#402E54
Closest named color: Space Cadet (#2B2D42). oklch(34% 0.068 304.9), rgb(64, 46, 84).
Aa
White text reads best on this color (12.09:1).
About this color
#402E54 is a dark, muted purple. In OKLCH its lightness is 34%, its chroma 0.068 and its hue 305°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.051 away. White text reads best on it, at 12.09:1.
| Hue family | Purples |
| Lightness | dark (34%) |
| Chroma | muted (0.068) |
| Temperature | in between |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.73:1 |
| White text | 12.09:1 |
Values
| HEX | #402E54 |
| RGB | rgb(64, 46, 84) |
| HSL | hsl(268, 29%, 25%) |
| OKLCH | oklch(34% 0.068 304.9) |
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 #402E54 | 12.09:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #402E54 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #402E54 text on white | 12.09:1 | AAA | Lc 97.5 | Preferred for body text |
| #402E54 text on black | 1.73:1 | 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
#F6F4F9
oklch(97% 0.007 304.2)
-
Step 100
100
#ECE8F2
oklch(93.7% 0.014 304.1)
-
Step 200
200
#DDD5E9
oklch(88.5% 0.028 303.9)
-
Step 300
300
#C8B9DC
oklch(80.9% 0.051 304.7)
-
Step 400
400
#AC94CA
oklch(70.7% 0.082 304.7)
-
Step 500
500
#9879BC
oklch(63.1% 0.104 304.9)
-
Step 600
600
#8361A8
oklch(55.7% 0.113 305.1)
-
Step 700
700
#6F5090
oklch(49.2% 0.104 305.2)
-
Step 800
800
#5A4275
oklch(42.8% 0.086 304.7)
-
Step 900
900 (this color)
#402E54
oklch(34% 0.068 304.9)
-
Step 950
950
#2B2137
oklch(27% 0.042 304.6)
#402E54 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) | #253555 | 0.047 |
| Deuteranopia (no green cones) | #293653 | 0.044 |
| Tritanopia (no blue cones) | #3D343D | 0.050 |
| Achromatopsia (no color) | #363636 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #402E54
#402E54
oklch(34% 0.068 304.9)
- #303E12
#303E12
oklch(34.1% 0.069 124.9)
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 #402E54, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.056
- Gunmetal #293241 ΔE 0.057
- Onyx #343A40 ΔE 0.062
- Dark Blue Grey #1F3B4D ΔE 0.065
- Charcoal Grey #3C4142 ΔE 0.076
- Dark Grey Blue #29465B ΔE 0.076
- Grape Purple #5D1451 ΔE 0.077
Use #402E54 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.