#3A4D9E
Closest named color: Blueberry (#464196). oklch(45% 0.133 270.3), rgb(58, 77, 158).
Aa
White text reads best on this color (7.67:1).
About this color
#3A4D9E is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.133 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.034 away. White text reads best on it, at 7.67:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.73:1 |
| White text | 7.67:1 |
Values
| HEX | #3A4D9E |
| RGB | rgb(58, 77, 158) |
| HSL | hsl(229, 46%, 42%) |
| OKLCH | oklch(45% 0.133 270.3) |
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 #3A4D9E | 7.67:1 | AAA | Lc -91.2 | Preferred for body text |
| Black text on #3A4D9E | 2.73:1 | Fails | Lc 17.6 | Dividers and decoration only |
| #3A4D9E text on white | 7.67:1 | AAA | Lc 86.4 | Fine for body text |
| #3A4D9E text on black | 2.73:1 | Fails | Lc -15.7 | 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
#E4EAF9
oklch(93.7% 0.021 268.4)
-
Step 200
200
#CED8F7
oklch(88.4% 0.044 271.3)
-
Step 300
300
#ADBFF4
oklch(81% 0.078 270)
-
Step 400
400
#839CEE
oklch(70.8% 0.124 270.1)
-
Step 500
500
#6581E9
oklch(63.2% 0.159 270)
-
Step 600
600
#4E67D7
oklch(55.5% 0.174 270.4)
-
Step 700
700
#4055BA
oklch(49% 0.16 270.5)
-
Step 800
800 (this color)
#3A4D9E
oklch(45% 0.133 270.3)
-
Step 900
900
#2D3C78
oklch(37.7% 0.104 270.2)
-
Step 950
950
#1A2446
oklch(27.1% 0.065 269.4)
#3A4D9E 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) | #2058A1 | 0.035 |
| Deuteranopia (no green cones) | #054F9C | 0.040 |
| Tritanopia (no blue cones) | #00606E | 0.114 |
| Achromatopsia (no color) | #535353 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A4D9E
#3A4D9E
oklch(45% 0.133 270.3)
- #695200
#695200
oklch(45% 0.092 89.9)
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 #3A4D9E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.034
- Dusk Blue #26538D ΔE 0.040
- Cobalt #1E488F ΔE 0.043
- Twilight #4E518B ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.047
- Dark Slate Blue #483D8B ΔE 0.051
- Light Navy Blue #2E5A88 ΔE 0.057
- Light Navy #155084 ΔE 0.058
Use #3A4D9E 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.