#404763
Closest named color: Dark Grey Blue (#29465B). oklch(40.4% 0.048 273.3), rgb(64, 71, 99).
Aa
White text reads best on this color (9.13:1).
About this color
#404763 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.048 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.035 away. White text reads best on it, at 9.13:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.29:1 |
| White text | 9.13:1 |
Values
| HEX | #404763 |
| RGB | rgb(64, 71, 99) |
| HSL | hsl(228, 21%, 32%) |
| OKLCH | oklch(40.4% 0.048 273.3) |
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 #404763 | 9.13:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #404763 | 2.29:1 | Fails | Lc 13.0 | Not readable |
| #404763 text on white | 9.13:1 | AAA | Lc 91.0 | Preferred for body text |
| #404763 text on black | 2.29:1 | Fails | Lc -11.3 | 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
#E8EAEF
oklch(93.7% 0.007 268.5)
-
Step 200
200
#D5D9E4
oklch(88.5% 0.016 270)
-
Step 300
300
#BAC0D3
oklch(80.9% 0.028 271.8)
-
Step 400
400
#979FBD
oklch(70.6% 0.045 273.5)
-
Step 500
500
#7E88AD
oklch(63.2% 0.057 272.9)
-
Step 600
600
#677198
oklch(55.6% 0.062 273.1)
-
Step 700
700
#565F82
oklch(49.2% 0.057 273)
-
Step 800
800 (this color)
#404763
oklch(40.4% 0.048 273.3)
-
Step 900
900
#3B4056
oklch(37.6% 0.038 274.5)
-
Step 950
950
#222632
oklch(27% 0.023 270.4)
#404763 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) | #3E4A64 | 0.009 |
| Deuteranopia (no green cones) | #3C4762 | 0.006 |
| Tritanopia (no blue cones) | #364C51 | 0.042 |
| Achromatopsia (no color) | #484848 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404763
#404763
oklch(40.4% 0.048 273.3)
- #514829
#514829
oklch(40.3% 0.048 93.7)
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 #404763, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.035
- Charcoal #264653 ΔE 0.047
- Dark Slate Gray #2F4F4F ΔE 0.054
- Charcoal Grey #3C4142 ΔE 0.056
- YInMn Blue #415A77 ΔE 0.060
- Dusk #4E5481 ΔE 0.062
- Dusty Grape #545775 ΔE 0.063
- Light Navy #155084 ΔE 0.066
Use #404763 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.