#404091
Closest named color: Blueberry (#464196). oklch(41.8% 0.13 279.2), rgb(64, 64, 145).
Aa
White text reads best on this color (8.89:1).
About this color
#404091 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.130 and its hue 279°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.013 away. White text reads best on it, at 8.89:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.36:1 |
| White text | 8.89:1 |
Values
| HEX | #404091 |
| RGB | rgb(64, 64, 145) |
| HSL | hsl(240, 39%, 41%) |
| OKLCH | oklch(41.8% 0.13 279.2) |
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 #404091 | 8.89:1 | AAA | Lc -94.6 | Preferred for body text |
| Black text on #404091 | 2.36:1 | Fails | Lc 13.9 | Not readable |
| #404091 text on white | 8.89:1 | AAA | Lc 90.1 | Preferred for body text |
| #404091 text on black | 2.36:1 | Fails | Lc -12.2 | 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
#B6BCF2
oklch(80.9% 0.076 279.6)
-
Step 400
400
#9198EB
oklch(70.8% 0.121 279.1)
-
Step 500
500
#777CE5
oklch(63.1% 0.155 278.9)
-
Step 600
600
#6262D3
oklch(55.6% 0.17 279.4)
-
Step 700
700
#5151B7
oklch(49.2% 0.157 278.9)
-
Step 800
800 (this color)
#404091
oklch(41.8% 0.13 279.2)
-
Step 900
900
#373976
oklch(37.6% 0.102 278.9)
-
Step 950
950
#202245
oklch(27% 0.064 278.7)
#404091 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) | #0C4D94 | 0.055 |
| Deuteranopia (no green cones) | #00478F | 0.057 |
| Tritanopia (no blue cones) | #195362 | 0.114 |
| Achromatopsia (no color) | #4A4A4A | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404091
#404091
oklch(41.8% 0.13 279.2)
- #584D00
#584D00
oklch(41.8% 0.087 99.9)
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 #404091, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.013
- Dark Slate Blue #483D8B ΔE 0.017
- Cobalt #1E488F ΔE 0.043
- Twilight #4E518B ΔE 0.056
- Dusk Blue #26538D ΔE 0.058
- Sapphire #2138AB ΔE 0.063
- Light Navy #155084 ΔE 0.065
- Twilight Blue #0A437A ΔE 0.069
Use #404091 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.