#3A4EA1
Closest named color: Blueberry (#464196). oklch(45.4% 0.136 270), rgb(58, 78, 161).
Aa
White text reads best on this color (7.54:1).
About this color
#3A4EA1 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.136 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.038 away. White text reads best on it, at 7.54:1.
| Hue family | Blues |
| Lightness | medium-dark (45%) |
| Chroma | moderately saturated (0.136) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.78:1 |
| White text | 7.54:1 |
Values
| HEX | #3A4EA1 |
| RGB | rgb(58, 78, 161) |
| HSL | hsl(228, 47%, 43%) |
| OKLCH | oklch(45.4% 0.136 270) |
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 #3A4EA1 | 7.54:1 | AAA | Lc -90.7 | Preferred for body text |
| Black text on #3A4EA1 | 2.78:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #3A4EA1 text on white | 7.54:1 | AAA | Lc 85.9 | Fine for body text |
| #3A4EA1 text on black | 2.78:1 | Fails | Lc -16.1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E4EAFA
oklch(93.7% 0.023 269.4)
-
Step 200
200
#CED8F7
oklch(88.4% 0.044 271.3)
-
Step 300
300
#ACBFF5
oklch(80.9% 0.079 269.5)
-
Step 400
400
#829CF0
oklch(70.8% 0.127 269.9)
-
Step 500
500
#6480EB
oklch(63% 0.163 270.1)
-
Step 600
600
#4D67D9
oklch(55.6% 0.177 270.1)
-
Step 700
700
#3E55BC
oklch(49.1% 0.164 269.9)
-
Step 800
800 (this color)
#3A4EA1
oklch(45.4% 0.136 270)
-
Step 900
900
#2C3C79
oklch(37.7% 0.105 269.7)
-
Step 950
950
#1A2347
oklch(26.9% 0.068 270.7)
#3A4EA1 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) | #1F59A4 | 0.035 |
| Deuteranopia (no green cones) | #00509F | 0.041 |
| Tritanopia (no blue cones) | #006170 | 0.114 |
| Achromatopsia (no color) | #545454 | 0.136 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A4EA1
#3A4EA1
oklch(45.4% 0.136 270)
- #6A5300
#6A5300
oklch(45.3% 0.093 90.1)
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 #3A4EA1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.038
- Dusk Blue #26538D ΔE 0.043
- Cobalt #1E488F ΔE 0.047
- Twilight #4E518B ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.047
- Dark Slate Blue #483D8B ΔE 0.055
- Light Navy Blue #2E5A88 ΔE 0.059
- Dusky Blue #475F94 ΔE 0.059
Use #3A4EA1 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.