#4B45BF
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(47.2% 0.185 278.8), rgb(75, 69, 191).
Aa
White text reads best on this color (7.23:1).
About this color
#4B45BF is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.185 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Blue With A Hint Of Purple (#533CC6), ΔE 0.023 away. White text reads best on it, at 7.23:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.185) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 2.90:1 |
| White text | 7.23:1 |
Values
| HEX | #4B45BF |
| RGB | rgb(75, 69, 191) |
| HSL | hsl(243, 49%, 51%) |
| OKLCH | oklch(47.2% 0.185 278.8) |
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 #4B45BF | 7.23:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #4B45BF | 2.90:1 | Fails | Lc 19.4 | Dividers and decoration only |
| #4B45BF text on white | 7.23:1 | AAA | Lc 84.6 | Fine for body text |
| #4B45BF text on black | 2.90:1 | Fails | Lc -17.4 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E6E9FC
oklch(93.7% 0.026 278.7)
-
Step 200
200
#D1D6FA
oklch(88.4% 0.05 279.1)
-
Step 300
300
#B3BBFA
oklch(80.8% 0.089 278.6)
-
Step 400
400
#8E95F8
oklch(70.6% 0.144 279)
-
Step 500
500
#7577F4
oklch(63% 0.183 279.1)
-
Step 600
600
#605CE3
oklch(55.6% 0.199 279)
-
Step 700
700 (this color)
#4B45BF
oklch(47.2% 0.185 278.8)
-
Step 800
800
#413E9F
oklch(42.6% 0.153 279.1)
-
Step 900
900
#36367F
oklch(37.6% 0.12 278.9)
-
Step 950
950
#1F214A
oklch(27.1% 0.075 278.1)
#4B45BF 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) | #005CC3 | 0.071 |
| Deuteranopia (no green cones) | #0052BD | 0.063 |
| Tritanopia (no blue cones) | #00647B | 0.157 |
| Achromatopsia (no color) | #575757 | 0.185 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B45BF
#4B45BF
oklch(47.2% 0.185 278.8)
- #6A5C00
#6A5C00
oklch(47.4% 0.098 98.9)
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 #4B45BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue With A Hint Of Purple #533CC6 ΔE 0.023
- Blurple #5539CC ΔE 0.032
- Majorelle Blue #3F37C9 ΔE 0.038
- Bluey Purple #6241C7 ΔE 0.039
- Blue Blue #2242C7 ΔE 0.052
- Warm Blue #4B57DB ΔE 0.059
- Iris #6258C4 ΔE 0.060
- Purple Blue #5D21D0 ΔE 0.065
Use #4B45BF 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.