#4A3F80
Closest named color: Dark Slate Blue (#483D8B). oklch(41.2% 0.106 288.7), rgb(74, 63, 128).
Aa
White text reads best on this color (9.07:1).
About this color
#4A3F80 is a dark, moderately saturated purple. In OKLCH its lightness is 41%, its chroma 0.106 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.020 away. White text reads best on it, at 9.07:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.31:1 |
| White text | 9.07:1 |
Values
| HEX | #4A3F80 |
| RGB | rgb(74, 63, 128) |
| HSL | hsl(250, 34%, 37%) |
| OKLCH | oklch(41.2% 0.106 288.7) |
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 #4A3F80 | 9.07:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #4A3F80 | 2.31:1 | Fails | Lc 13.3 | Not readable |
| #4A3F80 text on white | 9.07:1 | AAA | Lc 90.7 | Preferred for body text |
| #4A3F80 text on black | 2.31:1 | Fails | Lc -11.6 | 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
#D8D6EF
oklch(88.5% 0.034 289.4)
-
Step 300
300
#BEBBE7
oklch(80.9% 0.062 288.1)
-
Step 400
400
#9E96DB
oklch(70.6% 0.1 288.9)
-
Step 500
500
#877BD1
oklch(63% 0.127 288.6)
-
Step 600
600
#7263BE
oklch(55.7% 0.137 288.7)
-
Step 700
700
#6051A4
oklch(49.1% 0.129 289.1)
-
Step 800
800 (this color)
#4A3F80
oklch(41.2% 0.106 288.7)
-
Step 900
900
#40396A
oklch(37.6% 0.082 288.4)
-
Step 950
950
#26223E
oklch(27.1% 0.051 289.1)
#4A3F80 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) | #254A82 | 0.054 |
| Deuteranopia (no green cones) | #25477F | 0.053 |
| Tritanopia (no blue cones) | #3B4C59 | 0.088 |
| Achromatopsia (no color) | #484848 | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A3F80
#4A3F80
oklch(41.2% 0.106 288.7)
- #4F4E00
#4F4E00
oklch(41.1% 0.089 108.9)
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 #4A3F80, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.020
- Blueberry #464196 ΔE 0.037
- Twilight #4E518B ΔE 0.051
- Dusk #4E5481 ΔE 0.061
- Cobalt #1E488F ΔE 0.061
- Dusk Blue #26538D ΔE 0.067
- Rebecca Purple #663399 ΔE 0.070
- Light Navy #155084 ΔE 0.071
Use #4A3F80 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.