#4B64BD
Closest named color: French Blue (#436BAD). oklch(52.9% 0.142 269.3), rgb(75, 100, 189).
Aa
White text reads best on this color (5.44:1).
About this color
#4B64BD is a medium-dark, vivid blue. In OKLCH its lightness is 53%, its chroma 0.142 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.035 away. White text reads best on it, at 5.44:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | vivid (0.142) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.85:1 |
| White text | 5.44:1 |
Values
| HEX | #4B64BD |
| RGB | rgb(75, 100, 189) |
| HSL | hsl(227, 46%, 52%) |
| OKLCH | oklch(52.9% 0.142 269.3) |
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 #4B64BD | 5.44:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #4B64BD | 3.85:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #4B64BD text on white | 5.44:1 | AA | Lc 76.9 | Fine for body text |
| #4B64BD text on black | 3.85:1 | AA large text | Lc -24.8 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF7
oklch(93.7% 0.018 269.1)
-
Step 200
200
#CFD9F1
oklch(88.5% 0.035 267.6)
-
Step 300
300
#B0C0EB
oklch(81% 0.063 269)
-
Step 400
400
#879EE1
oklch(70.8% 0.102 269.2)
-
Step 500
500
#6A84D8
oklch(63.1% 0.13 269.4)
-
Step 600
600 (this color)
#4B64BD
oklch(52.9% 0.142 269.3)
-
Step 700
700
#435AAB
oklch(49.2% 0.132 269.2)
-
Step 800
800
#374A8A
oklch(42.7% 0.108 269)
-
Step 900
900
#2F3E6F
oklch(37.7% 0.086 269.2)
-
Step 950
950
#1C2541
oklch(27.1% 0.054 269.1)
#4B64BD 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) | #396FC0 | 0.032 |
| Deuteranopia (no green cones) | #2665BB | 0.035 |
| Tritanopia (no blue cones) | #007887 | 0.124 |
| Achromatopsia (no color) | #6A6A6A | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B64BD
#4B64BD
oklch(52.9% 0.142 269.3)
- #856700
#856700
oklch(52.9% 0.108 88.5)
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 #4B64BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.035
- Mid Blue #276AB3 ΔE 0.040
- Iris #6258C4 ΔE 0.043
- Dark Periwinkle #665FD1 ΔE 0.050
- Windows Blue #3778BF ΔE 0.054
- Slate Blue #6A5ACD ΔE 0.055
- Royal Blue #4169E1 ΔE 0.056
- Warm Blue #4B57DB ΔE 0.058
Use #4B64BD 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.