#400637
Closest named color: Aubergine (#3D0734). oklch(26% 0.105 335.6), rgb(64, 6, 55).
Aa
White text reads best on this color (16.16:1).
About this color
#400637 is a dark, moderately saturated purple. In OKLCH its lightness is 26%, its chroma 0.105 and its hue 336°. Its hue sits on the warm side of the wheel. The nearest named color is Aubergine (#3D0734), ΔE 0.009 away. White text reads best on it, at 16.16:1.
| Hue family | Purples |
| Lightness | dark (26%) |
| Chroma | moderately saturated (0.105) |
| Temperature | warm |
| Nearest name | Aubergine (#3D0734) |
| Black text | 1.29:1 |
| White text | 16.16:1 |
Values
| HEX | #400637 |
| RGB | rgb(64, 6, 55) |
| HSL | hsl(309, 83%, 14%) |
| OKLCH | oklch(26% 0.105 335.6) |
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 #400637 | 16.16:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #400637 | 1.29:1 | Fails | Lc 0.0 | Not readable |
| #400637 text on white | 16.16:1 | AAA | Lc 102.3 | Preferred for body text |
| #400637 text on black | 1.29:1 | 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
#FDF1FA
oklch(97% 0.017 334.2)
-
Step 100
100
#FAE1F3
oklch(93.5% 0.036 335.7)
-
Step 200
200
#F7C9EB
oklch(88.6% 0.068 335.6)
-
Step 300
300
#F3A1E0
oklch(80.9% 0.125 335.5)
-
Step 400
400
#E868CF
oklch(70.6% 0.197 335.6)
-
Step 500
500
#DE2DC3
oklch(63.1% 0.253 335.5)
-
Step 600
600
#C200A9
oklch(55.7% 0.247 335.7)
-
Step 700
700
#A4008F
oklch(49.2% 0.218 335.6)
-
Step 800
800
#870076
oklch(42.7% 0.19 335.3)
-
Step 900
900
#710262
oklch(37.6% 0.165 335.6)
-
Step 950
950 (this color)
#400637
oklch(26% 0.105 335.6)
#400637 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) | #061B38 | 0.117 |
| Deuteranopia (no green cones) | #1C2436 | 0.098 |
| Tritanopia (no blue cones) | #440B1E | 0.053 |
| Achromatopsia (no color) | #212121 | 0.105 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #400637
#400637
oklch(26% 0.105 335.6)
- #002D16
#002D16
oklch(26.1% 0.064 155.3)
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 #400637, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Aubergine #3D0734 ΔE 0.009
- Eggplant #380835 ΔE 0.019
- Eggplant Purple #430541 ΔE 0.020
- Dark Plum #3F012C ΔE 0.021
- Dark Purple #35063E ΔE 0.031
- Deep Purple #36013F ΔE 0.034
- Deep Violet #490648 ΔE 0.036
- Plum Purple #4E0550 ΔE 0.054
Use #400637 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.