#327ECD
Closest named color: Windows Blue (#3778BF). oklch(58.5% 0.142 252.3), rgb(50, 126, 205).
Aa
Black text reads best on this color (5.00:1).
About this color
#327ECD is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.142 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.024 away. Black text reads best on it, at 5.00:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 5.00:1 |
| White text | 4.19:1 |
Values
| HEX | #327ECD |
| RGB | rgb(50, 126, 205) |
| HSL | hsl(211, 61%, 50%) |
| OKLCH | oklch(58.5% 0.142 252.3) |
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 #327ECD | 4.19:1 | AA large text | Lc -74.1 | Content text, not long reading |
| Black text on #327ECD | 5.00:1 | AA | Lc 35.5 | Non-text elements, placeholder text |
| #327ECD text on white | 4.19:1 | AA large text | Lc 68.6 | Content text, not long reading |
| #327ECD text on black | 5.00:1 | AA | Lc -33.1 | 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 600.
-
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
#C9DBF1
oklch(88.5% 0.036 253.5)
-
Step 300
300
#A3C4EA
oklch(80.9% 0.065 252.2)
-
Step 400
400
#71A4DF
oklch(70.6% 0.103 252.8)
-
Step 500
500
#498CD6
oklch(63% 0.131 252.6)
-
Step 600
600 (this color)
#327ECD
oklch(58.5% 0.142 252.3)
-
Step 700
700
#1A62A9
oklch(49.2% 0.133 252.4)
-
Step 800
800
#195089
oklch(42.7% 0.11 252.7)
-
Step 900
900
#1B436D
oklch(37.7% 0.085 252)
-
Step 950
950
#112740
oklch(26.9% 0.055 253.1)
#327ECD 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) | #5983D0 | 0.040 |
| Deuteranopia (no green cones) | #4175CB | 0.025 |
| Tritanopia (no blue cones) | #00919B | 0.108 |
| Achromatopsia (no color) | #7C7C7C | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #327ECD
#327ECD
oklch(58.5% 0.142 252.3)
- #A86E00
#A86E00
oklch(58.5% 0.125 72.9)
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 #327ECD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.024
- Water Blue #0E87CC ΔE 0.027
- Cool Blue #4984B8 ΔE 0.044
- Steel Blue #4682B4 ΔE 0.045
- Nice Blue #107AB0 ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.056
- Flat Blue #3C73A8 ΔE 0.059
- Blue NCS #118AB2 ΔE 0.062
Use #327ECD 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.