#4B528E
Closest named color: Twilight (#4E518B). oklch(46.1% 0.097 276.8), rgb(75, 82, 142).
Aa
White text reads best on this color (7.24:1).
About this color
#4B528E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.097 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.006 away. White text reads best on it, at 7.24:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.89:1 |
| White text | 7.24:1 |
Values
| HEX | #4B528E |
| RGB | rgb(75, 82, 142) |
| HSL | hsl(234, 31%, 43%) |
| OKLCH | oklch(46.1% 0.097 276.8) |
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 #4B528E | 7.24:1 | AAA | Lc -90.0 | Fine for body text |
| Black text on #4B528E | 2.89:1 | Fails | Lc 19.0 | Dividers and decoration only |
| #4B528E text on white | 7.24:1 | AAA | Lc 85.1 | Fine for body text |
| #4B528E text on black | 2.89:1 | Fails | Lc -16.9 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F3
oklch(93.5% 0.014 277.1)
-
Step 200
200
#D4D8EB
oklch(88.5% 0.026 276.4)
-
Step 300
300
#B8BFE0
oklch(81% 0.047 275.9)
-
Step 400
400
#949DD0
oklch(70.8% 0.075 276.5)
-
Step 500
500
#7A84C3
oklch(63.1% 0.096 276.4)
-
Step 600
600
#646DB0
oklch(55.7% 0.104 276.6)
-
Step 700
700 (this color)
#4B528E
oklch(46.1% 0.097 276.8)
-
Step 800
800
#444A7B
oklch(42.7% 0.081 277.1)
-
Step 900
900
#393E63
oklch(37.7% 0.064 277)
-
Step 950
950
#21253A
oklch(27.1% 0.04 275.2)
#4B528E 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) | #3B5A90 | 0.028 |
| Deuteranopia (no green cones) | #36548D | 0.027 |
| Tritanopia (no blue cones) | #335E69 | 0.085 |
| Achromatopsia (no color) | #575757 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B528E
#4B528E
oklch(46.1% 0.097 276.8)
- #685800
#685800
oklch(46.2% 0.095 96.8)
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 #4B528E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.006
- Dusk #4E5481 ΔE 0.024
- Denim Blue #3B5B92 ΔE 0.030
- Dusky Blue #475F94 ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.042
- Dusk Blue #26538D ΔE 0.044
- Dusty Grape #545775 ΔE 0.049
- Blueberry #464196 ΔE 0.051
Use #4B528E 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.