#45398C
Closest named color: Dark Slate Blue (#483D8B). oklch(40.5% 0.132 285.4), rgb(69, 57, 140).
Aa
White text reads best on this color (9.47:1).
About this color
#45398C is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.132 and its hue 285°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.012 away. White text reads best on it, at 9.47:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.21:1 |
| White text | 9.47:1 |
Values
| HEX | #45398C |
| RGB | rgb(69, 57, 140) |
| HSL | hsl(249, 42%, 39%) |
| OKLCH | oklch(40.5% 0.132 285.4) |
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 #45398C | 9.47:1 | AAA | Lc -95.9 | Preferred for body text |
| Black text on #45398C | 2.21:1 | Fails | Lc 12.4 | Not readable |
| #45398C text on white | 9.47:1 | AAA | Lc 91.6 | Preferred for body text |
| #45398C text on black | 2.21:1 | Fails | Lc -10.8 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E8E8F9
oklch(93.6% 0.023 286)
-
Step 200
200
#D6D6F5
oklch(88.6% 0.042 285.5)
-
Step 300
300
#BBBAF1
oklch(80.9% 0.077 285.4)
-
Step 400
400
#9A94EA
oklch(70.6% 0.124 285.9)
-
Step 500
500
#8278E4
oklch(63.2% 0.158 285.1)
-
Step 600
600
#6D5ED2
oklch(55.6% 0.172 285.2)
-
Step 700
700
#5C4CB6
oklch(49.1% 0.161 285.7)
-
Step 800
800 (this color)
#45398C
oklch(40.5% 0.132 285.4)
-
Step 900
900
#3E3775
oklch(37.8% 0.103 285.5)
-
Step 950
950
#242145
oklch(27.1% 0.065 285)
#45398C 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) | #00488F | 0.070 |
| Deuteranopia (no green cones) | #00438A | 0.069 |
| Tritanopia (no blue cones) | #2C4C5D | 0.110 |
| Achromatopsia (no color) | #464646 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45398C
#45398C
oklch(40.5% 0.132 285.4)
- #504B00
#504B00
oklch(40.5% 0.086 105.2)
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 #45398C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.012
- Blueberry #464196 ΔE 0.025
- Cobalt #1E488F ΔE 0.057
- Rebecca Purple #663399 ΔE 0.064
- Twilight #4E518B ΔE 0.068
- Sapphire #2138AB ΔE 0.071
- Dusk Blue #26538D ΔE 0.075
- Twilight Blue #0A437A ΔE 0.075
Use #45398C 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.