#4B407E
Closest named color: Dark Slate Blue (#483D8B). oklch(41.4% 0.101 289.4), rgb(75, 64, 126).
Aa
White text reads best on this color (8.99:1).
About this color
#4B407E is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.101 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.025 away. White text reads best on it, at 8.99:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.33:1 |
| White text | 8.99:1 |
Values
| HEX | #4B407E |
| RGB | rgb(75, 64, 126) |
| HSL | hsl(251, 33%, 37%) |
| OKLCH | oklch(41.4% 0.101 289.4) |
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 #4B407E | 8.99:1 | AAA | Lc -94.9 | Preferred for body text |
| Black text on #4B407E | 2.33:1 | Fails | Lc 13.5 | Not readable |
| #4B407E text on white | 8.99:1 | AAA | Lc 90.5 | Preferred for body text |
| #4B407E text on black | 2.33:1 | Fails | Lc -11.8 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6EE
oklch(88.5% 0.033 289.5)
-
Step 300
300
#BFBBE5
oklch(80.9% 0.059 289.4)
-
Step 400
400
#9F97D8
oklch(70.8% 0.094 289.4)
-
Step 500
500
#887CCD
oklch(63.1% 0.12 289.3)
-
Step 600
600
#7364BA
oklch(55.7% 0.13 289.5)
-
Step 700
700
#6052A0
oklch(49% 0.122 289.4)
-
Step 800
800 (this color)
#4B407E
oklch(41.4% 0.101 289.4)
-
Step 900
900
#413968
oklch(37.6% 0.079 289.9)
-
Step 950
950
#26223D
oklch(27% 0.049 289.5)
#4B407E 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) | #294A80 | 0.051 |
| Deuteranopia (no green cones) | #29487D | 0.050 |
| Tritanopia (no blue cones) | #3D4C59 | 0.083 |
| Achromatopsia (no color) | #494949 | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B407E
#4B407E
oklch(41.4% 0.101 289.4)
- #4F4F00
#4F4F00
oklch(41.4% 0.09 109.8)
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 #4B407E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.025
- Blueberry #464196 ΔE 0.040
- Twilight #4E518B ΔE 0.049
- Dusk #4E5481 ΔE 0.057
- Cobalt #1E488F ΔE 0.063
- Dusk Blue #26538D ΔE 0.066
- Light Navy #155084 ΔE 0.070
- Rebecca Purple #663399 ΔE 0.072
Use #4B407E 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.