#40496E
Closest named color: Dark Grey Blue (#29465B). oklch(41.4% 0.063 272.9), rgb(64, 73, 110).
Aa
White text reads best on this color (8.76:1).
About this color
#40496E is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.063 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.047 away. White text reads best on it, at 8.76:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.39:1 |
| White text | 8.76:1 |
Values
| HEX | #40496E |
| RGB | rgb(64, 73, 110) |
| HSL | hsl(228, 26%, 34%) |
| OKLCH | oklch(41.4% 0.063 272.9) |
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 #40496E | 8.76:1 | AAA | Lc -94.4 | Preferred for body text |
| Black text on #40496E | 2.39:1 | Fails | Lc 14.0 | Not readable |
| #40496E text on white | 8.76:1 | AAA | Lc 90.0 | Fine for body text |
| #40496E text on black | 2.39:1 | 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
#B8C0D9
oklch(81% 0.036 271.5)
-
Step 400
400
#949FC6
oklch(70.8% 0.058 272.5)
-
Step 500
500
#7A87B8
oklch(63.2% 0.076 272.6)
-
Step 600
600
#6370A4
oklch(55.6% 0.083 272.7)
-
Step 700
700
#525E8C
oklch(49.2% 0.075 272.2)
-
Step 800
800 (this color)
#40496E
oklch(41.4% 0.063 272.9)
-
Step 900
900
#39405C
oklch(37.8% 0.049 273.1)
-
Step 950
950
#212536
oklch(26.9% 0.032 273.8)
#40496E 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) | #3D4D70 | 0.012 |
| Deuteranopia (no green cones) | #39496D | 0.010 |
| Tritanopia (no blue cones) | #325056 | 0.056 |
| Achromatopsia (no color) | #4B4B4B | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40496E
#40496E
oklch(41.4% 0.063 272.9)
- #574B20
#574B20
oklch(41.5% 0.063 93.9)
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 #40496E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.047
- Dusk #4E5481 ΔE 0.048
- YInMn Blue #415A77 ΔE 0.051
- Light Navy #155084 ΔE 0.053
- Dusty Grape #545775 ΔE 0.054
- Twilight #4E518B ΔE 0.056
- Dusk Blue #26538D ΔE 0.058
- Deep Sea Blue #015482 ΔE 0.059
Use #40496E 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.