#4E308B
Closest named color: Dark Slate Blue (#483D8B). oklch(39.8% 0.144 294), rgb(78, 48, 139).
Aa
White text reads best on this color (9.90:1).
About this color
#4E308B is a dark, vivid purple. In OKLCH its lightness is 40%, its chroma 0.144 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.031 away. White text reads best on it, at 9.90:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | vivid (0.144) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.11:1 |
| White text | 9.90:1 |
Values
| HEX | #4E308B |
| RGB | rgb(78, 48, 139) |
| HSL | hsl(260, 49%, 37%) |
| OKLCH | oklch(39.8% 0.144 294) |
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 #4E308B | 9.90:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #4E308B | 2.11:1 | Fails | Lc 11.4 | Not readable |
| #4E308B text on white | 9.90:1 | AAA | Lc 92.5 | Preferred for body text |
| #4E308B text on black | 2.11:1 | Fails | Lc -9.9 | 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
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EAE6FD
oklch(93.5% 0.031 293.8)
-
Step 200
200
#DBD2FE
oklch(88.5% 0.061 294.5)
-
Step 300
300
#C4B3FF
oklch(80.8% 0.107 294.1)
-
Step 400
400
#A888FF
oklch(70.7% 0.17 294)
-
Step 500
500
#9563FF
oklch(63.2% 0.221 293.9)
-
Step 600
600
#8142EE
oklch(55.6% 0.24 293.8)
-
Step 700
700
#6E31CF
oklch(49.1% 0.223 294.1)
-
Step 800
800
#592BA7
oklch(42.6% 0.185 294)
-
Step 900
900 (this color)
#4E308B
oklch(39.8% 0.144 294)
-
Step 950
950
#2A1A4E
oklch(27% 0.091 293.5)
#4E308B 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) | #00448E | 0.091 |
| Deuteranopia (no green cones) | #004189 | 0.091 |
| Tritanopia (no blue cones) | #3D4559 | 0.113 |
| Achromatopsia (no color) | #434343 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4E308B
#4E308B
oklch(39.8% 0.144 294)
- #474C00
#474C00
oklch(39.8% 0.09 114)
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 #4E308B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.031
- Blueberry #464196 ΔE 0.044
- Rebecca Purple #663399 ΔE 0.052
- Imperial Purple #480CA8 ΔE 0.070
- Chrysanthemum #560BAD ΔE 0.071
- Indigo #4B0082 ΔE 0.072
- Cobalt #1E488F ΔE 0.082
- Indigo Blue #3A18B1 ΔE 0.084
Use #4E308B 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.