#4165AE
Closest named color: French Blue (#436BAD). oklch(51.6% 0.123 263), rgb(65, 101, 174).
Aa
White text reads best on this color (5.67:1).
About this color
#4165AE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 52%, its chroma 0.123 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.018 away. White text reads best on it, at 5.67:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.69:1 |
| White text | 5.67:1 |
Values
| HEX | #4165AE |
| RGB | rgb(65, 101, 174) |
| HSL | hsl(220, 46%, 47%) |
| OKLCH | oklch(51.6% 0.123 263) |
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 #4165AE | 5.67:1 | AA | Lc -83.5 | Fine for body text |
| Black text on #4165AE | 3.69:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #4165AE text on white | 5.67:1 | AA | Lc 78.2 | Fine for body text |
| #4165AE text on black | 3.69:1 | AA large text | Lc -23.6 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF6
oklch(93.6% 0.017 264.5)
-
Step 200
200
#CEDAF0
oklch(88.6% 0.033 262.7)
-
Step 300
300
#ADC1E8
oklch(80.9% 0.06 263.7)
-
Step 400
400
#81A0DC
oklch(70.6% 0.095 263.1)
-
Step 500
500
#6288D3
oklch(63.2% 0.121 263)
-
Step 600
600
#4970C0
oklch(55.6% 0.132 263.2)
-
Step 700
700 (this color)
#4165AE
oklch(51.6% 0.123 263)
-
Step 800
800
#304D86
oklch(42.7% 0.101 262.6)
-
Step 900
900
#2B406C
oklch(37.7% 0.08 263.7)
-
Step 950
950
#19263F
oklch(27% 0.05 262.6)
#4165AE 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) | #446CB1 | 0.020 |
| Deuteranopia (no green cones) | #3462AC | 0.017 |
| Tritanopia (no blue cones) | #007581 | 0.103 |
| Achromatopsia (no color) | #676767 | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4165AE
#4165AE
oklch(51.6% 0.123 263)
- #856100
#856100
oklch(51.6% 0.106 83.1)
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 #4165AE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.018
- Mid Blue #276AB3 ΔE 0.024
- Dusky Blue #475F94 ΔE 0.042
- Flat Blue #3C73A8 ΔE 0.043
- Muted Blue #3B719F ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.050
- Windows Blue #3778BF ΔE 0.054
- Denim #3B638C ΔE 0.055
Use #4165AE 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.