#327FC0
Closest named color: Windows Blue (#3778BF). oklch(58% 0.125 247.6), rgb(50, 127, 192).
Aa
Black text reads best on this color (4.93:1).
About this color
#327FC0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 58%, its chroma 0.125 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.019 away. Black text reads best on it, at 4.93:1.
| Hue family | Blues |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.93:1 |
| White text | 4.25:1 |
Values
| HEX | #327FC0 |
| RGB | rgb(50, 127, 192) |
| HSL | hsl(207, 59%, 47%) |
| OKLCH | oklch(58% 0.125 247.6) |
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 #327FC0 | 4.25:1 | AA large text | Lc -74.6 | Content text, not long reading |
| Black text on #327FC0 | 4.93:1 | AA | Lc 35.0 | Non-text elements, placeholder text |
| #327FC0 text on white | 4.25:1 | AA large text | Lc 69.1 | Content text, not long reading |
| #327FC0 text on black | 4.93:1 | AA | Lc -32.6 | 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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#C9DCED
oklch(88.6% 0.031 245.1)
-
Step 300
300
#A4C5E4
oklch(81% 0.057 246.9)
-
Step 400
400
#72A6D6
oklch(70.7% 0.09 247.2)
-
Step 500
500
#4B8FCB
oklch(63.2% 0.114 247.4)
-
Step 600
600 (this color)
#327FC0
oklch(58% 0.125 247.6)
-
Step 700
700
#1B649F
oklch(49% 0.117 248)
-
Step 800
800
#1A5281
oklch(42.7% 0.097 248)
-
Step 900
900
#1C4467
oklch(37.6% 0.075 247.8)
-
Step 950
950
#12283C
oklch(26.9% 0.047 247.8)
#327FC0 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) | #6182C3 | 0.047 |
| Deuteranopia (no green cones) | #4D75BF | 0.033 |
| Tritanopia (no blue cones) | #008F96 | 0.093 |
| Achromatopsia (no color) | #7B7B7B | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #327FC0
#327FC0
oklch(58% 0.125 247.6)
- #AA6A09
#AA6A09
oklch(58.1% 0.125 68)
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 #327FC0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.019
- Water Blue #0E87CC ΔE 0.027
- Steel Blue #4682B4 ΔE 0.027
- Cool Blue #4984B8 ΔE 0.029
- Nice Blue #107AB0 ΔE 0.034
- Blue NCS #118AB2 ΔE 0.044
- Flat Blue #3C73A8 ΔE 0.044
- Off Blue #5684AE ΔE 0.047
Use #327FC0 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.