#401B51
Closest named color: Deep Violet (#490648). oklch(30.3% 0.1 313.6), rgb(64, 27, 81).
Aa
White text reads best on this color (14.06:1).
About this color
#401B51 is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.100 and its hue 314°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.040 away. White text reads best on it, at 14.06:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.100) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.49:1 |
| White text | 14.06:1 |
Values
| HEX | #401B51 |
| RGB | rgb(64, 27, 81) |
| HSL | hsl(281, 50%, 21%) |
| OKLCH | oklch(30.3% 0.1 313.6) |
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 #401B51 | 14.06:1 | AAA | Lc -103.4 | Preferred for body text |
| Black text on #401B51 | 1.49:1 | Fails | Lc 0.0 | Not readable |
| #401B51 text on white | 14.06:1 | AAA | Lc 100.4 | Preferred for body text |
| #401B51 text on black | 1.49:1 | 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 950.
-
Step 50
50
#F9F3FD
oklch(97.2% 0.015 312.2)
-
Step 100
100
#F2E4FA
oklch(93.6% 0.033 313.5)
-
Step 200
200
#E9CDF8
oklch(88.5% 0.065 313.9)
-
Step 300
300
#DCAAF6
oklch(80.9% 0.117 313.7)
-
Step 400
400
#CA77F2
oklch(70.7% 0.189 313.7)
-
Step 500
500
#BC4AED
oklch(63.1% 0.242 313.8)
-
Step 600
600
#A71ADB
oklch(55.5% 0.262 313.6)
-
Step 700
700
#8F00BE
oklch(49.1% 0.244 313.5)
-
Step 800
800
#740E9A
oklch(42.6% 0.202 313.4)
-
Step 900
900
#5E1A7A
oklch(37.7% 0.157 313.7)
-
Step 950
950 (this color)
#401B51
oklch(30.3% 0.1 313.6)
#401B51 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) | #082953 | 0.091 |
| Deuteranopia (no green cones) | #192C50 | 0.079 |
| Tritanopia (no blue cones) | #3E2533 | 0.067 |
| Achromatopsia (no color) | #2C2C2C | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #401B51
#401B51
oklch(30.3% 0.1 313.6)
- #1B3700
#1B3700
oklch(30.3% 0.086 133.6)
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 #401B51, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.040
- Plum Purple #4E0550 ΔE 0.043
- Eggplant Purple #430541 ΔE 0.046
- Dark Purple #35063E ΔE 0.060
- Aubergine #3D0734 ΔE 0.063
- Grape Purple #5D1451 ΔE 0.063
- Deep Purple #36013F ΔE 0.064
- Eggplant #380835 ΔE 0.064
Use #401B51 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.