#4E3773
Closest named color: Dark Slate Blue (#483D8B). oklch(39.2% 0.1 299.5), rgb(78, 55, 115).
Aa
White text reads best on this color (9.91:1).
About this color
#4E3773 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.100 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.042 away. White text reads best on it, at 9.91:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.11:1 |
| White text | 9.91:1 |
Values
| HEX | #4E3773 |
| RGB | rgb(78, 55, 115) |
| HSL | hsl(263, 35%, 33%) |
| OKLCH | oklch(39.2% 0.1 299.5) |
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 #4E3773 | 9.91:1 | AAA | Lc -97.0 | Preferred for body text |
| Black text on #4E3773 | 2.11:1 | Fails | Lc 11.1 | Not readable |
| #4E3773 text on white | 9.91:1 | AAA | Lc 92.8 | Preferred for body text |
| #4E3773 text on black | 2.11:1 | Fails | Lc -9.6 | 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 900.
-
Step 50
50
#F6F4FB
oklch(97.1% 0.009 299.2)
-
Step 100
100
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DDD4F1
oklch(88.6% 0.041 299.7)
-
Step 300
300
#C7B6EB
oklch(80.8% 0.076 299.4)
-
Step 400
400
#AC8FE1
oklch(70.8% 0.121 299.6)
-
Step 500
500
#9871D8
oklch(63.2% 0.153 299.5)
-
Step 600
600
#8357C5
oklch(55.7% 0.166 299.4)
-
Step 700
700
#6F46AA
oklch(49.1% 0.155 299.6)
-
Step 800
800
#5A3A8A
oklch(42.6% 0.129 299.3)
-
Step 900
900 (this color)
#4E3773
oklch(39.2% 0.1 299.5)
-
Step 950
950
#2B1E41
oklch(26.9% 0.064 299.2)
#4E3773 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) | #234375 | 0.068 |
| Deuteranopia (no green cones) | #294272 | 0.062 |
| Tritanopia (no blue cones) | #46424F | 0.078 |
| Achromatopsia (no color) | #434343 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E3773
#4E3773
oklch(39.2% 0.1 299.5)
- #404C00
#404C00
oklch(39.2% 0.093 119.5)
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 #4E3773, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.042
- Blueberry #464196 ΔE 0.062
- Twilight #4E518B ΔE 0.075
- Rebecca Purple #663399 ΔE 0.077
- Dusk #4E5481 ΔE 0.080
- Cobalt #1E488F ΔE 0.083
- Twilight Blue #0A437A ΔE 0.084
- Dark Grey Blue #29465B ΔE 0.086
Use #4E3773 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.