#402C5B
Closest named color: Prussian Blue (#1D3557). oklch(34% 0.082 301.8), rgb(64, 44, 91).
Aa
White text reads best on this color (12.14:1).
About this color
#402C5B is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.082 and its hue 302°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.060 away. White text reads best on it, at 12.14:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.082) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.72:1 |
| White text | 12.14:1 |
Values
| HEX | #402C5B |
| RGB | rgb(64, 44, 91) |
| HSL | hsl(266, 35%, 26%) |
| OKLCH | oklch(34% 0.082 301.8) |
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 #402C5B | 12.14:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #402C5B | 1.72:1 | Fails | Lc 0.0 | Not readable |
| #402C5B text on white | 12.14:1 | AAA | Lc 97.6 | Preferred for body text |
| #402C5B text on black | 1.72:1 | 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
#F6F4FA
oklch(97% 0.008 301.4)
-
Step 100
100
#ECE7F4
oklch(93.6% 0.018 303.4)
-
Step 200
200
#DDD4ED
oklch(88.5% 0.035 302)
-
Step 300
300
#C8B8E3
oklch(81% 0.062 302)
-
Step 400
400
#AC92D4
oklch(70.7% 0.098 302)
-
Step 500
500
#9876C9
oklch(63.2% 0.126 301.8)
-
Step 600
600
#835DB5
oklch(55.7% 0.136 302.1)
-
Step 700
700
#6F4C9C
oklch(49.2% 0.127 302.1)
-
Step 800
800
#5A3F7F
oklch(42.8% 0.106 301.6)
-
Step 900
900 (this color)
#402C5B
oklch(34% 0.082 301.8)
-
Step 950
950
#2B203C
oklch(27.1% 0.052 301.1)
#402C5B 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) | #1E355D | 0.057 |
| Deuteranopia (no green cones) | #23365A | 0.053 |
| Tritanopia (no blue cones) | #3B343F | 0.062 |
| Achromatopsia (no color) | #363636 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #402C5B
#402C5B
oklch(34% 0.082 301.8)
- #313E00
#313E00
oklch(34% 0.082 121.9)
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 #402C5B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.061
- Gunmetal #293241 ΔE 0.068
- Grape Purple #5D1451 ΔE 0.074
- Dark Blue Grey #1F3B4D ΔE 0.074
- Onyx #343A40 ΔE 0.075
- Plum Purple #4E0550 ΔE 0.078
- Marine Blue #01386A ΔE 0.079
Use #402C5B 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.