#4B3576
Closest named color: Dark Slate Blue (#483D8B). oklch(38.7% 0.107 296.7), rgb(75, 53, 118).
Aa
White text reads best on this color (10.14:1).
About this color
#4B3576 is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.107 and its hue 297°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.039 away. White text reads best on it, at 10.14:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.107) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.07:1 |
| White text | 10.14:1 |
Values
| HEX | #4B3576 |
| RGB | rgb(75, 53, 118) |
| HSL | hsl(260, 38%, 34%) |
| OKLCH | oklch(38.7% 0.107 296.7) |
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 #4B3576 | 10.14:1 | AAA | Lc -97.4 | Preferred for body text |
| Black text on #4B3576 | 2.07:1 | Fails | Lc 10.6 | Not readable |
| #4B3576 text on white | 10.14:1 | AAA | Lc 93.3 | Preferred for body text |
| #4B3576 text on black | 2.07:1 | Fails | Lc -9.2 | 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
#EBE7F8
oklch(93.6% 0.023 296.7)
-
Step 200
200
#DCD4F4
oklch(88.6% 0.044 296.9)
-
Step 300
300
#C5B6EF
oklch(80.8% 0.081 296.6)
-
Step 400
400
#A98EE7
oklch(70.6% 0.13 296.9)
-
Step 500
500
#9570E0
oklch(63.2% 0.165 296.6)
-
Step 600
600
#8055CD
oklch(55.6% 0.178 296.7)
-
Step 700
700
#6D44B2
oklch(49.1% 0.167 297)
-
Step 800
800
#583990
oklch(42.7% 0.138 296.5)
-
Step 900
900 (this color)
#4B3576
oklch(38.7% 0.107 296.7)
-
Step 950
950
#2A1E43
oklch(27% 0.067 296.6)
#4B3576 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) | #1B4278 | 0.071 |
| Deuteranopia (no green cones) | #214174 | 0.066 |
| Tritanopia (no blue cones) | #414250 | 0.085 |
| Achromatopsia (no color) | #414141 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B3576
#4B3576
oklch(38.7% 0.107 296.7)
- #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 #4B3576, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.039
- Blueberry #464196 ΔE 0.059
- Rebecca Purple #663399 ΔE 0.076
- Twilight #4E518B ΔE 0.079
- Cobalt #1E488F ΔE 0.080
- Twilight Blue #0A437A ΔE 0.081
- Dusk #4E5481 ΔE 0.086
- Indigo #4B0082 ΔE 0.087
Use #4B3576 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.