#402F5E
Closest named color: Prussian Blue (#1D3557). oklch(34.8% 0.081 298.8), rgb(64, 47, 94).
Aa
White text reads best on this color (11.75:1).
About this color
#402F5E is a dark, moderately saturated purple. In OKLCH its lightness is 35%, its chroma 0.081 and its hue 299°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Prussian Blue (#1D3557), ΔE 0.058 away. White text reads best on it, at 11.75:1.
| Hue family | Purples |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.081) |
| Temperature | in between |
| Nearest name | Prussian Blue (#1D3557) |
| Black text | 1.78:1 |
| White text | 11.75:1 |
Values
| HEX | #402F5E |
| RGB | rgb(64, 47, 94) |
| HSL | hsl(262, 33%, 28%) |
| OKLCH | oklch(34.8% 0.081 298.8) |
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 #402F5E | 11.75:1 | AAA | Lc -100.5 | Preferred for body text |
| Black text on #402F5E | 1.78:1 | Fails | Lc 0.0 | Not readable |
| #402F5E text on white | 11.75:1 | AAA | Lc 96.9 | Preferred for body text |
| #402F5E text on black | 1.78:1 | 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
#EBE7F4
oklch(93.5% 0.018 300.1)
-
Step 200
200
#DCD5ED
oklch(88.6% 0.033 299)
-
Step 300
300
#C5B9E3
oklch(80.9% 0.06 298.1)
-
Step 400
400
#A993D5
oklch(70.7% 0.097 299.2)
-
Step 500
500
#9477CA
oklch(63.1% 0.125 298.9)
-
Step 600
600
#7F5EB7
oklch(55.6% 0.137 299)
-
Step 700
700
#6B4D9D
oklch(49% 0.126 299)
-
Step 800
800
#574080
oklch(42.7% 0.105 298.5)
-
Step 900
900 (this color)
#402F5E
oklch(34.8% 0.081 298.8)
-
Step 950
950
#2A203C
oklch(26.9% 0.052 299.3)
#402F5E 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) | #203860 | 0.053 |
| Deuteranopia (no green cones) | #24375D | 0.048 |
| Tritanopia (no blue cones) | #3A3842 | 0.064 |
| Achromatopsia (no color) | #383838 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #402F5E
#402F5E
oklch(34.8% 0.081 298.8)
- #363F00
#363F00
oklch(34.7% 0.081 118.4)
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 #402F5E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Prussian Blue #1D3557 ΔE 0.058
- Space Cadet #2B2D42 ΔE 0.064
- Gunmetal #293241 ΔE 0.069
- Dark Blue Grey #1F3B4D ΔE 0.072
- Onyx #343A40 ΔE 0.074
- Marine Blue #01386A ΔE 0.075
- Dark Grey Blue #29465B ΔE 0.076
- Grape Purple #5D1451 ΔE 0.079
Use #402F5E 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.