#3D4EA3
Closest named color: Blueberry (#464196). oklch(45.7% 0.138 271.4), rgb(61, 78, 163).
Aa
White text reads best on this color (7.45:1).
About this color
#3D4EA3 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.138 and its hue 271°. 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 7.45:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.81:1 |
| White text | 7.45:1 |
Values
| HEX | #3D4EA3 |
| RGB | rgb(61, 78, 163) |
| HSL | hsl(230, 46%, 44%) |
| OKLCH | oklch(45.7% 0.138 271.4) |
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 #3D4EA3 | 7.45:1 | AAA | Lc -90.5 | Preferred for body text |
| Black text on #3D4EA3 | 2.81:1 | Fails | Lc 18.4 | Dividers and decoration only |
| #3D4EA3 text on white | 7.45:1 | AAA | Lc 85.6 | Fine for body text |
| #3D4EA3 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
#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
#ADBEF6
oklch(80.8% 0.082 271.4)
-
Step 400
400
#849BF1
oklch(70.8% 0.129 271.4)
-
Step 500
500
#677FEC
oklch(63.1% 0.165 271.6)
-
Step 600
600
#5066DA
oklch(55.7% 0.178 271.4)
-
Step 700
700
#4154BD
oklch(49.1% 0.166 271.3)
-
Step 800
800 (this color)
#3D4EA3
oklch(45.7% 0.138 271.4)
-
Step 900
900
#2E3B7A
oklch(37.7% 0.108 271.6)
-
Step 950
950
#1B2347
oklch(27% 0.068 271.8)
#3D4EA3 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) | #1D5AA6 | 0.039 |
| Deuteranopia (no green cones) | #0051A1 | 0.044 |
| Tritanopia (no blue cones) | #006271 | 0.118 |
| Achromatopsia (no color) | #555555 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D4EA3
#3D4EA3
oklch(45.7% 0.138 271.4)
- #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 #3D4EA3, 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 0.047
- Twilight #4E518B ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.049
- Cobalt #1E488F ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.056
- Dusky Blue #475F94 ΔE 0.060
- Light Navy Blue #2E5A88 ΔE 0.062
Use #3D4EA3 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.