#4A3C79
Closest named color: Dark Slate Blue (#483D8B). oklch(40.2% 0.1 291.8), rgb(74, 60, 121).
Aa
White text reads best on this color (9.48:1).
About this color
#4A3C79 is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.100 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.030 away. White text reads best on it, at 9.48:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.21:1 |
| White text | 9.48:1 |
Values
| HEX | #4A3C79 |
| RGB | rgb(74, 60, 121) |
| HSL | hsl(254, 34%, 35%) |
| OKLCH | oklch(40.2% 0.1 291.8) |
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 #4A3C79 | 9.48:1 | AAA | Lc -96.1 | Preferred for body text |
| Black text on #4A3C79 | 2.21:1 | Fails | Lc 12.2 | Not readable |
| #4A3C79 text on white | 9.48:1 | AAA | Lc 91.8 | Preferred for body text |
| #4A3C79 text on black | 2.21:1 | Fails | Lc -10.6 | 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 900.
-
Step 50
50
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#EAE8F8
oklch(93.7% 0.022 291.7)
-
Step 200
200
#D9D5F3
oklch(88.5% 0.041 291.7)
-
Step 300
300
#C1B8EE
oklch(80.8% 0.076 292.3)
-
Step 400
400
#A292E5
oklch(70.7% 0.12 291.9)
-
Step 500
500
#8D75DD
oklch(63.1% 0.153 292.1)
-
Step 600
600
#785BCB
oklch(55.6% 0.167 292)
-
Step 700
700
#654AB0
oklch(49.1% 0.156 291.9)
-
Step 800
800
#523D8E
oklch(42.6% 0.129 292)
-
Step 900
900 (this color)
#4A3C79
oklch(40.2% 0.1 291.8)
-
Step 950
950
#272042
oklch(27% 0.062 291.2)
#4A3C79 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) | #25477B | 0.056 |
| Deuteranopia (no green cones) | #274478 | 0.053 |
| Tritanopia (no blue cones) | #3E4854 | 0.083 |
| Achromatopsia (no color) | #464646 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A3C79
#4A3C79
oklch(40.2% 0.1 291.8)
- #4A4C00
#4A4C00
oklch(40.1% 0.088 111.5)
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 #4A3C79, 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
- Blueberry #464196 ΔE 0.049
- Twilight #4E518B ΔE 0.062
- Cobalt #1E488F ΔE 0.068
- Dusk #4E5481 ΔE 0.068
- Twilight Blue #0A437A ΔE 0.073
- Dusk Blue #26538D ΔE 0.076
- Rebecca Purple #663399 ΔE 0.076
Use #4A3C79 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.