#3A4C92
Closest named color: Dusk Blue (#26538D). oklch(43.9% 0.117 270.2), rgb(58, 76, 146).
Aa
White text reads best on this color (7.98:1).
About this color
#3A4C92 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.117 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.029 away. White text reads best on it, at 7.98:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.62:1 |
| White text | 7.98:1 |
Values
| HEX | #3A4C92 |
| RGB | rgb(58, 76, 146) |
| HSL | hsl(228, 43%, 40%) |
| OKLCH | oklch(43.9% 0.117 270.2) |
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 #3A4C92 | 7.98:1 | AAA | Lc -92.2 | Preferred for body text |
| Black text on #3A4C92 | 2.62:1 | Fails | Lc 16.5 | Dividers and decoration only |
| #3A4C92 text on white | 7.98:1 | AAA | Lc 87.5 | Fine for body text |
| #3A4C92 text on black | 2.62:1 | Fails | Lc -14.7 | 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
#E5EAF8
oklch(93.7% 0.02 270.2)
-
Step 200
200
#CFD9F3
oklch(88.6% 0.037 268.9)
-
Step 300
300
#AFBFEE
oklch(80.9% 0.069 270.1)
-
Step 400
400
#869DE5
oklch(70.7% 0.109 269.9)
-
Step 500
500
#6983DD
oklch(63.1% 0.139 269.9)
-
Step 600
600
#526ACB
oklch(55.5% 0.152 270.3)
-
Step 700
700
#4358B0
oklch(49.1% 0.142 270.3)
-
Step 800
800 (this color)
#3A4C92
oklch(43.9% 0.117 270.2)
-
Step 900
900
#2F3D72
oklch(37.6% 0.092 270.3)
-
Step 950
950
#1C2442
oklch(26.9% 0.057 270.9)
#3A4C92 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) | #2A5595 | 0.028 |
| Deuteranopia (no green cones) | #1D4D91 | 0.029 |
| Tritanopia (no blue cones) | #005C68 | 0.103 |
| Achromatopsia (no color) | #515151 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3A4C92
#3A4C92
oklch(43.9% 0.117 270.2)
- #654F00
#654F00
oklch(43.8% 0.09 90.2)
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 #3A4C92, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.029
- Blueberry #464196 ΔE 0.033
- Cobalt #1E488F ΔE 0.034
- Twilight #4E518B ΔE 0.036
- Dark Slate Blue #483D8B ΔE 0.042
- Denim Blue #3B5B92 ΔE 0.043
- Light Navy #155084 ΔE 0.044
- Light Navy Blue #2E5A88 ΔE 0.047
Use #3A4C92 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.