#4B65C3
Closest named color: French Blue (#436BAD). oklch(53.6% 0.149 269.2), rgb(75, 101, 195).
Aa
White text reads best on this color (5.31:1).
About this color
#4B65C3 is a medium-dark, vivid blue. In OKLCH its lightness is 54%, its chroma 0.149 and its hue 269°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.042 away. White text reads best on it, at 5.31:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 3.94:1 |
| White text | 5.31:1 |
Values
| HEX | #4B65C3 |
| RGB | rgb(75, 101, 195) |
| HSL | hsl(227, 50%, 53%) |
| OKLCH | oklch(53.6% 0.149 269.2) |
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 #4B65C3 | 5.31:1 | AA | Lc -81.5 | Fine for body text |
| Black text on #4B65C3 | 3.94:1 | AA large text | Lc 27.9 | Dividers and decoration only |
| #4B65C3 text on white | 5.31:1 | AA | Lc 76.2 | Fine for body text |
| #4B65C3 text on black | 3.94:1 | AA large text | Lc -25.5 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4EAF7
oklch(93.6% 0.019 266)
-
Step 200
200
#CFD9F3
oklch(88.6% 0.037 268.9)
-
Step 300
300
#AFBFED
oklch(80.8% 0.068 269.9)
-
Step 400
400
#859DE4
oklch(70.6% 0.108 269.3)
-
Step 500
500
#6883DC
oklch(63% 0.138 269.4)
-
Step 600
600 (this color)
#4B65C3
oklch(53.6% 0.149 269.2)
-
Step 700
700
#4159AF
oklch(49.1% 0.14 269)
-
Step 800
800
#36498D
oklch(42.7% 0.115 269.3)
-
Step 900
900
#2E3E71
oklch(37.7% 0.09 268.7)
-
Step 950
950
#1B2442
oklch(26.9% 0.057 269.6)
#4B65C3 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) | #3571C6 | 0.035 |
| Deuteranopia (no green cones) | #1F66C1 | 0.038 |
| Tritanopia (no blue cones) | #007A8A | 0.128 |
| Achromatopsia (no color) | #6B6B6B | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B65C3
#4B65C3
oklch(53.6% 0.149 269.2)
- #876900
#876900
oklch(53.6% 0.109 88.9)
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 #4B65C3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.042
- Iris #6258C4 ΔE 0.042
- Dark Periwinkle #665FD1 ΔE 0.044
- Mid Blue #276AB3 ΔE 0.045
- Royal Blue #4169E1 ΔE 0.047
- Slate Blue #6A5ACD ΔE 0.051
- Warm Blue #4B57DB ΔE 0.052
- Windows Blue #3778BF ΔE 0.054
Use #4B65C3 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.