#4B4E78
Closest named color: Dusk (#4E5481). oklch(44% 0.069 280), rgb(75, 78, 120).
Aa
White text reads best on this color (7.89:1).
About this color
#4B4E78 is a dark, muted purple. In OKLCH its lightness is 44%, its chroma 0.069 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.021 away. White text reads best on it, at 7.89:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.66:1 |
| White text | 7.89:1 |
Values
| HEX | #4B4E78 |
| RGB | rgb(75, 78, 120) |
| HSL | hsl(236, 23%, 38%) |
| OKLCH | oklch(44% 0.069 280) |
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 #4B4E78 | 7.89:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #4B4E78 | 2.66:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #4B4E78 text on white | 7.89:1 | AAA | Lc 87.3 | Fine for body text |
| #4B4E78 text on black | 2.66:1 | Fails | Lc -14.8 | Not readable |
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 800.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D6D8E8
oklch(88.5% 0.022 280.3)
-
Step 300
300
#BBBEDB
oklch(80.8% 0.041 280.8)
-
Step 400
400
#989DC9
oklch(70.8% 0.064 279.6)
-
Step 500
500
#7F84BB
oklch(63.1% 0.083 279.7)
-
Step 600
600
#696DA7
oklch(55.6% 0.09 280)
-
Step 700
700
#585B8F
oklch(49.2% 0.083 280.4)
-
Step 800
800 (this color)
#4B4E78
oklch(44% 0.069 280)
-
Step 900
900
#3C3E5E
oklch(37.7% 0.055 280.7)
-
Step 950
950
#232537
oklch(27.1% 0.034 279)
#4B4E78 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) | #41537A | 0.019 |
| Deuteranopia (no green cones) | #3E5077 | 0.019 |
| Tritanopia (no blue cones) | #3E565D | 0.061 |
| Achromatopsia (no color) | #515151 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B4E78
#4B4E78
oklch(44% 0.069 280)
- #5B5322
#5B5322
oklch(43.9% 0.069 100.1)
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 #4B4E78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.021
- Twilight #4E518B ΔE 0.032
- Dusty Grape #545775 ΔE 0.033
- YInMn Blue #415A77 ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.048
- Denim Blue #3B5B92 ΔE 0.052
- Dusk Blue #26538D ΔE 0.053
- Dusky Blue #475F94 ΔE 0.059
Use #4B4E78 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.