#45317B
Closest named color: Dark Slate Blue (#483D8B). oklch(37.7% 0.121 292.1), rgb(69, 49, 123).
Aa
White text reads best on this color (10.61:1).
About this color
#45317B is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.121 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.039 away. White text reads best on it, at 10.61:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.121) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.97:1 |
| White text | 10.61:1 |
Values
| HEX | #45317B |
| RGB | rgb(69, 49, 123) |
| HSL | hsl(256, 43%, 34%) |
| OKLCH | oklch(37.7% 0.121 292.1) |
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 #45317B | 10.61:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #45317B | 1.97:1 | Fails | Lc 9.6 | Not readable |
| #45317B text on white | 10.61:1 | AAA | Lc 94.3 | Preferred for body text |
| #45317B text on black | 1.97:1 | Fails | Lc -8.3 | 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
#EAE7FA
oklch(93.6% 0.026 293.1)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C1B6F7
oklch(80.8% 0.091 292)
-
Step 400
400
#A38EF2
oklch(70.7% 0.144 292)
-
Step 500
500
#8F6EEE
oklch(63.2% 0.185 292.1)
-
Step 600
600
#7A52DC
oklch(55.6% 0.2 291.9)
-
Step 700
700
#6741BF
oklch(49% 0.187 291.9)
-
Step 800
800
#54379A
oklch(42.7% 0.154 292.1)
-
Step 900
900 (this color)
#45317B
oklch(37.7% 0.121 292.1)
-
Step 950
950
#281D48
oklch(26.9% 0.077 292.2)
#45317B 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) | #03407D | 0.077 |
| Deuteranopia (no green cones) | #0A3D79 | 0.074 |
| Tritanopia (no blue cones) | #364151 | 0.097 |
| Achromatopsia (no color) | #3E3E3E | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45317B
#45317B
oklch(37.7% 0.121 292.1)
- #434600
#434600
oklch(37.9% 0.084 112.5)
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 #45317B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.039
- Blueberry #464196 ΔE 0.058
- Indigo #4B0082 ΔE 0.074
- Cobalt #1E488F ΔE 0.077
- Twilight Blue #0A437A ΔE 0.078
- Rebecca Purple #663399 ΔE 0.079
- Royal Purple #4B006E ΔE 0.083
- Marine Blue #01386A ΔE 0.086
Use #45317B 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.