#40416F
Closest named color: Dark Slate Blue (#483D8B). oklch(39.7% 0.077 281.3), rgb(64, 65, 111).
Aa
White text reads best on this color (9.52:1).
About this color
#40416F is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.077 and its hue 281°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.052 away. White text reads best on it, at 9.52:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.077) |
| Temperature | cool |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 2.20:1 |
| White text | 9.52:1 |
Values
| HEX | #40416F |
| RGB | rgb(64, 65, 111) |
| HSL | hsl(239, 27%, 34%) |
| OKLCH | oklch(39.7% 0.077 281.3) |
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 #40416F | 9.52:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #40416F | 2.20:1 | Fails | Lc 12.0 | Not readable |
| #40416F text on white | 9.52:1 | AAA | Lc 92.0 | Preferred for body text |
| #40416F text on black | 2.20:1 | Fails | Lc -10.4 | 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 900.
-
Step 50
50
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E8E9F5
oklch(93.7% 0.016 282.3)
-
Step 200
200
#D5D7EE
oklch(88.5% 0.032 281.8)
-
Step 300
300
#BABDE6
oklch(81% 0.058 281.7)
-
Step 400
400
#969AD9
oklch(70.7% 0.092 281)
-
Step 500
500
#7E80CF
oklch(63.2% 0.118 281.4)
-
Step 600
600
#6868BC
oklch(55.7% 0.128 281.4)
-
Step 700
700
#5656A2
oklch(49.1% 0.119 281.1)
-
Step 800
800
#474783
oklch(42.8% 0.098 281.5)
-
Step 900
900 (this color)
#40416F
oklch(39.7% 0.077 281.3)
-
Step 950
950
#22233E
oklch(26.9% 0.05 280.9)
#40416F 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) | #314771 | 0.025 |
| Deuteranopia (no green cones) | #2F446E | 0.025 |
| Tritanopia (no blue cones) | #324A52 | 0.067 |
| Achromatopsia (no color) | #454545 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40416F
#40416F
oklch(39.7% 0.077 281.3)
- #50480B
#50480B
oklch(39.8% 0.077 101.4)
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 #40416F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.052
- Dark Grey Blue #29465B ΔE 0.053
- Twilight Blue #0A437A ΔE 0.057
- Light Navy #155084 ΔE 0.062
- Cobalt #1E488F ΔE 0.064
- Dusk #4E5481 ΔE 0.064
- Twilight #4E518B ΔE 0.065
- Blueberry #464196 ΔE 0.066
Use #40416F 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.