#3D2B7E
Closest named color: Dark Slate Blue (#483D8B). oklch(36.1% 0.134 287.8), rgb(61, 43, 126).
Aa
White text reads best on this color (11.38:1).
About this color
#3D2B7E is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.134 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.054 away. White text reads best on it, at 11.38:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.134) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.84:1 |
| White text | 11.38:1 |
Values
| HEX | #3D2B7E |
| RGB | rgb(61, 43, 126) |
| HSL | hsl(253, 49%, 33%) |
| OKLCH | oklch(36.1% 0.134 287.8) |
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 #3D2B7E | 11.38:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #3D2B7E | 1.84:1 | Fails | Lc 8.1 | Not readable |
| #3D2B7E text on white | 11.38:1 | AAA | Lc 95.8 | Preferred for body text |
| #3D2B7E text on black | 1.84:1 | Fails | Lc 0.0 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#E8E7FD
oklch(93.5% 0.03 287.9)
-
Step 200
200
#D6D4FD
oklch(88.5% 0.056 287.4)
-
Step 300
300
#BDB7FE
oklch(81% 0.099 287.8)
-
Step 400
400
#9D8EFE
oklch(70.8% 0.16 287.7)
-
Step 500
500
#876CFC
oklch(63.1% 0.206 287.6)
-
Step 600
600
#734EEB
oklch(55.5% 0.223 287.6)
-
Step 700
700
#613DCC
oklch(49% 0.207 287.7)
-
Step 800
800
#4F34A5
oklch(42.7% 0.172 287.8)
-
Step 900
900 (this color)
#3D2B7E
oklch(36.1% 0.134 287.8)
-
Step 950
950
#261D4D
oklch(27.1% 0.085 288)
#3D2B7E 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) | #003C81 | 0.071 |
| Deuteranopia (no green cones) | #00387C | 0.069 |
| Tritanopia (no blue cones) | #263F50 | 0.110 |
| Achromatopsia (no color) | #3A3A3A | 0.134 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D2B7E
#3D2B7E
oklch(36.1% 0.134 287.8)
- #424000
#424000
oklch(36.2% 0.078 107.7)
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 #3D2B7E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.054
- Indigo #4B0082 ΔE 0.063
- Blueberry #464196 ΔE 0.068
- Royal Purple #4B006E ΔE 0.075
- Imperial Purple #480CA8 ΔE 0.079
- Twilight Blue #0A437A ΔE 0.079
- Marine Blue #01386A ΔE 0.081
- Cobalt #1E488F ΔE 0.081
Use #3D2B7E 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.