#45397F
Closest named color: Dark Slate Blue (#483D8B). oklch(39.5% 0.114 287.9), rgb(69, 57, 127).
Aa
White text reads best on this color (9.79:1).
About this color
#45397F is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.114 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.022 away. White text reads best on it, at 9.79:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.114) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.14:1 |
| White text | 9.79:1 |
Values
| HEX | #45397F |
| RGB | rgb(69, 57, 127) |
| HSL | hsl(250, 38%, 36%) |
| OKLCH | oklch(39.5% 0.114 287.9) |
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 #45397F | 9.79:1 | AAA | Lc -96.7 | Preferred for body text |
| Black text on #45397F | 2.14:1 | Fails | Lc 11.5 | Not readable |
| #45397F text on white | 9.79:1 | AAA | Lc 92.5 | Preferred for body text |
| #45397F text on black | 2.14:1 | Fails | Lc -9.9 | 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
#E8E8FA
oklch(93.6% 0.024 285.9)
-
Step 200
200
#D7D5F8
oklch(88.6% 0.048 288)
-
Step 300
300
#BDB8F5
oklch(80.8% 0.086 288.1)
-
Step 400
400
#9D91F0
oklch(70.6% 0.137 288.2)
-
Step 500
500
#8773EB
oklch(63.1% 0.174 288)
-
Step 600
600
#7258D9
oklch(55.6% 0.189 287.9)
-
Step 700
700
#6047BD
oklch(49.1% 0.177 287.8)
-
Step 800
800
#4E3B99
oklch(42.7% 0.147 287.8)
-
Step 900
900 (this color)
#45397F
oklch(39.5% 0.114 287.9)
-
Step 950
950
#251F47
oklch(26.9% 0.072 287.4)
#45397F 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) | #174581 | 0.061 |
| Deuteranopia (no green cones) | #17427D | 0.060 |
| Tritanopia (no blue cones) | #334856 | 0.095 |
| Achromatopsia (no color) | #444444 | 0.114 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45397F
#45397F
oklch(39.5% 0.114 287.9)
- #4B4900
#4B4900
oklch(39.4% 0.085 107.9)
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 #45397F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.022
- Blueberry #464196 ΔE 0.042
- Cobalt #1E488F ΔE 0.062
- Twilight Blue #0A437A ΔE 0.069
- Twilight #4E518B ΔE 0.069
- Rebecca Purple #663399 ΔE 0.074
- Dusk Blue #26538D ΔE 0.077
- Light Navy #155084 ΔE 0.077
Use #45397F 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.