#186BAD
Closest named color: Mid Blue (#276AB3). oklch(51.5% 0.128 248.3), rgb(24, 107, 173).
Aa
White text reads best on this color (5.60:1).
About this color
#186BAD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.128 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Mid Blue (#276AB3), ΔE 0.014 away. White text reads best on it, at 5.60:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Mid Blue (#276AB3) |
| Black text | 3.74:1 |
| White text | 5.60:1 |
Values
| HEX | #186BAD |
| RGB | rgb(24, 107, 173) |
| HSL | hsl(207, 76%, 39%) |
| OKLCH | oklch(51.5% 0.128 248.3) |
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 #186BAD | 5.60:1 | AA | Lc -82.9 | Fine for body text |
| Black text on #186BAD | 3.74:1 | AA large text | Lc 26.5 | Dividers and decoration only |
| #186BAD text on white | 5.60:1 | AA | Lc 77.6 | Fine for body text |
| #186BAD text on black | 3.74:1 | AA large text | Lc -24.2 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E1EBF6
oklch(93.6% 0.018 250.6)
-
Step 200
200
#C8DCEF
oklch(88.5% 0.034 246.8)
-
Step 300
300
#A2C5E8
oklch(81% 0.062 248.6)
-
Step 400
400
#6DA6DC
oklch(70.7% 0.1 248.1)
-
Step 500
500
#438ED2
oklch(63% 0.127 248.5)
-
Step 600
600
#1D77BF
oklch(55.5% 0.138 248.3)
-
Step 700
700 (this color)
#186BAD
oklch(51.5% 0.128 248.3)
-
Step 800
800
#105286
oklch(42.8% 0.106 248.2)
-
Step 900
900
#17446B
oklch(37.7% 0.083 248.3)
-
Step 950
950
#0F283F
oklch(27% 0.053 248.7)
#186BAD 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) | #4B6FB0 | 0.044 |
| Deuteranopia (no green cones) | #3462AC | 0.028 |
| Tritanopia (no blue cones) | #007B83 | 0.093 |
| Achromatopsia (no color) | #686868 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #186BAD
#186BAD
oklch(51.5% 0.128 248.3)
- #915900
#915900
oklch(51.5% 0.113 68.2)
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 #186BAD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Mid Blue #276AB3 ΔE 0.014
- French Blue #436BAD ΔE 0.032
- Ocean Blue #03719C ΔE 0.036
- Flat Blue #3C73A8 ΔE 0.038
- Muted Blue #3B719F ΔE 0.040
- Peacock Blue #016795 ΔE 0.041
- Nice Blue #107AB0 ΔE 0.043
- Windows Blue #3778BF ΔE 0.051
Use #186BAD 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.