#3186AA
Closest named color: Blue NCS (#118AB2). oklch(58.5% 0.097 229.9), rgb(49, 134, 170).
Aa
Black text reads best on this color (5.12:1).
About this color
#3186AA is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.097 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.017 away. Black text reads best on it, at 5.12:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.12:1 |
| White text | 4.10:1 |
Values
| HEX | #3186AA |
| RGB | rgb(49, 134, 170) |
| HSL | hsl(198, 55%, 43%) |
| OKLCH | oklch(58.5% 0.097 229.9) |
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 #3186AA | 4.10:1 | AA large text | Lc -73.4 | Content text, not long reading |
| Black text on #3186AA | 5.12:1 | AA | Lc 36.2 | Non-text elements, placeholder text |
| #3186AA text on white | 4.10:1 | AA large text | Lc 67.9 | Content text, not long reading |
| #3186AA 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADDE6
oklch(88.6% 0.024 227.8)
-
Step 300
300
#A5C7D8
oklch(81% 0.044 229.6)
-
Step 400
400
#72A9C4
oklch(70.7% 0.07 230.2)
-
Step 500
500
#4993B5
oklch(63% 0.089 230.3)
-
Step 600
600 (this color)
#3186AA
oklch(58.5% 0.097 229.9)
-
Step 700
700
#176A8A
oklch(49.2% 0.09 229.7)
-
Step 800
800
#175670
oklch(42.7% 0.075 230.3)
-
Step 900
900
#1B475A
oklch(37.6% 0.058 229.5)
-
Step 950
950
#112A35
oklch(27.1% 0.037 229)
#3186AA 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) | #7484AC | 0.068 |
| Deuteranopia (no green cones) | #6378A9 | 0.058 |
| Tritanopia (no blue cones) | #009092 | 0.057 |
| Achromatopsia (no color) | #7D7D7D | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3186AA
#3186AA
oklch(58.5% 0.097 229.9)
- #AA6A45
#AA6A45
oklch(58.6% 0.097 50)
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 #3186AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.017
- Teal Blue #01889F ΔE 0.027
- Steel Blue #4682B4 ΔE 0.027
- Cool Blue #4984B8 ΔE 0.032
- Off Blue #5684AE ΔE 0.033
- Cerulean #457B9D ΔE 0.034
- Dusty Blue #5A86AD ΔE 0.037
- Stormy Blue #507B9C ΔE 0.038
Use #3186AA 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.