#40496F
Closest named color: Dusk (#4E5481). oklch(41.5% 0.065 273.1), rgb(64, 73, 111).
Aa
White text reads best on this color (8.74:1).
About this color
#40496F is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.065 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk (#4E5481), ΔE 0.047 away. White text reads best on it, at 8.74:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dusk (#4E5481) |
| Black text | 2.40:1 |
| White text | 8.74:1 |
Values
| HEX | #40496F |
| RGB | rgb(64, 73, 111) |
| HSL | hsl(229, 27%, 34%) |
| OKLCH | oklch(41.5% 0.065 273.1) |
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 #40496F | 8.74:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #40496F | 2.40:1 | Fails | Lc 14.1 | Not readable |
| #40496F text on white | 8.74:1 | AAA | Lc 89.9 | Fine for body text |
| #40496F text on black | 2.40:1 | Fails | Lc -12.3 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F1
oklch(93.5% 0.011 274.9)
-
Step 200
200
#D4D9E7
oklch(88.6% 0.02 270.2)
-
Step 300
300
#B8C0DA
oklch(81% 0.038 272)
-
Step 400
400
#949FC7
oklch(70.8% 0.06 272.8)
-
Step 500
500
#7A86B9
oklch(63% 0.078 273.8)
-
Step 600
600
#6370A5
oklch(55.7% 0.084 272.9)
-
Step 700
700
#525D8D
oklch(49% 0.078 273.3)
-
Step 800
800 (this color)
#40496F
oklch(41.5% 0.065 273.1)
-
Step 900
900
#39405D
oklch(37.8% 0.051 273.3)
-
Step 950
950
#212536
oklch(26.9% 0.032 273.8)
#40496F 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) | #3C4D71 | 0.012 |
| Deuteranopia (no green cones) | #38496E | 0.012 |
| Tritanopia (no blue cones) | #315157 | 0.058 |
| Achromatopsia (no color) | #4B4B4B | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40496F
#40496F
oklch(41.5% 0.065 273.1)
- #584B1E
#584B1E
oklch(41.6% 0.065 93.3)
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 #40496F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk #4E5481 ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.048
- YInMn Blue #415A77 ΔE 0.051
- Light Navy #155084 ΔE 0.052
- Twilight #4E518B ΔE 0.054
- Dusty Grape #545775 ΔE 0.054
- Dusk Blue #26538D ΔE 0.056
- Light Navy Blue #2E5A88 ΔE 0.058
Use #40496F 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.