#4B6CA5
Closest named color: French Blue (#436BAD). oklch(53.2% 0.098 260.8), rgb(75, 108, 165).
Aa
White text reads best on this color (5.26:1).
About this color
#4B6CA5 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.098 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.016 away. White text reads best on it, at 5.26:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.98:1 |
| White text | 5.26:1 |
Values
| HEX | #4B6CA5 |
| RGB | rgb(75, 108, 165) |
| HSL | hsl(218, 38%, 47%) |
| OKLCH | oklch(53.2% 0.098 260.8) |
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 #4B6CA5 | 5.26:1 | AA | Lc -81.4 | Fine for body text |
| Black text on #4B6CA5 | 3.98:1 | AA large text | Lc 28.0 | Dividers and decoration only |
| #4B6CA5 text on white | 5.26:1 | AA | Lc 76.0 | Fine for body text |
| #4B6CA5 text on black | 3.98:1 | AA large text | Lc -25.7 | 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 600.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D0DAEA
oklch(88.6% 0.025 259.8)
-
Step 300
300
#B1C2DE
oklch(81% 0.044 260.4)
-
Step 400
400
#88A2CD
oklch(70.8% 0.07 260.4)
-
Step 500
500
#6A8AC0
oklch(63.1% 0.09 260.6)
-
Step 600
600 (this color)
#4B6CA5
oklch(53.2% 0.098 260.8)
-
Step 700
700
#426094
oklch(49% 0.091 260.9)
-
Step 800
800
#374F78
oklch(42.8% 0.075 260.7)
-
Step 900
900
#2F4261
oklch(37.8% 0.059 259.9)
-
Step 950
950
#1C2739
oklch(27.1% 0.037 260)
#4B6CA5 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) | #5570A7 | 0.018 |
| Deuteranopia (no green cones) | #4A68A4 | 0.012 |
| Tritanopia (no blue cones) | #197981 | 0.088 |
| Achromatopsia (no color) | #6C6C6C | 0.098 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B6CA5
#4B6CA5
oklch(53.2% 0.098 260.8)
- #89651D
#89651D
oklch(53.1% 0.097 80.5)
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 #4B6CA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.016
- Flat Blue #3C73A8 ΔE 0.023
- Muted Blue #3B719F ΔE 0.025
- Dull Blue #49759C ΔE 0.033
- Mid Blue #276AB3 ΔE 0.040
- Dusky Blue #475F94 ΔE 0.043
- Metallic Blue #4F738E ΔE 0.047
- Windows Blue #3778BF ΔE 0.048
Use #4B6CA5 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.