#2185DA
Closest named color: Water Blue (#0E87CC). oklch(60.5% 0.156 249.8), rgb(33, 133, 218).
Aa
Black text reads best on this color (5.43:1).
About this color
#2185DA is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.156 and its hue 250°. Its hue sits on the cool side of the wheel. The nearest named color is Water Blue (#0E87CC), ΔE 0.024 away. Black text reads best on it, at 5.43:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Water Blue (#0E87CC) |
| Black text | 5.43:1 |
| White text | 3.86:1 |
Values
| HEX | #2185DA |
| RGB | rgb(33, 133, 218) |
| HSL | hsl(208, 74%, 49%) |
| OKLCH | oklch(60.5% 0.156 249.8) |
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 #2185DA | 3.86:1 | AA large text | Lc -71.1 | Content text, not long reading |
| Black text on #2185DA | 5.43:1 | AA | Lc 38.5 | Non-text elements, placeholder text |
| #2185DA text on white | 3.86:1 | AA large text | Lc 65.6 | Content text, not long reading |
| #2185DA text on black | 5.43:1 | AA | Lc -36.1 | 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
#DFEBF8
oklch(93.5% 0.022 250.2)
-
Step 200
200
#C5DCF5
oklch(88.5% 0.042 250.5)
-
Step 300
300
#9BC5F1
oklch(80.9% 0.077 250)
-
Step 400
400
#61A6E9
oklch(70.8% 0.121 249.2)
-
Step 500
500 (this color)
#2185DA
oklch(60.5% 0.156 249.8)
-
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
#064375
oklch(37.7% 0.102 250.1)
-
Step 950
950
#082844
oklch(27% 0.064 249)
#2185DA 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) | #5B8ADD | 0.048 |
| Deuteranopia (no green cones) | #3E7AD8 | 0.031 |
| Tritanopia (no blue cones) | #0099A5 | 0.112 |
| Achromatopsia (no color) | #828282 | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2185DA
#2185DA
oklch(60.5% 0.156 249.8)
- #B37100
#B37100
oklch(60.5% 0.131 69.6)
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 #2185DA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Water Blue #0E87CC ΔE 0.024
- Dark Sky Blue #448EE4 ΔE 0.038
- Windows Blue #3778BF ΔE 0.049
- Cool Blue #4984B8 ΔE 0.056
- Dodger Blue #1E90FF ΔE 0.059
- Steel Blue #4682B4 ΔE 0.060
- Chefchaouen Blue #4895EF ΔE 0.060
- Soft Blue #6488EA ΔE 0.062
Use #2185DA 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.