#4E457B
Closest named color: Twilight (#4E518B). oklch(42.5% 0.088 289.8), rgb(78, 69, 123).
Aa
White text reads best on this color (8.53:1).
About this color
#4E457B is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.088 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight (#4E518B), ΔE 0.039 away. White text reads best on it, at 8.53:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.088) |
| Temperature | cool |
| Nearest name | Twilight (#4E518B) |
| Black text | 2.46:1 |
| White text | 8.53:1 |
Values
| HEX | #4E457B |
| RGB | rgb(78, 69, 123) |
| HSL | hsl(250, 28%, 38%) |
| OKLCH | oklch(42.5% 0.088 289.8) |
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 #4E457B | 8.53:1 | AAA | Lc -93.8 | Preferred for body text |
| Black text on #4E457B | 2.46:1 | Fails | Lc 14.7 | Not readable |
| #4E457B text on white | 8.53:1 | AAA | Lc 89.3 | Fine for body text |
| #4E457B text on black | 2.46:1 | Fails | Lc -13.0 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D8D6EB
oklch(88.4% 0.029 290.2)
-
Step 300
300
#BFBCE0
oklch(80.9% 0.05 289)
-
Step 400
400
#9F98D1
oklch(70.6% 0.083 289.7)
-
Step 500
500
#887EC5
oklch(63.1% 0.106 289.5)
-
Step 600
600
#7366B1
oklch(55.6% 0.114 290.1)
-
Step 700
700
#605598
oklch(49.1% 0.105 289.5)
-
Step 800
800 (this color)
#4E457B
oklch(42.5% 0.088 289.8)
-
Step 900
900
#413B63
oklch(37.7% 0.067 289.6)
-
Step 950
950
#26233A
oklch(27.1% 0.042 289.2)
#4E457B 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) | #334D7D | 0.042 |
| Deuteranopia (no green cones) | #344B7A | 0.040 |
| Tritanopia (no blue cones) | #434F5A | 0.073 |
| Achromatopsia (no color) | #4C4C4C | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E457B
#4E457B
oklch(42.5% 0.088 289.8)
- #525209
#525209
oklch(42.5% 0.088 109.6)
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 #4E457B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight #4E518B ΔE 0.039
- Dark Slate Blue #483D8B ΔE 0.039
- Dusk #4E5481 ΔE 0.042
- Blueberry #464196 ΔE 0.050
- Dusty Grape #545775 ΔE 0.058
- Dusk Blue #26538D ΔE 0.062
- YInMn Blue #415A77 ΔE 0.065
- Cobalt #1E488F ΔE 0.067
Use #4E457B 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.