#3D4A99
Closest named color: Blueberry (#464196). oklch(44.2% 0.129 273), rgb(61, 74, 153).
Aa
White text reads best on this color (7.96:1).
About this color
#3D4A99 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.129 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.025 away. White text reads best on it, at 7.96:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.63:1 |
| White text | 7.96:1 |
Values
| HEX | #3D4A99 |
| RGB | rgb(61, 74, 153) |
| HSL | hsl(232, 43%, 42%) |
| OKLCH | oklch(44.2% 0.129 273) |
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 #3D4A99 | 7.96:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #3D4A99 | 2.63:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #3D4A99 text on white | 7.96:1 | AAA | Lc 87.3 | Fine for body text |
| #3D4A99 text on black | 2.63:1 | Fails | Lc -14.8 | Not readable |
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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#D0D8F6
oklch(88.6% 0.042 273.7)
-
Step 300
300
#B0BEF2
oklch(80.9% 0.075 272.9)
-
Step 400
400
#889BEC
oklch(70.8% 0.121 272.9)
-
Step 500
500
#6C80E5
oklch(63.2% 0.153 272.9)
-
Step 600
600
#5567D3
oklch(55.6% 0.166 272.7)
-
Step 700
700
#4655B7
oklch(49.2% 0.155 272.8)
-
Step 800
800 (this color)
#3D4A99
oklch(44.2% 0.129 273)
-
Step 900
900
#313B76
oklch(37.6% 0.101 273.4)
-
Step 950
950
#1C2345
oklch(26.9% 0.064 272.7)
#3D4A99 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) | #1F559C | 0.038 |
| Deuteranopia (no green cones) | #0B4D97 | 0.043 |
| Tritanopia (no blue cones) | #005C6A | 0.113 |
| Achromatopsia (no color) | #515151 | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3D4A99
#3D4A99
oklch(44.2% 0.129 273)
- #645100
#645100
oklch(44.1% 0.09 93.2)
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 #3D4A99, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.025
- Cobalt #1E488F ΔE 0.040
- Dark Slate Blue #483D8B ΔE 0.040
- Dusk Blue #26538D ΔE 0.041
- Twilight #4E518B ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.051
- Light Navy #155084 ΔE 0.056
- Light Navy Blue #2E5A88 ΔE 0.059
Use #3D4A99 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.