#1686BB
Closest named color: Blue NCS (#118AB2). oklch(58.8% 0.122 236.6), rgb(22, 134, 187).
Aa
Black text reads best on this color (5.16:1).
About this color
#1686BB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.122 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Blue NCS (#118AB2), ΔE 0.021 away. Black text reads best on it, at 5.16:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Blue NCS (#118AB2) |
| Black text | 5.16:1 |
| White text | 4.06:1 |
Values
| HEX | #1686BB |
| RGB | rgb(22, 134, 187) |
| HSL | hsl(199, 79%, 41%) |
| OKLCH | oklch(58.8% 0.122 236.6) |
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 #1686BB | 4.06:1 | AA large text | Lc -72.9 | Content text, not long reading |
| Black text on #1686BB | 5.16:1 | AA | Lc 36.7 | Non-text elements, placeholder text |
| #1686BB text on white | 4.06:1 | AA large text | Lc 67.4 | Content text, not long reading |
| #1686BB text on black | 5.16:1 | AA | Lc -34.3 | 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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C7DDEB
oklch(88.6% 0.03 235.7)
-
Step 300
300
#A0C7E0
oklch(81% 0.055 236.5)
-
Step 400
400
#69A9D0
oklch(70.7% 0.087 236.6)
-
Step 500
500
#3993C4
oklch(63.1% 0.112 236.4)
-
Step 600
600 (this color)
#1686BB
oklch(58.8% 0.122 236.6)
-
Step 700
700
#006895
oklch(49% 0.107 237)
-
Step 800
800
#00557B
oklch(42.6% 0.093 237.2)
-
Step 900
900
#104763
oklch(37.8% 0.073 236.2)
-
Step 950
950
#0C2A3A
oklch(27.1% 0.046 235.5)
#1686BB 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) | #6C86BD | 0.069 |
| Deuteranopia (no green cones) | #5777BA | 0.057 |
| Tritanopia (no blue cones) | #009498 | 0.078 |
| Achromatopsia (no color) | #7E7E7E | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1686BB
#1686BB
oklch(58.8% 0.122 236.6)
- #B26729
#B26729
oklch(58.8% 0.122 56.4)
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 #1686BB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue NCS #118AB2 ΔE 0.021
- Water Blue #0E87CC ΔE 0.026
- Steel Blue #4682B4 ΔE 0.028
- Cool Blue #4984B8 ΔE 0.030
- Nice Blue #107AB0 ΔE 0.036
- Windows Blue #3778BF ΔE 0.043
- Off Blue #5684AE ΔE 0.045
- Teal Blue #01889F ΔE 0.047
Use #1686BB 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.