#4A3378
Closest named color: Dark Slate Blue (#483D8B). oklch(38.4% 0.113 296), rgb(74, 51, 120).
Aa
White text reads best on this color (10.31:1).
About this color
#4A3378 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.113 and its hue 296°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.038 away. White text reads best on it, at 10.31:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.113) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.03:1 |
| White text | 10.31:1 |
Values
| HEX | #4A3378 |
| RGB | rgb(74, 51, 120) |
| HSL | hsl(260, 40%, 34%) |
| OKLCH | oklch(38.4% 0.113 296) |
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 #4A3378 | 10.31:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #4A3378 | 2.03:1 | Fails | Lc 10.2 | Not readable |
| #4A3378 text on white | 10.31:1 | AAA | Lc 93.7 | Preferred for body text |
| #4A3378 text on black | 2.03:1 | Fails | Lc -8.8 | 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 900.
-
Step 50
50
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F9
oklch(93.6% 0.024 296.1)
-
Step 200
200
#DBD3F6
oklch(88.4% 0.048 295.9)
-
Step 300
300
#C5B6F2
oklch(80.9% 0.085 295.9)
-
Step 400
400
#A98DEB
oklch(70.6% 0.137 296.5)
-
Step 500
500
#956EE5
oklch(63.1% 0.174 296.2)
-
Step 600
600
#8053D3
oklch(55.7% 0.189 295.9)
-
Step 700
700
#6C42B7
oklch(49.1% 0.176 295.7)
-
Step 800
800
#583794
oklch(42.7% 0.146 295.9)
-
Step 900
900 (this color)
#4A3378
oklch(38.4% 0.113 296)
-
Step 950
950
#2A1D45
oklch(26.9% 0.073 296.2)
#4A3378 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) | #14417A | 0.076 |
| Deuteranopia (no green cones) | #1B3F76 | 0.071 |
| Tritanopia (no blue cones) | #3F4150 | 0.089 |
| Achromatopsia (no color) | #404040 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A3378
#4A3378
oklch(38.4% 0.113 296)
- #414900
#414900
oklch(38.5% 0.088 116.7)
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 #4A3378, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.038
- Blueberry #464196 ΔE 0.058
- Rebecca Purple #663399 ΔE 0.075
- Cobalt #1E488F ΔE 0.081
- Indigo #4B0082 ΔE 0.081
- Twilight Blue #0A437A ΔE 0.082
- Twilight #4E518B ΔE 0.083
- Royal Purple #4B006E ΔE 0.087
Use #4A3378 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.