#404971
Closest named color: Dusk (#4E5481). oklch(41.6% 0.068 273.4), rgb(64, 73, 113).
Aa
White text reads best on this color (8.71:1).
About this color
#404971 is a dark, muted blue. In OKLCH its lightness is 42%, its chroma 0.068 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.045 away. White text reads best on it, at 8.71:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.40:1 |
| White text | 8.71:1 |
Values
| HEX | #404971 |
| RGB | rgb(64, 73, 113) |
| HSL | hsl(229, 28%, 35%) |
| OKLCH | oklch(41.6% 0.068 273.4) |
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 #404971 | 8.71:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #404971 | 2.40:1 | Fails | Lc 14.2 | Not readable |
| #404971 text on white | 8.71:1 | AAA | Lc 89.8 | Fine for body text |
| #404971 text on black | 2.40:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8E8
oklch(88.4% 0.022 274.7)
-
Step 300
300
#B8BFDB
oklch(80.8% 0.04 274.4)
-
Step 400
400
#939EC9
oklch(70.6% 0.064 273.5)
-
Step 500
500
#7986BB
oklch(63% 0.081 273.3)
-
Step 600
600
#636FA7
oklch(55.6% 0.088 274)
-
Step 700
700
#525D8F
oklch(49.1% 0.081 273.6)
-
Step 800
800 (this color)
#404971
oklch(41.6% 0.068 273.4)
-
Step 900
900
#38405E
oklch(37.8% 0.053 272.2)
-
Step 950
950
#212537
oklch(26.9% 0.034 274.3)
#404971 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) | #3B4D73 | 0.013 |
| Deuteranopia (no green cones) | #374970 | 0.013 |
| Tritanopia (no blue cones) | #305158 | 0.060 |
| Achromatopsia (no color) | #4B4B4B | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #404971
#404971
oklch(41.6% 0.068 273.4)
- #584B1B
#584B1B
oklch(41.5% 0.068 94)
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 #404971, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.045
- YInMn Blue #415A77 ΔE 0.051
- Light Navy #155084 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.051
- Twilight #4E518B ΔE 0.052
- Dusk Blue #26538D ΔE 0.054
- Dusty Grape #545775 ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.057
Use #404971 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.