#3B4197
Closest named color: Blueberry (#464196). oklch(42.1% 0.139 275.7), rgb(59, 65, 151).
Aa
White text reads best on this color (8.79:1).
About this color
#3B4197 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.139 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.017 away. White text reads best on it, at 8.79:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.139) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.38:1 |
| White text | 8.79:1 |
Values
| HEX | #3B4197 |
| RGB | rgb(59, 65, 151) |
| HSL | hsl(236, 44%, 41%) |
| OKLCH | oklch(42.1% 0.139 275.7) |
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 #3B4197 | 8.79:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #3B4197 | 2.38:1 | Fails | Lc 14.2 | Not readable |
| #3B4197 text on white | 8.79:1 | AAA | Lc 89.8 | Fine for body text |
| #3B4197 text on black | 2.38:1 | Fails | Lc -12.5 | 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 800.
-
Step 50
50
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D0D7F8
oklch(88.4% 0.046 276)
-
Step 300
300
#B2BDF5
oklch(80.9% 0.08 275.8)
-
Step 400
400
#8A99F1
oklch(70.8% 0.13 275.2)
-
Step 500
500
#707CEC
oklch(63.1% 0.167 275.9)
-
Step 600
600
#5A63DA
oklch(55.7% 0.179 275.7)
-
Step 700
700
#4A51BD
oklch(49.1% 0.167 275.6)
-
Step 800
800 (this color)
#3B4197
oklch(42.1% 0.139 275.7)
-
Step 900
900
#33397A
oklch(37.6% 0.109 275.9)
-
Step 950
950
#1E2247
oklch(27% 0.068 276.2)
#3B4197 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) | #004F9A | 0.053 |
| Deuteranopia (no green cones) | #004795 | 0.048 |
| Tritanopia (no blue cones) | #005565 | 0.120 |
| Achromatopsia (no color) | #4B4B4B | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B4197
#3B4197
oklch(42.1% 0.139 275.7)
- #5C4C00
#5C4C00
oklch(42% 0.086 95.1)
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 #3B4197, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.017
- Dark Slate Blue #483D8B ΔE 0.028
- Cobalt #1E488F ΔE 0.038
- Sapphire #2138AB ΔE 0.052
- Dusk Blue #26538D ΔE 0.056
- Twilight #4E518B ΔE 0.060
- Light Navy #155084 ΔE 0.064
- Twilight Blue #0A437A ΔE 0.070
Use #3B4197 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.