#4B408D
Closest named color: Dark Slate Blue (#483D8B). oklch(42.4% 0.123 286.5), rgb(75, 64, 141).
Aa
White text reads best on this color (8.68:1).
About this color
#4B408D is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.123 and its hue 286°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.010 away. White text reads best on it, at 8.68:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.123) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.41:1 |
| White text | 8.68:1 |
Values
| HEX | #4B408D |
| RGB | rgb(75, 64, 141) |
| HSL | hsl(249, 38%, 40%) |
| OKLCH | oklch(42.4% 0.123 286.5) |
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 #4B408D | 8.68:1 | AAA | Lc -94.1 | Preferred for body text |
| Black text on #4B408D | 2.41:1 | Fails | Lc 14.4 | Not readable |
| #4B408D text on white | 8.68:1 | AAA | Lc 89.6 | Fine for body text |
| #4B408D text on black | 2.41:1 | Fails | Lc -12.7 | 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
#F5F5FC
oklch(97.2% 0.009 286.2)
-
Step 100
100
#E8E8F8
oklch(93.6% 0.022 286)
-
Step 200
200
#D6D6F3
oklch(88.5% 0.04 285.6)
-
Step 300
300
#BCBAEE
oklch(80.8% 0.073 286.4)
-
Step 400
400
#9B95E5
oklch(70.7% 0.116 286.5)
-
Step 500
500
#8479DD
oklch(63.1% 0.147 286.4)
-
Step 600
600
#6F60CB
oklch(55.7% 0.16 286.4)
-
Step 700
700
#5D4EAF
oklch(49% 0.149 286.6)
-
Step 800
800 (this color)
#4B408D
oklch(42.4% 0.123 286.5)
-
Step 900
900
#3F3871
oklch(37.8% 0.095 286.6)
-
Step 950
950
#252142
oklch(27% 0.06 287.2)
#4B408D 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) | #1A4D90 | 0.063 |
| Deuteranopia (no green cones) | #18498B | 0.063 |
| Tritanopia (no blue cones) | #365160 | 0.104 |
| Achromatopsia (no color) | #4B4B4B | 0.123 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B408D
#4B408D
oklch(42.4% 0.123 286.5)
- #555100
#555100
oklch(42.5% 0.091 106.4)
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 #4B408D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.010
- Blueberry #464196 ΔE 0.017
- Twilight #4E518B ΔE 0.048
- Cobalt #1E488F ΔE 0.058
- Rebecca Purple #663399 ΔE 0.058
- Dusk #4E5481 ΔE 0.063
- Dusk Blue #26538D ΔE 0.065
- Light Navy #155084 ΔE 0.074
Use #4B408D 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.