#4B447F
Closest named color: Dark Slate Blue (#483D8B). oklch(42.3% 0.096 287), rgb(75, 68, 127).
Aa
White text reads best on this color (8.63:1).
About this color
#4B447F is a dark, moderately saturated purple. In OKLCH its lightness is 42%, its chroma 0.096 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.030 away. White text reads best on it, at 8.63:1.
| Hue family | Purples |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.43:1 |
| White text | 8.63:1 |
Values
| HEX | #4B447F |
| RGB | rgb(75, 68, 127) |
| HSL | hsl(247, 30%, 38%) |
| OKLCH | oklch(42.3% 0.096 287) |
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 #4B447F | 8.63:1 | AAA | Lc -94.0 | Preferred for body text |
| Black text on #4B447F | 2.43:1 | Fails | Lc 14.5 | Not readable |
| #4B447F text on white | 8.63:1 | AAA | Lc 89.5 | Fine for body text |
| #4B447F text on black | 2.43:1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D7D6ED
oklch(88.4% 0.031 287.7)
-
Step 300
300
#BDBCE4
oklch(80.9% 0.056 286.2)
-
Step 400
400
#9C98D6
oklch(70.6% 0.09 286.8)
-
Step 500
500
#857ECB
oklch(63.1% 0.114 286.8)
-
Step 600
600
#6F66B8
oklch(55.6% 0.125 286.6)
-
Step 700
700
#5D549E
oklch(49% 0.116 286.9)
-
Step 800
800 (this color)
#4B447F
oklch(42.3% 0.096 287)
-
Step 900
900
#3F3B67
oklch(37.8% 0.074 286.4)
-
Step 950
950
#25233C
oklch(27.1% 0.046 286.6)
#4B447F 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) | #2F4D81 | 0.043 |
| Deuteranopia (no green cones) | #2E4A7E | 0.042 |
| Tritanopia (no blue cones) | #3D505B | 0.082 |
| Achromatopsia (no color) | #4C4C4C | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B447F
#4B447F
oklch(42.3% 0.096 287)
- #545100
#545100
oklch(42.4% 0.091 107.3)
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 #4B447F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.030
- Twilight #4E518B ΔE 0.039
- Blueberry #464196 ΔE 0.041
- Dusk #4E5481 ΔE 0.046
- Dusk Blue #26538D ΔE 0.059
- Cobalt #1E488F ΔE 0.060
- Light Navy #155084 ΔE 0.064
- Dusty Grape #545775 ΔE 0.065
Use #4B447F 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.