#45337C
Closest named color: Dark Slate Blue (#483D8B). oklch(38.2% 0.119 291.1), rgb(69, 51, 124).
Aa
White text reads best on this color (10.40:1).
About this color
#45337C is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.119 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.035 away. White text reads best on it, at 10.40:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.119) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.01:1 |
| White text | 10.40:1 |
Values
| HEX | #45337C |
| RGB | rgb(69, 51, 124) |
| HSL | hsl(255, 42%, 34%) |
| OKLCH | oklch(38.2% 0.119 291.1) |
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 #45337C | 10.40:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #45337C | 2.01:1 | Fails | Lc 10.0 | Not readable |
| #45337C text on white | 10.40:1 | AAA | Lc 93.9 | Preferred for body text |
| #45337C text on black | 2.01:1 | Fails | Lc -8.7 | 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
#E9E7FA
oklch(93.5% 0.026 290.7)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C0B7F6
oklch(80.9% 0.088 290.8)
-
Step 400
400
#A28FF2
oklch(70.8% 0.142 291.1)
-
Step 500
500
#8D6FED
oklch(63.1% 0.182 291.2)
-
Step 600
600
#7853DB
oklch(55.5% 0.198 291.1)
-
Step 700
700
#6643BE
oklch(49.2% 0.183 291.3)
-
Step 800
800
#53389A
oklch(42.8% 0.152 291.3)
-
Step 900
900 (this color)
#45337C
oklch(38.2% 0.119 291.1)
-
Step 950
950
#271E48
oklch(27% 0.075 290.3)
#45337C 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) | #09417E | 0.073 |
| Deuteranopia (no green cones) | #0E3E7A | 0.070 |
| Tritanopia (no blue cones) | #354352 | 0.097 |
| Achromatopsia (no color) | #404040 | 0.119 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #45337C
#45337C
oklch(38.2% 0.119 291.1)
- #454600
#454600
oklch(38.1% 0.083 110.7)
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 #45337C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.035
- Blueberry #464196 ΔE 0.053
- Cobalt #1E488F ΔE 0.073
- Twilight Blue #0A437A ΔE 0.075
- Rebecca Purple #663399 ΔE 0.078
- Indigo #4B0082 ΔE 0.079
- Twilight #4E518B ΔE 0.085
- Marine Blue #01386A ΔE 0.086
Use #45337C 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.