#3B3896
Closest named color: Blueberry (#464196). oklch(40.3% 0.149 278.7), rgb(59, 56, 150).
Aa
White text reads best on this color (9.58:1).
About this color
#3B3896 is a dark, vivid blue. In OKLCH its lightness is 40%, its chroma 0.149 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.030 away. White text reads best on it, at 9.58:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.19:1 |
| White text | 9.58:1 |
Values
| HEX | #3B3896 |
| RGB | rgb(59, 56, 150) |
| HSL | hsl(242, 46%, 40%) |
| OKLCH | oklch(40.3% 0.149 278.7) |
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 #3B3896 | 9.58:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #3B3896 | 2.19:1 | Fails | Lc 12.2 | Not readable |
| #3B3896 text on white | 9.58:1 | AAA | Lc 91.8 | Preferred for body text |
| #3B3896 text on black | 2.19:1 | Fails | Lc -10.6 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9FB
oklch(93.7% 0.024 278.4)
-
Step 200
200
#D1D7FA
oklch(88.6% 0.049 277.7)
-
Step 300
300
#B4BBF9
oklch(80.9% 0.088 279.2)
-
Step 400
400
#8E96F6
oklch(70.7% 0.14 278.6)
-
Step 500
500
#7578F2
oklch(63.1% 0.179 278.9)
-
Step 600
600
#605EE1
oklch(55.7% 0.194 278.7)
-
Step 700
700
#4F4CC3
oklch(49.1% 0.18 278.5)
-
Step 800
800 (this color)
#3B3896
oklch(40.3% 0.149 278.7)
-
Step 900
900
#36377D
oklch(37.7% 0.116 278.7)
-
Step 950
950
#1F2149
oklch(27% 0.073 278.2)
#3B3896 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) | #004999 | 0.059 |
| Deuteranopia (no green cones) | #004194 | 0.053 |
| Tritanopia (no blue cones) | #004F61 | 0.128 |
| Achromatopsia (no color) | #454545 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B3896
#3B3896
oklch(40.3% 0.149 278.7)
- #544800
#544800
oklch(40.2% 0.083 98.3)
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 #3B3896, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.030
- Dark Slate Blue #483D8B ΔE 0.032
- Sapphire #2138AB ΔE 0.047
- Cobalt #1E488F ΔE 0.051
- Indigo Blue #3A18B1 ΔE 0.067
- Imperial Purple #480CA8 ΔE 0.071
- Twilight Blue #0A437A ΔE 0.074
- Dusk Blue #26538D ΔE 0.076
Use #3B3896 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.