#4D3597
Closest named color: Dark Slate Blue (#483D8B). oklch(41.4% 0.153 289.3), rgb(77, 53, 151).
Aa
White text reads best on this color (9.24:1).
About this color
#4D3597 is a dark, vivid purple. In OKLCH its lightness is 41%, its chroma 0.153 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.029 away. White text reads best on it, at 9.24:1.
| Hue family | Purples |
| Lightness | dark (41%) |
| Chroma | vivid (0.153) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.27:1 |
| White text | 9.24:1 |
Values
| HEX | #4D3597 |
| RGB | rgb(77, 53, 151) |
| HSL | hsl(255, 48%, 40%) |
| OKLCH | oklch(41.4% 0.153 289.3) |
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 #4D3597 | 9.24:1 | AAA | Lc -95.2 | Preferred for body text |
| Black text on #4D3597 | 2.27:1 | Fails | Lc 13.1 | Not readable |
| #4D3597 text on white | 9.24:1 | AAA | Lc 90.9 | Preferred for body text |
| #4D3597 text on black | 2.27:1 | Fails | Lc -11.5 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E7FB
oklch(93.5% 0.027 290.5)
-
Step 200
200
#D7D4F9
oklch(88.4% 0.051 289)
-
Step 300
300
#BEB7F7
oklch(80.8% 0.09 289.2)
-
Step 400
400
#9F90F3
oklch(70.7% 0.142 289.2)
-
Step 500
500
#8A70EE
oklch(63% 0.182 289.6)
-
Step 600
600
#7555DD
oklch(55.7% 0.198 289.2)
-
Step 700
700
#6344C0
oklch(49.2% 0.184 289.3)
-
Step 800
800 (this color)
#4D3597
oklch(41.4% 0.153 289.3)
-
Step 900
900
#42327B
oklch(37.6% 0.119 289.5)
-
Step 950
950
#261E48
oklch(26.9% 0.075 289.1)
#4D3597 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) | #00499A | 0.084 |
| Deuteranopia (no green cones) | #004595 | 0.083 |
| Tritanopia (no blue cones) | #354C61 | 0.123 |
| Achromatopsia (no color) | #474747 | 0.153 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4D3597
#4D3597
oklch(41.4% 0.153 289.3)
- #504F00
#504F00
oklch(41.5% 0.09 108.9)
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 #4D3597, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.029
- Blueberry #464196 ΔE 0.029
- Rebecca Purple #663399 ΔE 0.047
- Chrysanthemum #560BAD ΔE 0.065
- Imperial Purple #480CA8 ΔE 0.066
- Sapphire #2138AB ΔE 0.071
- Indigo Blue #3A18B1 ΔE 0.074
- Cobalt #1E488F ΔE 0.074
Use #4D3597 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.