#40326E
Closest named color: Dark Slate Blue (#483D8B). oklch(36.5% 0.1 291.4), rgb(64, 50, 110).
Aa
White text reads best on this color (11.05:1).
About this color
#40326E is a dark, moderately saturated purple. In OKLCH its lightness is 36%, its chroma 0.100 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Slate Blue (#483D8B), ΔE 0.057 away. White text reads best on it, at 11.05:1.
| Hue family | Purples |
| Lightness | dark (36%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Dark Slate Blue (#483D8B) |
| Black text | 1.89:1 |
| White text | 11.05:1 |
Values
| HEX | #40326E |
| RGB | rgb(64, 50, 110) |
| HSL | hsl(254, 38%, 31%) |
| OKLCH | oklch(36.5% 0.1 291.4) |
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 #40326E | 11.05:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #40326E | 1.89:1 | Fails | Lc 8.5 | Not readable |
| #40326E text on white | 11.05:1 | AAA | Lc 95.4 | Preferred for body text |
| #40326E text on black | 1.89:1 | Fails | Lc 0.0 | 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
#F5F4FC
oklch(97% 0.011 292)
-
Step 100
100
#E9E8F8
oklch(93.6% 0.021 288.9)
-
Step 200
200
#D9D5F3
oklch(88.5% 0.041 291.7)
-
Step 300
300
#C0B9EE
oklch(81% 0.074 290.7)
-
Step 400
400
#A192E5
oklch(70.6% 0.12 291.3)
-
Step 500
500
#8C75DE
oklch(63.1% 0.154 291.4)
-
Step 600
600
#775BCB
oklch(55.5% 0.167 291.5)
-
Step 700
700
#644AB0
oklch(49% 0.156 291.3)
-
Step 800
800
#523E8E
oklch(42.8% 0.127 291.6)
-
Step 900
900 (this color)
#40326E
oklch(36.5% 0.1 291.4)
-
Step 950
950
#272043
oklch(27.1% 0.064 290.7)
#40326E 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) | #193D70 | 0.057 |
| Deuteranopia (no green cones) | #1B3B6D | 0.055 |
| Tritanopia (no blue cones) | #343E4B | 0.081 |
| Achromatopsia (no color) | #3C3C3C | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40326E
#40326E
oklch(36.5% 0.1 291.4)
- #404200
#404200
oklch(36.5% 0.081 111.7)
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 #40326E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Blue #483D8B ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.069
- Twilight Blue #0A437A ΔE 0.071
- Marine Blue #01386A ΔE 0.072
- Blueberry #464196 ΔE 0.075
- Dark Grey Blue #29465B ΔE 0.080
- Cobalt #1E488F ΔE 0.083
- Marine #042E60 ΔE 0.084
Use #40326E 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.