#402D69
Closest named color: Prussian Blue (#1D3557). oklch(35.1% 0.101 295.3), rgb(64, 45, 105).
Aa
White text reads best on this color (11.68:1).
About this color
#402D69 is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.101 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.068 away. White text reads best on it, at 11.68:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.101) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.79:1 |
| White text | 11.68:1 |
Values
| HEX | #402D69 |
| RGB | rgb(64, 45, 105) |
| HSL | hsl(259, 40%, 29%) |
| OKLCH | oklch(35.1% 0.101 295.3) |
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 #402D69 | 11.68:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #402D69 | 1.79:1 | Fails | Lc 0.0 | Not readable |
| #402D69 text on white | 11.68:1 | AAA | Lc 96.6 | Preferred for body text |
| #402D69 text on black | 1.79:1 | 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
#F6F4FC
oklch(97.1% 0.011 297.6)
-
Step 100
100
#EBE7F7
oklch(93.6% 0.022 297.4)
-
Step 200
200
#DBD4F3
oklch(88.5% 0.043 295.9)
-
Step 300
300
#C4B7ED
oklch(80.8% 0.076 295.7)
-
Step 400
400
#A790E4
oklch(70.7% 0.122 295.7)
-
Step 500
500
#9273DC
oklch(63.2% 0.155 295.2)
-
Step 600
600
#7D59C9
oklch(55.6% 0.167 295.2)
-
Step 700
700
#6A48AE
oklch(49.1% 0.156 295.4)
-
Step 800
800
#563C8D
oklch(42.8% 0.129 295.2)
-
Step 900
900 (this color)
#402D69
oklch(35.1% 0.101 295.3)
-
Step 950
950
#291F42
oklch(27% 0.064 294.9)
#402D69 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) | #13396B | 0.066 |
| Deuteranopia (no green cones) | #183768 | 0.061 |
| Tritanopia (no blue cones) | #363946 | 0.080 |
| Achromatopsia (no color) | #383838 | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #402D69
#402D69
oklch(35.1% 0.101 295.3)
- #3A3F00
#3A3F00
oklch(35.1% 0.079 114.7)
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 #402D69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.068
- Dark Slate Blue #483D8B ΔE 0.070
- Marine Blue #01386A ΔE 0.075
- Royal Purple #4B006E ΔE 0.076
- Space Cadet #2B2D42 ΔE 0.080
- Indigo #4B0082 ΔE 0.081
- Marine #042E60 ΔE 0.081
- Twilight Blue #0A437A ΔE 0.082
Use #402D69 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.