#404AA0
Closest named color: Blueberry (#464196). oklch(44.9% 0.138 274.4), rgb(64, 74, 160).
Aa
White text reads best on this color (7.76:1).
About this color
#404AA0 is a dark, moderately saturated blue. In OKLCH its lightness is 45%, its chroma 0.138 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.027 away. White text reads best on it, at 7.76:1.
| Hue family | Blues |
| Lightness | dark (45%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.70:1 |
| White text | 7.76:1 |
Values
| HEX | #404AA0 |
| RGB | rgb(64, 74, 160) |
| HSL | hsl(234, 43%, 44%) |
| OKLCH | oklch(44.9% 0.138 274.4) |
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 #404AA0 | 7.76:1 | AAA | Lc -91.4 | Preferred for body text |
| Black text on #404AA0 | 2.70:1 | Fails | Lc 17.3 | Dividers and decoration only |
| #404AA0 text on white | 7.76:1 | AAA | Lc 86.7 | Fine for body text |
| #404AA0 text on black | 2.70:1 | Fails | Lc -15.4 | 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
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D0D8F8
oklch(88.6% 0.045 274.4)
-
Step 300
300
#B0BDF5
oklch(80.8% 0.081 274.3)
-
Step 400
400
#8999F1
oklch(70.7% 0.13 274.8)
-
Step 500
500
#6D7DEC
oklch(63.1% 0.166 274.5)
-
Step 600
600
#5764DA
oklch(55.7% 0.179 274.3)
-
Step 700
700
#4852BD
oklch(49.2% 0.166 274.5)
-
Step 800
800 (this color)
#404AA0
oklch(44.9% 0.138 274.4)
-
Step 900
900
#323A7A
oklch(37.8% 0.108 274.7)
-
Step 950
950
#1D2247
oklch(26.9% 0.068 275)
#404AA0 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) | #1657A3 | 0.047 |
| Deuteranopia (no green cones) | #004E9E | 0.050 |
| Tritanopia (no blue cones) | #005E6D | 0.122 |
| Achromatopsia (no color) | #525252 | 0.139 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404AA0
#404AA0
oklch(44.9% 0.138 274.4)
- #665300
#665300
oklch(44.8% 0.092 93.6)
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 #404AA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.027
- Dark Slate Blue #483D8B ΔE 0.046
- Twilight #4E518B ΔE 0.047
- Cobalt #1E488F ΔE 0.049
- Dusk Blue #26538D ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.055
- Sapphire #2138AB ΔE 0.065
- Dusk #4E5481 ΔE 0.066
Use #404AA0 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.