#40174B
Closest named color: Deep Violet (#490648). oklch(29.3% 0.099 318.5), rgb(64, 23, 75).
Aa
White text reads best on this color (14.56:1).
About this color
#40174B is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.099 and its hue 319°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Deep Violet (#490648), ΔE 0.031 away. White text reads best on it, at 14.56:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Deep Violet (#490648) |
| Black text | 1.44:1 |
| White text | 14.56:1 |
Values
| HEX | #40174B |
| RGB | rgb(64, 23, 75) |
| HSL | hsl(287, 53%, 19%) |
| OKLCH | oklch(29.3% 0.099 318.5) |
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 #40174B | 14.56:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #40174B | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #40174B text on white | 14.56:1 | AAA | Lc 100.9 | Preferred for body text |
| #40174B text on black | 1.44:1 | 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
#FAF2FC
oklch(97% 0.016 319.4)
-
Step 100
100
#F4E3F9
oklch(93.6% 0.034 318.5)
-
Step 200
200
#ECCCF5
oklch(88.5% 0.065 318.8)
-
Step 300
300
#E1A8F1
oklch(80.9% 0.117 318.7)
-
Step 400
400
#D174EA
oklch(70.7% 0.189 318.8)
-
Step 500
500
#C346E4
oklch(63.1% 0.241 318.4)
-
Step 600
600
#AF11D1
oklch(55.6% 0.261 318.7)
-
Step 700
700
#9500B3
oklch(49.1% 0.237 318.7)
-
Step 800
800
#7A0793
oklch(42.7% 0.202 318.6)
-
Step 900
900
#621775
oklch(37.6% 0.157 318.4)
-
Step 950
950 (this color)
#40174B
oklch(29.3% 0.099 318.5)
#40174B 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) | #08264D | 0.096 |
| Deuteranopia (no green cones) | #1A2A4A | 0.082 |
| Tritanopia (no blue cones) | #40202E | 0.063 |
| Achromatopsia (no color) | #292929 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #40174B
#40174B
oklch(29.3% 0.099 318.5)
- #0F3600
#0F3600
oklch(29.3% 0.092 138.6)
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 #40174B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Violet #490648 ΔE 0.031
- Eggplant Purple #430541 ΔE 0.034
- Plum Purple #4E0550 ΔE 0.039
- Dark Purple #35063E ΔE 0.049
- Aubergine #3D0734 ΔE 0.050
- Eggplant #380835 ΔE 0.052
- Deep Purple #36013F ΔE 0.053
- Grape Purple #5D1451 ΔE 0.065
Use #40174B 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.