#402A5C
Closest named color: Prussian Blue (#1D3557). oklch(33.7% 0.087 302.3), rgb(64, 42, 92).
Aa
White text reads best on this color (12.32:1).
About this color
#402A5C is a dark, moderately saturated purple. In OKLCH its lightness is 34%, its chroma 0.087 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 0.063 away. White text reads best on it, at 12.32:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.087) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.70:1 |
| White text | 12.32:1 |
Values
| HEX | #402A5C |
| RGB | rgb(64, 42, 92) |
| HSL | hsl(266, 37%, 26%) |
| OKLCH | oklch(33.7% 0.087 302.3) |
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 #402A5C | 12.32:1 | AAA | Lc -101.4 | Preferred for body text |
| Black text on #402A5C | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #402A5C text on white | 12.32:1 | AAA | Lc 97.9 | Preferred for body text |
| #402A5C text on black | 1.70:1 | 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
#ECE7F5
oklch(93.6% 0.019 302.2)
-
Step 200
200
#DDD4EE
oklch(88.5% 0.037 301.4)
-
Step 300
300
#C8B7E4
oklch(80.8% 0.065 302.2)
-
Step 400
400
#AD91D7
oklch(70.8% 0.104 302.2)
-
Step 500
500
#9974CC
oklch(63.1% 0.133 302.1)
-
Step 600
600
#845AB9
oklch(55.5% 0.147 302.3)
-
Step 700
700
#704A9F
oklch(49.1% 0.135 302.3)
-
Step 800
800
#5B3D81
oklch(42.7% 0.112 302.3)
-
Step 900
900 (this color)
#402A5C
oklch(33.7% 0.087 302.3)
-
Step 950
950
#2C1F3D
oklch(27% 0.056 302.8)
#402A5C 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) | #1A345E | 0.062 |
| Deuteranopia (no green cones) | #20355B | 0.058 |
| Tritanopia (no blue cones) | #3B333E | 0.067 |
| Achromatopsia (no color) | #353535 | 0.088 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #402A5C
#402A5C
oklch(33.7% 0.087 302.3)
- #303D00
#303D00
oklch(33.6% 0.082 122.1)
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 #402A5C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.063
- Gunmetal #293241 ΔE 0.071
- Grape Purple #5D1451 ΔE 0.072
- Plum Purple #4E0550 ΔE 0.073
- Deep Violet #490648 ΔE 0.077
- Royal Purple #4B006E ΔE 0.078
- Dark Blue Grey #1F3B4D ΔE 0.079
Use #402A5C 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.