#3986A5
Closest named color: Blue NCS (#118AB2). oklch(58.5% 0.089 227.8), rgb(57, 134, 165).
Aa
Black text reads best on this color (5.12:1).
About this color
#3986A5 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.089 and its hue 228°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.025 away. Black text reads best on it, at 5.12:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.12:1 |
| White text | 4.09:1 |
Values
| HEX | #3986A5 |
| RGB | rgb(57, 134, 165) |
| HSL | hsl(197, 49%, 44%) |
| OKLCH | oklch(58.5% 0.089 227.8) |
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 #3986A5 | 4.09:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #3986A5 | 5.12:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #3986A5 text on white | 4.09:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #3986A5 text on black | 5.12:1 | AA | Lc -33.8 | Non-text elements, placeholder text |
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 600.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECF0
oklch(93.7% 0.012 223.5)
-
Step 200
200
#CBDCE5
oklch(88.4% 0.022 230.6)
-
Step 300
300
#A7C6D5
oklch(80.9% 0.04 228.7)
-
Step 400
400
#76A9C0
oklch(70.7% 0.064 227.8)
-
Step 500
500
#4F93B0
oklch(63% 0.082 227.9)
-
Step 600
600 (this color)
#3986A5
oklch(58.5% 0.089 227.8)
-
Step 700
700
#216985
oklch(49% 0.082 228.3)
-
Step 800
800
#1E566C
oklch(42.7% 0.068 227.8)
-
Step 900
900
#1F4758
oklch(37.7% 0.053 228.4)
-
Step 950
950
#132A33
oklch(27.1% 0.033 225.6)
#3986A5 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) | #7684A7 | 0.065 |
| Deuteranopia (no green cones) | #6779A5 | 0.056 |
| Tritanopia (no blue cones) | #008F90 | 0.054 |
| Achromatopsia (no color) | #7D7D7D | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3986A5
#3986A5
oklch(58.5% 0.089 227.8)
- #A76B4C
#A76B4C
oklch(58.5% 0.089 47.8)
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 #3986A5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.025
- Teal Blue #01889F ΔE 0.026
- Cerulean #457B9D ΔE 0.031
- Steel Blue #4682B4 ΔE 0.031
- Off Blue #5684AE ΔE 0.032
- Stormy Blue #507B9C ΔE 0.034
- Dusty Blue #5A86AD ΔE 0.034
- Cool Blue #4984B8 ΔE 0.036
Use #3986A5 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.