#3B4EA4
Closest named color: Blueberry (#464196). oklch(45.7% 0.14 270.6), rgb(59, 78, 164).
Aa
White text reads best on this color (7.46:1).
About this color
#3B4EA4 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.140 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.039 away. White text reads best on it, at 7.46:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.140) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.81:1 |
| White text | 7.46:1 |
Values
| HEX | #3B4EA4 |
| RGB | rgb(59, 78, 164) |
| HSL | hsl(229, 47%, 44%) |
| OKLCH | oklch(45.7% 0.14 270.6) |
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 #3B4EA4 | 7.46:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #3B4EA4 | 2.81:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #3B4EA4 text on white | 7.46:1 | AAA | Lc 85.7 | Fine for body text |
| #3B4EA4 text on black | 2.81:1 | Fails | Lc -16.4 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CDD8F8
oklch(88.4% 0.046 270.4)
-
Step 300
300
#ACBEF6
oklch(80.8% 0.082 270.7)
-
Step 400
400
#829BF2
oklch(70.7% 0.131 270.6)
-
Step 500
500
#647FED
oklch(63% 0.167 270.6)
-
Step 600
600
#4D66DC
oklch(55.6% 0.182 270.4)
-
Step 700
700
#3F54BF
oklch(49.2% 0.169 270.6)
-
Step 800
800 (this color)
#3B4EA4
oklch(45.7% 0.14 270.6)
-
Step 900
900
#2C3B7B
oklch(37.7% 0.11 270.4)
-
Step 950
950
#1A2348
oklch(27% 0.07 270.8)
#3B4EA4 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) | #1B5AA7 | 0.038 |
| Deuteranopia (no green cones) | #0050A2 | 0.042 |
| Tritanopia (no blue cones) | #006271 | 0.119 |
| Achromatopsia (no color) | #555555 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B4EA4
#3B4EA4
oklch(45.7% 0.14 270.6)
- #6B5400
#6B5400
oklch(45.7% 0.093 90.3)
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 #3B4EA4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.039
- Dusk Blue #26538D ΔE 0.048
- Twilight #4E518B ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.050
- Cobalt #1E488F ΔE 0.051
- Dark Slate Blue #483D8B ΔE 0.058
- Dusky Blue #475F94 ΔE 0.061
- Light Navy Blue #2E5A88 ΔE 0.063
Use #3B4EA4 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.