#3D3864
Closest named color: Prussian Blue (#1D3557). oklch(36.7% 0.074 287.4), rgb(61, 56, 100).
Aa
White text reads best on this color (10.77:1).
About this color
#3D3864 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.074 and its hue 287°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.055 away. White text reads best on it, at 10.77:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.94:1 |
| White text | 10.77:1 |
Values
| HEX | #3D3864 |
| RGB | rgb(61, 56, 100) |
| HSL | hsl(247, 28%, 31%) |
| OKLCH | oklch(36.7% 0.074 287.4) |
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 #3D3864 | 10.77:1 | AAA | Lc -98.8 | Preferred for body text |
| Black text on #3D3864 | 1.94:1 | Fails | Lc 9.0 | Not readable |
| #3D3864 text on white | 10.77:1 | AAA | Lc 94.9 | Preferred for body text |
| #3D3864 text on black | 1.94:1 | Fails | Lc -7.7 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F4
oklch(93.5% 0.016 289.9)
-
Step 200
200
#D7D6ED
oklch(88.4% 0.031 287.7)
-
Step 300
300
#BEBCE4
oklch(81% 0.056 287.4)
-
Step 400
400
#9D98D6
oklch(70.7% 0.09 287.6)
-
Step 500
500
#867ECB
oklch(63.2% 0.114 287.4)
-
Step 600
600
#7066B7
oklch(55.6% 0.123 287.4)
-
Step 700
700
#5E549E
oklch(49.1% 0.116 287.6)
-
Step 800
800
#4C4580
oklch(42.6% 0.096 287)
-
Step 900
900 (this color)
#3D3864
oklch(36.7% 0.074 287.4)
-
Step 950
950
#25233C
oklch(27.1% 0.046 286.6)
#3D3864 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) | #293F66 | 0.033 |
| Deuteranopia (no green cones) | #293C63 | 0.031 |
| Tritanopia (no blue cones) | #334049 | 0.062 |
| Achromatopsia (no color) | #3D3D3D | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3864
#3D3864
oklch(36.7% 0.074 287.4)
- #444107
#444107
oklch(36.7% 0.074 106.4)
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 #3D3864, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.055
- Dark Blue Grey #1F3B4D ΔE 0.063
- Twilight Blue #0A437A ΔE 0.065
- Marine Blue #01386A ΔE 0.065
- Charcoal #264653 ΔE 0.066
- Onyx #343A40 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.069
Use #3D3864 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.