#4B45BC
Closest named color: Blue With A Hint Of Purple (#533CC6). oklch(47% 0.181 279.1), rgb(75, 69, 188).
Aa
White text reads best on this color (7.30:1).
About this color
#4B45BC is a medium-dark, vivid blue. In OKLCH its lightness is 47%, its chroma 0.181 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 0.025 away. White text reads best on it, at 7.30:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Blue With A Hint Of Purple (#533CC6) |
| Black text | 2.87:1 |
| White text | 7.30:1 |
Values
| HEX | #4B45BC |
| RGB | rgb(75, 69, 188) |
| HSL | hsl(243, 47%, 50%) |
| OKLCH | oklch(47% 0.181 279.1) |
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 #4B45BC | 7.30:1 | AAA | Lc -89.8 | Fine for body text |
| Black text on #4B45BC | 2.87:1 | Fails | Lc 19.2 | Dividers and decoration only |
| #4B45BC text on white | 7.30:1 | AAA | Lc 84.9 | Fine for body text |
| #4B45BC text on black | 2.87:1 | Fails | Lc -17.1 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D2D7FA
oklch(88.6% 0.048 278.9)
-
Step 300
300
#B4BBF9
oklch(80.9% 0.088 279.2)
-
Step 400
400
#8F96F6
oklch(70.8% 0.139 279)
-
Step 500
500
#7678F2
oklch(63.1% 0.179 279.3)
-
Step 600
600
#605DE1
oklch(55.6% 0.195 279)
-
Step 700
700 (this color)
#4B45BC
oklch(47% 0.181 279.1)
-
Step 800
800
#413F9E
oklch(42.7% 0.15 278.9)
-
Step 900
900
#37377D
oklch(37.8% 0.116 279.3)
-
Step 950
950
#202149
oklch(27.1% 0.073 279.3)
#4B45BC 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) | #005BC0 | 0.070 |
| Deuteranopia (no green cones) | #0052BA | 0.064 |
| Tritanopia (no blue cones) | #00637A | 0.154 |
| Achromatopsia (no color) | #565656 | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B45BC
#4B45BC
oklch(47% 0.181 279.1)
- #695B00
#695B00
oklch(47% 0.097 98.8)
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 #4B45BC, 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 0.025
- Blurple #5539CC ΔE 0.036
- Majorelle Blue #3F37C9 ΔE 0.041
- Bluey Purple #6241C7 ΔE 0.041
- Blue Blue #2242C7 ΔE 0.054
- Iris #6258C4 ΔE 0.061
- Blueberry #464196 ΔE 0.062
- Warm Blue #4B57DB ΔE 0.063
Use #4B45BC 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.