #136F8B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.019
- Ocean Blue #03719C ΔE 0.027
- Peacock Blue #016795 ΔE 0.034
- Ocean #017B92 ΔE 0.035
- Deep Aqua #08787F ΔE 0.039
- Denim #3B638C ΔE 0.042
- Deep Turquoise #017374 ΔE 0.044
- Muted Blue #3B719F ΔE 0.044
Use #136F8B 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.