#2186DC
Closest named color: Water Blue (#0E87CC). oklch(60.8% 0.157 249.8), rgb(33, 134, 220).
Aa
Black text reads best on this color (5.50:1).
About this color
#2186DC is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.157 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.027 away. Black text reads best on it, at 5.50:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.157) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.50:1 |
| White text | 3.81:1 |
Values
| HEX | #2186DC |
| RGB | rgb(33, 134, 220) |
| HSL | hsl(208, 74%, 50%) |
| OKLCH | oklch(60.8% 0.157 249.8) |
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 #2186DC | 3.81:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #2186DC | 5.50:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #2186DC text on white | 3.81:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #2186DC text on black | 5.50:1 | AA | Lc -36.5 | 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 500.
-
Step 50
50
#F0F6FC
oklch(97% 0.01 247.9)
-
Step 100
100
#DFEBF9
oklch(93.5% 0.023 252.2)
-
Step 200
200
#C4DCF5
oklch(88.5% 0.043 249.4)
-
Step 300
300
#9BC5F1
oklch(80.9% 0.077 250)
-
Step 400
400
#61A6EA
oklch(70.8% 0.122 249.6)
-
Step 500
500 (this color)
#2186DC
oklch(60.8% 0.157 249.8)
-
Step 600
600
#0076CA
oklch(55.7% 0.156 249.7)
-
Step 700
700
#0063AB
oklch(49.2% 0.138 249.7)
-
Step 800
800
#00518D
oklch(42.7% 0.12 249.5)
-
Step 900
900
#054375
oklch(37.6% 0.103 249.9)
-
Step 950
950
#082845
oklch(27.1% 0.065 249.8)
#2186DC 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) | #5C8BDF | 0.049 |
| Deuteranopia (no green cones) | #3E7BDA | 0.031 |
| Tritanopia (no blue cones) | #009BA6 | 0.115 |
| Achromatopsia (no color) | #838383 | 0.157 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2186DC
#2186DC
oklch(60.8% 0.157 249.8)
- #B47200
#B47200
oklch(60.8% 0.132 69.9)
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 #2186DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.027
- Dark Sky Blue #448EE4 ΔE 0.035
- Windows Blue #3778BF ΔE 0.052
- Dodger Blue #1E90FF ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.057
- Cool Blue #4984B8 ΔE 0.058
- Soft Blue #6488EA ΔE 0.060
- Steel Blue #4682B4 ΔE 0.062
Use #2186DC 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.