#3D3B68
Closest named color: Dark Grey Blue (#29465B). oklch(37.6% 0.076 284.2), rgb(61, 59, 104).
Aa
White text reads best on this color (10.37:1).
About this color
#3D3B68 is a dark, moderately saturated purple. In OKLCH its lightness is 38%, its chroma 0.076 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.052 away. White text reads best on it, at 10.37:1.
| Hue family | Purples |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.02:1 |
| White text | 10.37:1 |
Values
| HEX | #3D3B68 |
| RGB | rgb(61, 59, 104) |
| HSL | hsl(243, 28%, 32%) |
| OKLCH | oklch(37.6% 0.076 284.2) |
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 #3D3B68 | 10.37:1 | AAA | Lc -98.0 | Preferred for body text |
| Black text on #3D3B68 | 2.02:1 | Fails | Lc 9.9 | Not readable |
| #3D3B68 text on white | 10.37:1 | AAA | Lc 94.0 | Preferred for body text |
| #3D3B68 text on black | 2.02:1 | Fails | Lc -8.5 | 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
#F5F5FB
oklch(97.2% 0.008 286.3)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D6D7EE
oklch(88.5% 0.031 283.8)
-
Step 300
300
#BCBCE5
oklch(80.9% 0.058 285)
-
Step 400
400
#9999D8
oklch(70.7% 0.092 283.8)
-
Step 500
500
#817FCD
oklch(63.1% 0.116 283.7)
-
Step 600
600
#6C67BA
oklch(55.7% 0.126 284.2)
-
Step 700
700
#5A55A0
oklch(49.1% 0.117 284.2)
-
Step 800
800
#494682
oklch(42.7% 0.097 283.7)
-
Step 900
900 (this color)
#3D3B68
oklch(37.6% 0.076 284.2)
-
Step 950
950
#24233D
oklch(27.1% 0.048 284.5)
#3D3B68 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) | #2C416A | 0.028 |
| Deuteranopia (no green cones) | #2A3F67 | 0.029 |
| Tritanopia (no blue cones) | #31444C | 0.066 |
| Achromatopsia (no color) | #404040 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3B68
#3D3B68
oklch(37.6% 0.076 284.2)
- #484306
#484306
oklch(37.6% 0.076 104.4)
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 #3D3B68, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.052
- Twilight Blue #0A437A ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.060
- Dark Slate Blue #483D8B ΔE 0.062
- Charcoal #264653 ΔE 0.064
- Marine Blue #01386A ΔE 0.066
- Dark Blue Grey #1F3B4D ΔE 0.066
- Onyx #343A40 ΔE 0.073
Use #3D3B68 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.