#3B4A9F
Closest named color: Blueberry (#464196). oklch(44.5% 0.138 272.1), rgb(59, 74, 159).
Aa
White text reads best on this color (7.87:1).
About this color
#3B4A9F is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.138 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.028 away. White text reads best on it, at 7.87:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.66:1 |
| White text | 7.87:1 |
Values
| HEX | #3B4A9F |
| RGB | rgb(59, 74, 159) |
| HSL | hsl(231, 46%, 43%) |
| OKLCH | oklch(44.5% 0.138 272.1) |
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 #3B4A9F | 7.87:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #3B4A9F | 2.66:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #3B4A9F text on white | 7.87:1 | AAA | Lc 87.0 | Fine for body text |
| #3B4A9F text on black | 2.66:1 | Fails | Lc -15.1 | Dividers and decoration only |
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
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CED8F8
oklch(88.5% 0.045 271.7)
-
Step 300
300
#AEBEF6
oklch(80.9% 0.081 272.1)
-
Step 400
400
#859AF1
oklch(70.6% 0.13 272.4)
-
Step 500
500
#687FEC
oklch(63.1% 0.165 272)
-
Step 600
600
#5165DA
oklch(55.5% 0.179 272)
-
Step 700
700
#4353BD
oklch(49.1% 0.166 272.3)
-
Step 800
800 (this color)
#3B4A9F
oklch(44.5% 0.138 272.1)
-
Step 900
900
#2F3B7A
oklch(37.8% 0.107 272.2)
-
Step 950
950
#1B2347
oklch(27% 0.068 271.8)
#3B4A9F 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) | #1556A2 | 0.041 |
| Deuteranopia (no green cones) | #004D9D | 0.044 |
| Tritanopia (no blue cones) | #005E6D | 0.118 |
| Achromatopsia (no color) | #515151 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B4A9F
#3B4A9F
oklch(44.5% 0.138 272.1)
- #665200
#665200
oklch(44.6% 0.091 92.5)
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 #3B4A9F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.028
- Cobalt #1E488F ΔE 0.043
- Dusk Blue #26538D ΔE 0.046
- Dark Slate Blue #483D8B ΔE 0.046
- Twilight #4E518B ΔE 0.049
- Denim Blue #3B5B92 ΔE 0.055
- Sapphire #2138AB ΔE 0.061
- Light Navy #155084 ΔE 0.062
Use #3B4A9F 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.