#404DA5
Closest named color: Blueberry (#464196). oklch(45.9% 0.141 273.2), rgb(64, 77, 165).
Aa
White text reads best on this color (7.43:1).
About this color
#404DA5 is a medium-dark, vivid blue. In OKLCH its lightness is 46%, its chroma 0.141 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Blueberry (#464196), ΔE 0.037 away. White text reads best on it, at 7.43:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | vivid (0.141) |
| Temperature | cool |
| Nearest name | Blueberry (#464196) |
| Black text | 2.82:1 |
| White text | 7.43:1 |
Values
| HEX | #404DA5 |
| RGB | rgb(64, 77, 165) |
| HSL | hsl(232, 44%, 45%) |
| OKLCH | oklch(45.9% 0.141 273.2) |
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 #404DA5 | 7.43:1 | AAA | Lc -90.4 | Preferred for body text |
| Black text on #404DA5 | 2.82:1 | Fails | Lc 18.5 | Dividers and decoration only |
| #404DA5 text on white | 7.43:1 | AAA | Lc 85.6 | Fine for body text |
| #404DA5 text on black | 2.82:1 | Fails | Lc -16.5 | 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
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F8
oklch(88.5% 0.045 273)
-
Step 300
300
#AFBEF7
oklch(81% 0.082 273)
-
Step 400
400
#869AF3
oklch(70.8% 0.132 273)
-
Step 500
500
#6A7DEE
oklch(63% 0.169 273.4)
-
Step 600
600
#5464DC
oklch(55.7% 0.182 273.2)
-
Step 700
700
#4552BF
oklch(49.2% 0.17 273.3)
-
Step 800
800 (this color)
#404DA5
oklch(45.9% 0.141 273.2)
-
Step 900
900
#303A7B
oklch(37.7% 0.11 273.4)
-
Step 950
950
#1C2348
oklch(27.1% 0.069 272.9)
#404DA5 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) | #175AA8 | 0.045 |
| Deuteranopia (no green cones) | #0051A3 | 0.048 |
| Tritanopia (no blue cones) | #006171 | 0.122 |
| Achromatopsia (no color) | #555555 | 0.142 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404DA5
#404DA5
oklch(45.9% 0.141 273.2)
- #6A5600
#6A5600
oklch(46% 0.094 93.2)
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 #404DA5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blueberry #464196 ΔE 0.037
- Twilight #4E518B ΔE 0.050
- Dusk Blue #26538D ΔE 0.053
- Denim Blue #3B5B92 ΔE 0.053
- Cobalt #1E488F ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.056
- Dusky Blue #475F94 ΔE 0.063
- Light Navy Blue #2E5A88 ΔE 0.067
Use #404DA5 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.