#4B478E
Closest named color: Blueberry (#464196). oklch(43.9% 0.114 283.2), rgb(75, 71, 142).
Aa
White text reads best on this color (8.10:1).
About this color
#4B478E is a dark, moderately saturated purple. In OKLCH its lightness is 44%, its chroma 0.114 and its hue 283°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.024 away. White text reads best on it, at 8.10:1.
| Hue family | Purples |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.59:1 |
| White text | 8.10:1 |
Values
| HEX | #4B478E |
| RGB | rgb(75, 71, 142) |
| HSL | hsl(243, 33%, 42%) |
| OKLCH | oklch(43.9% 0.114 283.2) |
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 #4B478E | 8.10:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #4B478E | 2.59:1 | Fails | Lc 16.1 | Dividers and decoration only |
| #4B478E text on white | 8.10:1 | AAA | Lc 87.9 | Fine for body text |
| #4B478E text on black | 2.59:1 | Fails | Lc -14.3 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E8F7
oklch(93.5% 0.02 286)
-
Step 200
200
#D5D7F2
oklch(88.6% 0.037 282.2)
-
Step 300
300
#BABCEB
oklch(81% 0.066 282.9)
-
Step 400
400
#9798E1
oklch(70.7% 0.106 282.7)
-
Step 500
500
#7F7CD8
oklch(63% 0.136 283.2)
-
Step 600
600
#6A64C6
oklch(55.7% 0.148 283.3)
-
Step 700
700
#5852AB
oklch(49% 0.138 283.1)
-
Step 800
800 (this color)
#4B478E
oklch(43.9% 0.114 283.2)
-
Step 900
900
#3C3A6F
oklch(37.8% 0.089 283)
-
Step 950
950
#232241
oklch(27% 0.057 283.4)
#4B478E 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) | #285291 | 0.049 |
| Deuteranopia (no green cones) | #254D8C | 0.049 |
| Tritanopia (no blue cones) | #355663 | 0.098 |
| Achromatopsia (no color) | #505050 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B478E
#4B478E
oklch(43.9% 0.114 283.2)
- #5C5400
#5C5400
oklch(44% 0.093 103.1)
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 #4B478E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.024
- Dark Slate Blue #483D8B ΔE 0.027
- Twilight #4E518B ΔE 0.030
- Dusk #4E5481 ΔE 0.047
- Dusk Blue #26538D ΔE 0.053
- Cobalt #1E488F ΔE 0.055
- Denim Blue #3B5B92 ΔE 0.056
- Light Navy Blue #2E5A88 ΔE 0.064
Use #4B478E 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.