#4A3773
Closest named color: Dark Slate Blue (#483D8B). oklch(38.8% 0.1 296), rgb(74, 55, 115).
Aa
White text reads best on this color (10.07:1).
About this color
#4A3773 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.100 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 0.041 away. White text reads best on it, at 10.07:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.08:1 |
| White text | 10.07:1 |
Values
| HEX | #4A3773 |
| RGB | rgb(74, 55, 115) |
| HSL | hsl(259, 35%, 33%) |
| OKLCH | oklch(38.8% 0.1 296) |
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 #4A3773 | 10.07:1 | AAA | Lc -97.3 | Preferred for body text |
| Black text on #4A3773 | 2.08:1 | Fails | Lc 10.7 | Not readable |
| #4A3773 text on white | 10.07:1 | AAA | Lc 93.2 | Preferred for body text |
| #4A3773 text on black | 2.08:1 | Fails | Lc -9.3 | 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
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DBD4F2
oklch(88.5% 0.041 296.2)
-
Step 300
300
#C4B7EC
oklch(80.8% 0.075 295.9)
-
Step 400
400
#A790E3
oklch(70.6% 0.121 295.9)
-
Step 500
500
#9373DA
oklch(63.1% 0.152 296.1)
-
Step 600
600
#7E59C8
oklch(55.7% 0.166 295.9)
-
Step 700
700
#6B48AD
oklch(49.2% 0.155 296.2)
-
Step 800
800
#573C8C
oklch(42.8% 0.128 296.1)
-
Step 900
900 (this color)
#4A3773
oklch(38.8% 0.1 296)
-
Step 950
950
#291F41
oklch(26.9% 0.062 295.5)
#4A3773 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) | #214275 | 0.063 |
| Deuteranopia (no green cones) | #264172 | 0.058 |
| Tritanopia (no blue cones) | #41434F | 0.080 |
| Achromatopsia (no color) | #424242 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A3773
#4A3773
oklch(38.8% 0.1 296)
- #424A00
#424A00
oklch(38.8% 0.089 116.6)
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 #4A3773, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.041
- Blueberry #464196 ΔE 0.061
- Twilight #4E518B ΔE 0.077
- Twilight Blue #0A437A ΔE 0.077
- Cobalt #1E488F ΔE 0.079
- Rebecca Purple #663399 ΔE 0.082
- Dusk #4E5481 ΔE 0.082
- Dark Grey Blue #29465B ΔE 0.082
Use #4A3773 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.