#413579
Closest named color: Dark Slate Blue (#483D8B). oklch(37.9% 0.111 288), rgb(65, 53, 121).
Aa
White text reads best on this color (10.44:1).
About this color
#413579 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.111 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.038 away. White text reads best on it, at 10.44:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.01:1 |
| White text | 10.44:1 |
Values
| HEX | #413579 |
| RGB | rgb(65, 53, 121) |
| HSL | hsl(251, 39%, 34%) |
| OKLCH | oklch(37.9% 0.111 288) |
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 #413579 | 10.44:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #413579 | 2.01:1 | Fails | Lc 9.9 | Not readable |
| #413579 text on white | 10.44:1 | AAA | Lc 94.0 | Preferred for body text |
| #413579 text on black | 2.01:1 | Fails | Lc -8.5 | 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 900.
-
Step 50
50
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#E9E8FA
oklch(93.7% 0.024 288.5)
-
Step 200
200
#D7D5F7
oklch(88.5% 0.047 288.1)
-
Step 300
300
#BDB9F4
oklch(81% 0.083 287.5)
-
Step 400
400
#9D92EF
oklch(70.7% 0.134 287.9)
-
Step 500
500
#8774E9
oklch(63.2% 0.17 288)
-
Step 600
600
#7259D7
oklch(55.6% 0.185 288)
-
Step 700
700
#6048BB
oklch(49.1% 0.173 287.9)
-
Step 800
800
#4E3C97
oklch(42.7% 0.143 287.9)
-
Step 900
900 (this color)
#413579
oklch(37.9% 0.111 288)
-
Step 950
950
#251F46
oklch(26.9% 0.07 287.8)
#413579 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) | #13417B | 0.061 |
| Deuteranopia (no green cones) | #133E78 | 0.059 |
| Tritanopia (no blue cones) | #304451 | 0.094 |
| Achromatopsia (no color) | #404040 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #413579
#413579
oklch(37.9% 0.111 288)
- #474500
#474500
oklch(38% 0.082 107.9)
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 #413579, 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 0.056
- Twilight Blue #0A437A ΔE 0.067
- Cobalt #1E488F ΔE 0.068
- Marine Blue #01386A ΔE 0.077
- Prussian Blue #1D3557 ΔE 0.082
- Light Navy #155084 ΔE 0.083
- Twilight #4E518B ΔE 0.084
Use #413579 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.