#3D3764
Closest named color: Prussian Blue (#1D3557). oklch(36.5% 0.076 288.1), rgb(61, 55, 100).
Aa
White text reads best on this color (10.88:1).
About this color
#3D3764 is a dark, moderately saturated purple. In OKLCH its lightness is 37%, its chroma 0.076 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.054 away. White text reads best on it, at 10.88:1.
| Hue family | Purples |
| Lightness | dark (37%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.92:1 |
| White text | 10.88:1 |
Values
| HEX | #3D3764 |
| RGB | rgb(61, 55, 100) |
| HSL | hsl(248, 29%, 30%) |
| OKLCH | oklch(36.5% 0.076 288.1) |
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 #3D3764 | 10.88:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #3D3764 | 1.92:1 | Fails | Lc 8.8 | Not readable |
| #3D3764 text on white | 10.88:1 | AAA | Lc 95.1 | Preferred for body text |
| #3D3764 text on black | 1.92:1 | Fails | Lc -7.5 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D7D6EE
oklch(88.4% 0.033 287.6)
-
Step 300
300
#BEBBE4
oklch(80.8% 0.057 288.4)
-
Step 400
400
#9E98D7
oklch(70.8% 0.091 288.2)
-
Step 500
500
#877DCC
oklch(63.2% 0.117 288.4)
-
Step 600
600
#7165B9
oklch(55.7% 0.127 288.1)
-
Step 700
700
#5F539F
oklch(49.1% 0.119 288.5)
-
Step 800
800
#4D4581
oklch(42.8% 0.097 287.7)
-
Step 900
900 (this color)
#3D3764
oklch(36.5% 0.076 288.1)
-
Step 950
950
#25223D
oklch(26.9% 0.05 287.7)
#3D3764 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) | #283E66 | 0.035 |
| Deuteranopia (no green cones) | #283C63 | 0.033 |
| Tritanopia (no blue cones) | #334048 | 0.065 |
| Achromatopsia (no color) | #3D3D3D | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3764
#3D3764
oklch(36.5% 0.076 288.1)
- #434104
#434104
oklch(36.6% 0.076 107.6)
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 #3D3764, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.058
- Dark Blue Grey #1F3B4D ΔE 0.064
- Marine Blue #01386A ΔE 0.065
- Twilight Blue #0A437A ΔE 0.066
- Charcoal #264653 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.069
- Onyx #343A40 ΔE 0.069
Use #3D3764 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.