#404B65
Closest named color: Dark Grey Blue (#29465B). oklch(41.4% 0.046 266.7), rgb(64, 75, 101).
Aa
White text reads best on this color (8.70:1).
About this color
#404B65 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.046 and its hue 267°. 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 8.70:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #404B65 |
| RGB | rgb(64, 75, 101) |
| HSL | hsl(222, 22%, 32%) |
| OKLCH | oklch(41.4% 0.046 266.7) |
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 #404B65 | 8.70:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #404B65 | 2.41:1 | Fails | Lc 14.1 | Not readable |
| #404B65 text on white | 8.70:1 | AAA | Lc 89.8 | Fine for body text |
| #404B65 text on black | 2.41:1 | Fails | Lc -12.4 | 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
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D4D9E3
oklch(88.4% 0.015 264.5)
-
Step 300
300
#B9C1D3
oklch(81% 0.027 266.6)
-
Step 400
400
#94A0BC
oklch(70.6% 0.043 267)
-
Step 500
500
#7A89AC
oklch(63.1% 0.056 266.7)
-
Step 600
600
#637397
oklch(55.7% 0.059 265.9)
-
Step 700
700
#526081
oklch(49.1% 0.056 266.6)
-
Step 800
800 (this color)
#404B65
oklch(41.4% 0.046 266.7)
-
Step 900
900
#394155
oklch(37.6% 0.036 267.7)
-
Step 950
950
#212632
oklch(26.9% 0.024 267.1)
#404B65 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) | #424D66 | 0.007 |
| Deuteranopia (no green cones) | #3F4A64 | 0.004 |
| Tritanopia (no blue cones) | #355054 | 0.041 |
| Achromatopsia (no color) | #4B4B4B | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404B65
#404B65
oklch(41.4% 0.046 266.7)
- #564A2E
#564A2E
oklch(41.4% 0.045 87.2)
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 #404B65, 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
- YInMn Blue #415A77 ΔE 0.048
- Charcoal #264653 ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.050
- Dusty Grape #545775 ΔE 0.053
- Dusk #4E5481 ΔE 0.055
- Charcoal Grey #3C4142 ΔE 0.061
- Light Navy #155084 ΔE 0.063
Use #404B65 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.