#404597
Closest named color: Blueberry (#464196). oklch(43.2% 0.132 276.7), rgb(64, 69, 151).
Aa
White text reads best on this color (8.34:1).
About this color
#404597 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.132 and its hue 277°. 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 8.34:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.132) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.51:1 |
| White text | 8.34:1 |
Values
| HEX | #404597 |
| RGB | rgb(64, 69, 151) |
| HSL | hsl(237, 40%, 42%) |
| OKLCH | oklch(43.2% 0.132 276.7) |
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 #404597 | 8.34:1 | AAA | Lc -93.1 | Preferred for body text |
| Black text on #404597 | 2.51:1 | Fails | Lc 15.5 | Dividers and decoration only |
| #404597 text on white | 8.34:1 | AAA | Lc 88.5 | Fine for body text |
| #404597 text on black | 2.51:1 | Fails | Lc -13.7 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E6E9F9
oklch(93.6% 0.022 277.5)
-
Step 200
200
#D1D7F6
oklch(88.4% 0.043 276.8)
-
Step 300
300
#B3BDF3
oklch(80.9% 0.077 276.4)
-
Step 400
400
#8D99ED
oklch(70.8% 0.123 276.6)
-
Step 500
500
#737DE7
oklch(63.2% 0.158 276.8)
-
Step 600
600
#5D63D5
oklch(55.5% 0.172 277)
-
Step 700
700
#4D52B9
oklch(49.2% 0.16 276.7)
-
Step 800
800 (this color)
#404597
oklch(43.2% 0.132 276.7)
-
Step 900
900
#353A77
oklch(37.8% 0.103 276.8)
-
Step 950
950
#1F2246
oklch(27% 0.066 277.4)
#404597 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) | #14529A | 0.050 |
| Deuteranopia (no green cones) | #004A95 | 0.053 |
| Tritanopia (no blue cones) | #0E5867 | 0.116 |
| Achromatopsia (no color) | #4E4E4E | 0.132 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404597
#404597
oklch(43.2% 0.132 276.7)
- #5F5000
#5F5000
oklch(43.3% 0.089 96.6)
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 #404597, 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 0.028
- Cobalt #1E488F ΔE 0.042
- Twilight #4E518B ΔE 0.048
- Dusk Blue #26538D ΔE 0.050
- Light Navy #155084 ΔE 0.062
- Denim Blue #3B5B92 ΔE 0.062
- Sapphire #2138AB ΔE 0.063
Use #404597 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.