#40426F
Closest named color: Dark Grey Blue (#29465B). oklch(39.9% 0.075 280.5), rgb(64, 66, 111).
Aa
White text reads best on this color (9.43:1).
About this color
#40426F is a dark, moderately saturated purple. In OKLCH its lightness is 40%, its chroma 0.075 and its hue 280°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.052 away. White text reads best on it, at 9.43:1.
| Hue family | Purples |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.22:1 |
| White text | 9.43:1 |
Values
| HEX | #40426F |
| RGB | rgb(64, 66, 111) |
| HSL | hsl(237, 27%, 34%) |
| OKLCH | oklch(39.9% 0.075 280.5) |
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 #40426F | 9.43:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #40426F | 2.22:1 | Fails | Lc 12.2 | Not readable |
| #40426F text on white | 9.43:1 | AAA | Lc 91.7 | Preferred for body text |
| #40426F text on black | 2.22:1 | Fails | Lc -10.6 | 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
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D5D7EE
oklch(88.5% 0.032 281.8)
-
Step 300
300
#B9BDE5
oklch(80.9% 0.056 280.6)
-
Step 400
400
#969AD8
oklch(70.6% 0.09 281)
-
Step 500
500
#7D80CE
oklch(63.1% 0.116 280.8)
-
Step 600
600
#6769BB
oklch(55.7% 0.125 280.5)
-
Step 700
700
#5557A1
oklch(49.1% 0.117 280)
-
Step 800
800
#464782
oklch(42.6% 0.096 280.8)
-
Step 900
900 (this color)
#40426F
oklch(39.9% 0.075 280.5)
-
Step 950
950
#22233D
oklch(26.9% 0.048 281)
#40426F 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) | #334871 | 0.024 |
| Deuteranopia (no green cones) | #30446E | 0.023 |
| Tritanopia (no blue cones) | #324B53 | 0.066 |
| Achromatopsia (no color) | #464646 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40426F
#40426F
oklch(39.9% 0.075 280.5)
- #51480E
#51480E
oklch(39.9% 0.075 100)
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 #40426F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.052
- Dark Slate Blue #483D8B ΔE 0.053
- Twilight Blue #0A437A ΔE 0.057
- Light Navy #155084 ΔE 0.060
- Dusk #4E5481 ΔE 0.062
- Twilight #4E518B ΔE 0.064
- Cobalt #1E488F ΔE 0.064
- Charcoal #264653 ΔE 0.066
Use #40426F 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.