#404670
Closest named color: Dark Grey Blue (#29465B). oklch(40.8% 0.071 276.6), rgb(64, 70, 112).
Aa
White text reads best on this color (9.02:1).
About this color
#404670 is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.071 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.050 away. White text reads best on it, at 9.02:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.32:1 |
| White text | 9.02:1 |
Values
| HEX | #404670 |
| RGB | rgb(64, 70, 112) |
| HSL | hsl(233, 27%, 35%) |
| OKLCH | oklch(40.8% 0.071 276.6) |
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 #404670 | 9.02:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #404670 | 2.32:1 | Fails | Lc 13.3 | Not readable |
| #404670 text on white | 9.02:1 | AAA | Lc 90.7 | Preferred for body text |
| #404670 text on black | 2.32:1 | Fails | Lc -11.6 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D5D8E9
oklch(88.5% 0.023 277.9)
-
Step 300
300
#B9BFDC
oklch(80.9% 0.041 276.2)
-
Step 400
400
#959DCA
oklch(70.6% 0.066 276.7)
-
Step 500
500
#7C85BD
oklch(63.1% 0.085 276.7)
-
Step 600
600
#656EA9
oklch(55.6% 0.092 276.4)
-
Step 700
700
#545C91
oklch(49.2% 0.085 276.3)
-
Step 800
800 (this color)
#404670
oklch(40.8% 0.071 276.6)
-
Step 900
900
#3A3F5F
oklch(37.8% 0.055 276.6)
-
Step 950
950
#222538
oklch(27.1% 0.036 276.8)
#404670 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) | #384B72 | 0.017 |
| Deuteranopia (no green cones) | #34476F | 0.017 |
| Tritanopia (no blue cones) | #314E55 | 0.063 |
| Achromatopsia (no color) | #494949 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404670
#404670
oklch(40.8% 0.071 276.6)
- #554A16
#554A16
oklch(40.9% 0.071 97.1)
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 #404670, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.050
- Dusk #4E5481 ΔE 0.052
- Light Navy #155084 ΔE 0.054
- Twilight #4E518B ΔE 0.056
- Dark Slate Blue #483D8B ΔE 0.057
- Dusk Blue #26538D ΔE 0.059
- Twilight Blue #0A437A ΔE 0.059
- YInMn Blue #415A77 ΔE 0.060
Use #404670 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.