#4A3170
Closest named color: Dark Slate Blue (#483D8B). oklch(37.5% 0.106 299.6), rgb(74, 49, 112).
Aa
White text reads best on this color (10.68:1).
About this color
#4A3170 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.106 and its hue 300°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 10.68:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.106) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.96:1 |
| White text | 10.68:1 |
Values
| HEX | #4A3170 |
| RGB | rgb(74, 49, 112) |
| HSL | hsl(264, 39%, 32%) |
| OKLCH | oklch(37.5% 0.106 299.6) |
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 #4A3170 | 10.68:1 | AAA | Lc -98.5 | Preferred for body text |
| Black text on #4A3170 | 1.96:1 | Fails | Lc 9.4 | Not readable |
| #4A3170 text on white | 10.68:1 | AAA | Lc 94.5 | Preferred for body text |
| #4A3170 text on black | 1.96:1 | Fails | Lc -8.0 | 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
#ECE7F7
oklch(93.7% 0.022 300.2)
-
Step 200
200
#DDD3F3
oklch(88.5% 0.045 299.7)
-
Step 300
300
#C8B6ED
oklch(81% 0.079 299.6)
-
Step 400
400
#AC8EE4
oklch(70.7% 0.126 299.2)
-
Step 500
500
#996FDC
oklch(63.2% 0.162 299.5)
-
Step 600
600
#8454C9
oklch(55.5% 0.176 299.6)
-
Step 700
700
#7044AE
oklch(49.1% 0.163 299.5)
-
Step 800
800
#5B388D
oklch(42.6% 0.136 299.6)
-
Step 900
900 (this color)
#4A3170
oklch(37.5% 0.106 299.6)
-
Step 950
950
#2C1E42
oklch(27.1% 0.066 300)
#4A3170 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) | #193E72 | 0.074 |
| Deuteranopia (no green cones) | #203E6F | 0.069 |
| Tritanopia (no blue cones) | #423D4B | 0.081 |
| Achromatopsia (no color) | #3E3E3E | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A3170
#4A3170
oklch(37.5% 0.106 299.6)
- #3C4700
#3C4700
oklch(37.5% 0.088 119.2)
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 #4A3170, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Blueberry #464196 ΔE 0.071
- Grape Purple #5D1451 ΔE 0.082
- Indigo #4B0082 ΔE 0.082
- Royal Purple #4B006E ΔE 0.082
- Twilight Blue #0A437A ΔE 0.085
- Rebecca Purple #663399 ΔE 0.086
- Prussian Blue #1D3557 ΔE 0.086
Use #4A3170 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.