#4165A2
Closest named color: French Blue (#436BAD). oklch(50.9% 0.106 260.4), rgb(65, 101, 162).
Aa
White text reads best on this color (5.82:1).
About this color
#4165A2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.106 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.023 away. White text reads best on it, at 5.82:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.60:1 |
| White text | 5.82:1 |
Values
| HEX | #4165A2 |
| RGB | rgb(65, 101, 162) |
| HSL | hsl(218, 43%, 45%) |
| OKLCH | oklch(50.9% 0.106 260.4) |
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 #4165A2 | 5.82:1 | AA | Lc -84.2 | Fine for body text |
| Black text on #4165A2 | 3.60:1 | AA large text | Lc 25.1 | Dividers and decoration only |
| #4165A2 text on white | 5.82:1 | AA | Lc 78.9 | Fine for body text |
| #4165A2 text on black | 3.60:1 | AA large text | Lc -22.9 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAED
oklch(88.5% 0.029 259.6)
-
Step 300
300
#AEC2E2
oklch(81% 0.05 259.8)
-
Step 400
400
#83A2D4
oklch(70.8% 0.081 259.8)
-
Step 500
500
#648AC9
oklch(63.2% 0.105 260.2)
-
Step 600
600
#4B73B6
oklch(55.7% 0.114 260.2)
-
Step 700
700 (this color)
#4165A2
oklch(50.9% 0.106 260.4)
-
Step 800
800
#324E7F
oklch(42.6% 0.089 260.9)
-
Step 900
900
#2C4166
oklch(37.6% 0.069 261.2)
-
Step 950
950
#1A263C
oklch(26.9% 0.045 261.9)
#4165A2 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) | #4B6AA4 | 0.020 |
| Deuteranopia (no green cones) | #3F61A1 | 0.012 |
| Tritanopia (no blue cones) | #00737C | 0.092 |
| Achromatopsia (no color) | #656565 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4165A2
#4165A2
oklch(50.9% 0.106 260.4)
- #855E00
#855E00
oklch(51% 0.105 80.3)
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 #4165A2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.023
- Dusky Blue #475F94 ΔE 0.025
- Mid Blue #276AB3 ΔE 0.033
- Muted Blue #3B719F ΔE 0.036
- Denim #3B638C ΔE 0.036
- Denim Blue #3B5B92 ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.039
- Peacock Blue #016795 ΔE 0.047
Use #4165A2 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.