#45377E
Closest named color: Dark Slate Blue (#483D8B). oklch(39.1% 0.115 289), rgb(69, 55, 126).
Aa
White text reads best on this color (9.99:1).
About this color
#45377E is a dark, moderately saturated purple. In OKLCH its lightness is 39%, its chroma 0.115 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.026 away. White text reads best on it, at 9.99:1.
| Hue family | Purples |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.10:1 |
| White text | 9.99:1 |
Values
| HEX | #45377E |
| RGB | rgb(69, 55, 126) |
| HSL | hsl(252, 39%, 35%) |
| OKLCH | oklch(39.1% 0.115 289) |
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 #45377E | 9.99:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #45377E | 2.10:1 | Fails | Lc 11.0 | Not readable |
| #45377E text on white | 9.99:1 | AAA | Lc 93.0 | Preferred for body text |
| #45377E text on black | 2.10:1 | Fails | Lc -9.5 | 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
#D7D5F8
oklch(88.6% 0.048 288)
-
Step 300
300
#BEB8F6
oklch(80.9% 0.087 288.7)
-
Step 400
400
#9F91F1
oklch(70.8% 0.138 289.1)
-
Step 500
500
#8972EC
oklch(63.2% 0.177 289)
-
Step 600
600
#7456DA
oklch(55.5% 0.193 289)
-
Step 700
700
#6246BD
oklch(49.2% 0.178 289)
-
Step 800
800
#503A99
oklch(42.7% 0.148 289.2)
-
Step 900
900 (this color)
#45377E
oklch(39.1% 0.115 289)
-
Step 950
950
#261F47
oklch(27% 0.072 288.7)
#45377E 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) | #134480 | 0.065 |
| Deuteranopia (no green cones) | #14417C | 0.064 |
| Tritanopia (no blue cones) | #344655 | 0.094 |
| Achromatopsia (no color) | #424242 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45377E
#45377E
oklch(39.1% 0.115 289)
- #494800
#494800
oklch(39% 0.084 108.8)
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 #45377E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.026
- Blueberry #464196 ΔE 0.045
- Cobalt #1E488F ΔE 0.065
- Twilight Blue #0A437A ΔE 0.071
- Twilight #4E518B ΔE 0.074
- Rebecca Purple #663399 ΔE 0.075
- Light Navy #155084 ΔE 0.081
- Dusk Blue #26538D ΔE 0.082
Use #45377E 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.