#3D3D91
Closest named color: Blueberry (#464196). oklch(41% 0.135 278.6), rgb(61, 61, 145).
Aa
White text reads best on this color (9.23:1).
About this color
#3D3D91 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.135 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.020 away. White text reads best on it, at 9.23:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.135) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.27:1 |
| White text | 9.23:1 |
Values
| HEX | #3D3D91 |
| RGB | rgb(61, 61, 145) |
| HSL | hsl(240, 41%, 40%) |
| OKLCH | oklch(41% 0.135 278.6) |
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 #3D3D91 | 9.23:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #3D3D91 | 2.27:1 | Fails | Lc 13.0 | Not readable |
| #3D3D91 text on white | 9.23:1 | AAA | Lc 91.0 | Preferred for body text |
| #3D3D91 text on black | 2.27:1 | Fails | Lc -11.4 | 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 800.
-
Step 50
50
#F4F5FD
oklch(97.2% 0.011 280.5)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D2D7F7
oklch(88.5% 0.044 278.4)
-
Step 300
300
#B5BCF4
oklch(80.9% 0.079 278.9)
-
Step 400
400
#8F97EE
oklch(70.6% 0.127 278.6)
-
Step 500
500
#767BE8
oklch(63.1% 0.161 278.7)
-
Step 600
600
#6061D7
oklch(55.5% 0.177 278.6)
-
Step 700
700
#5050BA
oklch(49.1% 0.163 278.6)
-
Step 800
800 (this color)
#3D3D91
oklch(41% 0.135 278.6)
-
Step 900
900
#373978
oklch(37.8% 0.105 278.7)
-
Step 950
950
#202246
oklch(27.1% 0.066 278.6)
#3D3D91 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) | #004B94 | 0.057 |
| Deuteranopia (no green cones) | #00448F | 0.054 |
| Tritanopia (no blue cones) | #0E5161 | 0.117 |
| Achromatopsia (no color) | #474747 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D3D91
#3D3D91
oklch(41% 0.135 278.6)
- #564A00
#564A00
oklch(40.9% 0.085 98.6)
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 #3D3D91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.020
- Dark Slate Blue #483D8B ΔE 0.020
- Cobalt #1E488F ΔE 0.043
- Sapphire #2138AB ΔE 0.058
- Dusk Blue #26538D ΔE 0.063
- Twilight #4E518B ΔE 0.065
- Twilight Blue #0A437A ΔE 0.067
- Light Navy #155084 ΔE 0.068
Use #3D3D91 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.