#404668
Closest named color: Dark Grey Blue (#29465B). oklch(40.4% 0.058 275.8), rgb(64, 70, 104).
Aa
White text reads best on this color (9.15:1).
About this color
#404668 is a dark, muted blue. In OKLCH its lightness is 40%, its chroma 0.058 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.040 away. White text reads best on it, at 9.15:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.29:1 |
| White text | 9.15:1 |
Values
| HEX | #404668 |
| RGB | rgb(64, 70, 104) |
| HSL | hsl(231, 24%, 33%) |
| OKLCH | oklch(40.4% 0.058 275.8) |
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 #404668 | 9.15:1 | AAA | Lc -95.4 | Preferred for body text |
| Black text on #404668 | 2.29:1 | Fails | Lc 12.9 | Not readable |
| #404668 text on white | 9.15:1 | AAA | Lc 91.1 | Preferred for body text |
| #404668 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
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E6
oklch(88.4% 0.019 276.3)
-
Step 300
300
#BABFD7
oklch(80.8% 0.034 276.3)
-
Step 400
400
#979EC3
oklch(70.7% 0.055 276.5)
-
Step 500
500
#7E86B4
oklch(63.1% 0.07 276.6)
-
Step 600
600
#67709F
oklch(55.7% 0.074 275.4)
-
Step 700
700
#565D88
oklch(49.1% 0.069 276.4)
-
Step 800
800 (this color)
#404668
oklch(40.4% 0.058 275.8)
-
Step 900
900
#3B405A
oklch(37.8% 0.045 275.6)
-
Step 950
950
#222534
oklch(26.8% 0.028 275.6)
#404668 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) | #3B4A69 | 0.013 |
| Deuteranopia (no green cones) | #384667 | 0.012 |
| Tritanopia (no blue cones) | #344D52 | 0.053 |
| Achromatopsia (no color) | #484848 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404668
#404668
oklch(40.4% 0.058 275.8)
- #524922
#524922
oklch(40.5% 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 #404668, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.040
- Charcoal #264653 ΔE 0.053
- Dusk #4E5481 ΔE 0.059
- YInMn Blue #415A77 ΔE 0.060
- Light Navy #155084 ΔE 0.061
- Dusty Grape #545775 ΔE 0.063
- Dark Slate Gray #2F4F4F ΔE 0.063
- Twilight Blue #0A437A ΔE 0.064
Use #404668 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.