#404764
Closest named color: Dark Grey Blue (#29465B). oklch(40.4% 0.05 273.5), rgb(64, 71, 100).
Aa
White text reads best on this color (9.11:1).
About this color
#404764 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.050 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.036 away. White text reads best on it, at 9.11:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.30:1 |
| White text | 9.11:1 |
Values
| HEX | #404764 |
| RGB | rgb(64, 71, 100) |
| HSL | hsl(228, 22%, 32%) |
| OKLCH | oklch(40.4% 0.05 273.5) |
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 #404764 | 9.11:1 | AAA | Lc -95.3 | Preferred for body text |
| Black text on #404764 | 2.30:1 | Fails | Lc 13.0 | Not readable |
| #404764 text on white | 9.11:1 | AAA | Lc 91.0 | Preferred for body text |
| #404764 text on black | 2.30:1 | Fails | Lc -11.4 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8EAF0
oklch(93.7% 0.008 271.3)
-
Step 200
200
#D5D9E4
oklch(88.5% 0.016 270)
-
Step 300
300
#BAC0D4
oklch(80.9% 0.029 272.4)
-
Step 400
400
#979FBE
oklch(70.7% 0.046 273.8)
-
Step 500
500
#7E87AE
oklch(63% 0.06 274.5)
-
Step 600
600
#67719A
oklch(55.7% 0.065 273.5)
-
Step 700
700
#565E83
oklch(49% 0.06 274.6)
-
Step 800
800 (this color)
#404764
oklch(40.4% 0.05 273.5)
-
Step 900
900
#3B4056
oklch(37.6% 0.038 274.5)
-
Step 950
950
#222633
oklch(27.1% 0.025 271.4)
#404764 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) | #3E4A65 | 0.009 |
| Deuteranopia (no green cones) | #3B4763 | 0.008 |
| Tritanopia (no blue cones) | #364D51 | 0.045 |
| Achromatopsia (no color) | #484848 | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404764
#404764
oklch(40.4% 0.05 273.5)
- #524828
#524828
oklch(40.4% 0.05 92.6)
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 #404764, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.036
- Charcoal #264653 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.056
- Charcoal Grey #3C4142 ΔE 0.058
- YInMn Blue #415A77 ΔE 0.059
- Dusk #4E5481 ΔE 0.061
- Dusty Grape #545775 ΔE 0.062
- Light Navy #155084 ΔE 0.065
Use #404764 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.