#404567
Closest named color: Dark Grey Blue (#29465B). oklch(40.1% 0.058 277.1), rgb(64, 69, 103).
Aa
White text reads best on this color (9.27:1).
About this color
#404567 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.058 and its hue 277°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.039 away. White text reads best on it, at 9.27:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.26:1 |
| White text | 9.27:1 |
Values
| HEX | #404567 |
| RGB | rgb(64, 69, 103) |
| HSL | hsl(232, 23%, 33%) |
| OKLCH | oklch(40.1% 0.058 277.1) |
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 #404567 | 9.27:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #404567 | 2.26:1 | Fails | Lc 12.6 | Not readable |
| #404567 text on white | 9.27:1 | AAA | Lc 91.4 | Preferred for body text |
| #404567 text on black | 2.26:1 | Fails | Lc -11.0 | 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 900.
-
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
#B9BFDD
oklch(81% 0.043 276.5)
-
Step 400
400
#959DCC
oklch(70.7% 0.069 277)
-
Step 500
500
#7C84BF
oklch(63% 0.089 277.6)
-
Step 600
600
#656DAB
oklch(55.5% 0.097 277.2)
-
Step 700
700
#545B93
oklch(49.1% 0.09 277.1)
-
Step 800
800
#454B77
oklch(42.8% 0.073 276.9)
-
Step 900
900 (this color)
#404567
oklch(40.1% 0.058 277.1)
-
Step 950
950
#222538
oklch(27.1% 0.036 276.8)
#404567 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) | #3A4968 | 0.014 |
| Deuteranopia (no green cones) | #384666 | 0.012 |
| Tritanopia (no blue cones) | #354C51 | 0.052 |
| Achromatopsia (no color) | #474747 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404567
#404567
oklch(40.1% 0.058 277.1)
- #514821
#514821
oklch(40.1% 0.058 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 #404567, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.039
- Charcoal #264653 ΔE 0.052
- Dusk #4E5481 ΔE 0.062
- Charcoal Grey #3C4142 ΔE 0.063
- Light Navy #155084 ΔE 0.063
- YInMn Blue #415A77 ΔE 0.064
- Dark Slate Gray #2F4F4F ΔE 0.064
- Twilight Blue #0A437A ΔE 0.064
Use #404567 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.