#4B4978
Closest named color: Dusk (#4E5481). oklch(42.9% 0.077 284.6), rgb(75, 73, 120).
Aa
White text reads best on this color (8.32:1).
About this color
#4B4978 is a dark, moderately saturated purple. In OKLCH its lightness is 43%, its chroma 0.077 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.033 away. White text reads best on it, at 8.32:1.
| Hue family | Purples |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.52:1 |
| White text | 8.32:1 |
Values
| HEX | #4B4978 |
| RGB | rgb(75, 73, 120) |
| HSL | hsl(243, 24%, 38%) |
| OKLCH | oklch(42.9% 0.077 284.6) |
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 #4B4978 | 8.32:1 | AAA | Lc -93.3 | Preferred for body text |
| Black text on #4B4978 | 2.52:1 | Fails | Lc 15.3 | Dividers and decoration only |
| #4B4978 text on white | 8.32:1 | AAA | Lc 88.7 | Fine for body text |
| #4B4978 text on black | 2.52:1 | Fails | Lc -13.5 | 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
#F5F5F9
oklch(97.1% 0.005 286.3)
-
Step 100
100
#E8E9F2
oklch(93.6% 0.012 281.1)
-
Step 200
200
#D7D7EA
oklch(88.5% 0.026 285.9)
-
Step 300
300
#BDBDDD
oklch(80.9% 0.045 285.4)
-
Step 400
400
#9B9BCC
oklch(70.7% 0.071 284.4)
-
Step 500
500
#8382BF
oklch(63.2% 0.091 284.2)
-
Step 600
600
#6D6AAB
oklch(55.5% 0.1 284.8)
-
Step 700
700
#5B5893
oklch(49% 0.093 284.7)
-
Step 800
800 (this color)
#4B4978
oklch(42.9% 0.077 284.6)
-
Step 900
900
#3E3D60
oklch(37.7% 0.059 284.5)
-
Step 950
950
#242438
oklch(27% 0.037 283.7)
#4B4978 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) | #3A4F7A | 0.028 |
| Deuteranopia (no green cones) | #394D77 | 0.028 |
| Tritanopia (no blue cones) | #3F525B | 0.066 |
| Achromatopsia (no color) | #4E4E4E | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B4978
#4B4978
oklch(42.9% 0.077 284.6)
- #565118
#565118
oklch(42.8% 0.076 104.3)
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 #4B4978, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.033
- Twilight #4E518B ΔE 0.036
- Dusty Grape #545775 ΔE 0.047
- Dark Slate Blue #483D8B ΔE 0.050
- YInMn Blue #415A77 ΔE 0.052
- Dusk Blue #26538D ΔE 0.056
- Light Navy Blue #2E5A88 ΔE 0.058
- Blueberry #464196 ΔE 0.058
Use #4B4978 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.