#3B4CAA
Closest named color: Blueberry (#464196). oklch(45.7% 0.151 271.4), rgb(59, 76, 170).
Aa
White text reads best on this color (7.49:1).
About this color
#3B4CAA is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.151 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.042 away. White text reads best on it, at 7.49:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.80:1 |
| White text | 7.49:1 |
Values
| HEX | #3B4CAA |
| RGB | rgb(59, 76, 170) |
| HSL | hsl(231, 48%, 45%) |
| OKLCH | oklch(45.7% 0.151 271.4) |
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 #3B4CAA | 7.49:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #3B4CAA | 2.80:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #3B4CAA text on white | 7.49:1 | AAA | Lc 85.7 | Fine for body text |
| #3B4CAA text on black | 2.80:1 | Fails | Lc -16.3 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E3E9FC
oklch(93.5% 0.027 271.9)
-
Step 200
200
#CDD8FB
oklch(88.5% 0.05 271.6)
-
Step 300
300
#ACBEFA
oklch(80.9% 0.087 271.4)
-
Step 400
400
#819AF8
oklch(70.7% 0.141 271.2)
-
Step 500
500
#647DF5
oklch(63.1% 0.181 271.5)
-
Step 600
600
#4D63E4
oklch(55.7% 0.196 271.2)
-
Step 700
700
#3F51C6
oklch(49.2% 0.182 271.4)
-
Step 800
800 (this color)
#3B4CAA
oklch(45.7% 0.151 271.4)
-
Step 900
900
#2C3A7F
oklch(37.7% 0.117 271.1)
-
Step 950
950
#1A224A
oklch(26.9% 0.075 272)
#3B4CAA 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) | #015AAD | 0.047 |
| Deuteranopia (no green cones) | #0050A8 | 0.041 |
| Tritanopia (no blue cones) | #006273 | 0.126 |
| Achromatopsia (no color) | #555555 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B4CAA
#3B4CAA
oklch(45.7% 0.151 271.4)
- #6A5500
#6A5500
oklch(45.8% 0.094 92.2)
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 #3B4CAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.042
- Cobalt #1E488F ΔE 0.057
- Dusk Blue #26538D ΔE 0.058
- Blue Blue #2242C7 ΔE 0.059
- Twilight #4E518B ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.061
- Sapphire #2138AB ΔE 0.061
- Dark Slate Blue #483D8B ΔE 0.061
Use #3B4CAA 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.