#321E64
Closest named color: Midnight Blue (#191970). oklch(30.6% 0.117 291), rgb(50, 30, 100).
Aa
White text reads best on this color (13.95:1).
About this color
#321E64 is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.117 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.052 away. White text reads best on it, at 13.95:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.117) |
| Temperature | in between |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.50:1 |
| White text | 13.95:1 |
Values
| HEX | #321E64 |
| RGB | rgb(50, 30, 100) |
| HSL | hsl(257, 54%, 25%) |
| OKLCH | oklch(30.6% 0.117 291) |
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 #321E64 | 13.95:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #321E64 | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #321E64 text on white | 13.95:1 | AAA | Lc 100.2 | Preferred for body text |
| #321E64 text on black | 1.50:1 | 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
#F5F4FF
oklch(97.1% 0.015 290.3)
-
Step 100
100
#E9E7FF
oklch(93.7% 0.032 289.6)
-
Step 200
200
#D9D3FF
oklch(88.6% 0.06 291.4)
-
Step 300
300
#C0B5FF
oklch(80.9% 0.104 290.7)
-
Step 400
400
#A38AFF
oklch(70.7% 0.167 291.4)
-
Step 500
500
#8F67FF
oklch(63.2% 0.216 291.1)
-
Step 600
600
#7E37FF
oklch(55.6% 0.268 291.1)
-
Step 700
700
#6E00EC
oklch(49.2% 0.276 291.1)
-
Step 800
800
#5906C2
oklch(42.6% 0.237 290.9)
-
Step 900
900
#481B99
oklch(37.7% 0.184 290.8)
-
Step 950
950 (this color)
#321E64
oklch(30.6% 0.117 291)
#321E64 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) | #002D66 | 0.066 |
| Deuteranopia (no green cones) | #002B63 | 0.066 |
| Tritanopia (no blue cones) | #222F3E | 0.094 |
| Achromatopsia (no color) | #2C2C2C | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #321E64
#321E64
oklch(30.6% 0.117 291)
- #313200
#313200
oklch(30.6% 0.067 111)
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 #321E64, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.052
- Royal Purple #4B006E ΔE 0.065
- Marine #042E60 ΔE 0.067
- Dark Indigo #1F0954 ΔE 0.068
- Prussian Blue #1D3557 ΔE 0.074
- Indigo #4B0082 ΔE 0.076
- Plum Purple #4E0550 ΔE 0.079
- Space Cadet #2B2D42 ΔE 0.080
Use #321E64 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.