#404090
Closest named color: Blueberry (#464196). oklch(41.7% 0.129 279.2), rgb(64, 64, 144).
Aa
White text reads best on this color (8.92:1).
About this color
#404090 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.129 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.014 away. White text reads best on it, at 8.92:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.129) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.35:1 |
| White text | 8.92:1 |
Values
| HEX | #404090 |
| RGB | rgb(64, 64, 144) |
| HSL | hsl(240, 38%, 41%) |
| OKLCH | oklch(41.7% 0.129 279.2) |
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 #404090 | 8.92:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #404090 | 2.35:1 | Fails | Lc 13.8 | Not readable |
| #404090 text on white | 8.92:1 | AAA | Lc 90.2 | Preferred for body text |
| #404090 text on black | 2.35:1 | Fails | Lc -12.1 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D3D7F5
oklch(88.5% 0.041 279.5)
-
Step 300
300
#B6BCF1
oklch(80.9% 0.075 279.5)
-
Step 400
400
#9198EA
oklch(70.7% 0.12 279.1)
-
Step 500
500
#787CE4
oklch(63.1% 0.154 279.4)
-
Step 600
600
#6263D2
oklch(55.7% 0.167 279.1)
-
Step 700
700
#5151B6
oklch(49.1% 0.156 279)
-
Step 800
800 (this color)
#404090
oklch(41.7% 0.129 279.2)
-
Step 900
900
#383975
oklch(37.7% 0.1 279.7)
-
Step 950
950
#202245
oklch(27% 0.064 278.7)
#404090 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) | #0F4D93 | 0.054 |
| Deuteranopia (no green cones) | #00468E | 0.057 |
| Tritanopia (no blue cones) | #1A5261 | 0.112 |
| Achromatopsia (no color) | #4A4A4A | 0.129 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404090
#404090
oklch(41.7% 0.129 279.2)
- #584C00
#584C00
oklch(41.6% 0.086 98.8)
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 #404090, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.014
- Dark Slate Blue #483D8B ΔE 0.016
- Cobalt #1E488F ΔE 0.042
- Twilight #4E518B ΔE 0.055
- Dusk Blue #26538D ΔE 0.057
- Light Navy #155084 ΔE 0.064
- Sapphire #2138AB ΔE 0.064
- Twilight Blue #0A437A ΔE 0.068
Use #404090 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.