#3D3563
Closest named color: Prussian Blue (#1D3557). oklch(36% 0.078 289.9), rgb(61, 53, 99).
Aa
White text reads best on this color (11.12:1).
About this color
#3D3563 is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.078 and its hue 290°. Its hue sits on the cool side of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.053 away. White text reads best on it, at 11.12:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.88:1 |
| White text | 11.12:1 |
Values
| HEX | #3D3563 |
| RGB | rgb(61, 53, 99) |
| HSL | hsl(250, 30%, 30%) |
| OKLCH | oklch(36% 0.078 289.9) |
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 #3D3563 | 11.12:1 | AAA | Lc -99.4 | Preferred for body text |
| Black text on #3D3563 | 1.88:1 | Fails | Lc 8.3 | Not readable |
| #3D3563 text on white | 11.12:1 | AAA | Lc 95.6 | Preferred for body text |
| #3D3563 text on black | 1.88:1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F5
oklch(93.6% 0.017 289.6)
-
Step 200
200
#D8D6EE
oklch(88.5% 0.033 289.5)
-
Step 300
300
#BFBBE5
oklch(80.9% 0.059 289.4)
-
Step 400
400
#9F97D7
oklch(70.7% 0.093 289.5)
-
Step 500
500
#897CCD
oklch(63.2% 0.12 289.9)
-
Step 600
600
#7364B9
oklch(55.6% 0.129 289.6)
-
Step 700
700
#6152A0
oklch(49.1% 0.122 290)
-
Step 800
800
#4F4481
oklch(42.8% 0.099 289.9)
-
Step 900
900 (this color)
#3D3563
oklch(36% 0.078 289.9)
-
Step 950
950
#26223D
oklch(27% 0.049 289.5)
#3D3563 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) | #263C65 | 0.037 |
| Deuteranopia (no green cones) | #263A62 | 0.036 |
| Tritanopia (no blue cones) | #333E47 | 0.065 |
| Achromatopsia (no color) | #3B3B3B | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3563
#3D3563
oklch(36% 0.078 289.9)
- #404001
#404001
oklch(36% 0.078 109.7)
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 #3D3563, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.065
- Marine Blue #01386A ΔE 0.065
- Space Cadet #2B2D42 ΔE 0.069
- Twilight Blue #0A437A ΔE 0.069
- Onyx #343A40 ΔE 0.070
- Gunmetal #293241 ΔE 0.070
Use #3D3563 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.