#31215E
Closest named color: Midnight Blue (#191970). oklch(30.5% 0.104 291), rgb(49, 33, 94).
Aa
White text reads best on this color (13.90:1).
About this color
#31215E is a dark, moderately saturated purple. In OKLCH its lightness is 30%, its chroma 0.104 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 0.058 away. White text reads best on it, at 13.90:1.
| Hue family | Purples |
| Lightness | dark (30%) |
| Chroma | moderately saturated (0.104) |
| Temperature | in between |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.50:1 |
| White text | 13.90:1 |
Values
| HEX | #31215E |
| RGB | rgb(49, 33, 94) |
| HSL | hsl(256, 48%, 25%) |
| OKLCH | oklch(30.5% 0.104 291) |
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 #31215E | 13.90:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #31215E | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #31215E text on white | 13.90:1 | AAA | Lc 100.3 | Preferred for body text |
| #31215E 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
#6B21E1
oklch(49.1% 0.254 290.9)
-
Step 800
800
#5721B6
oklch(42.8% 0.211 290.9)
-
Step 900
900
#47248F
oklch(37.7% 0.164 291.4)
-
Step 950
950 (this color)
#31215E
oklch(30.5% 0.104 291)
#31215E 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) | #002D60 | 0.063 |
| Deuteranopia (no green cones) | #002B5D | 0.063 |
| Tritanopia (no blue cones) | #242F3C | 0.084 |
| Achromatopsia (no color) | #2C2C2C | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #31215E
#31215E
oklch(30.5% 0.104 291)
- #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 #31215E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.058
- Marine #042E60 ΔE 0.061
- Prussian Blue #1D3557 ΔE 0.065
- Space Cadet #2B2D42 ΔE 0.067
- Dark Indigo #1F0954 ΔE 0.069
- Royal Purple #4B006E ΔE 0.073
- Marine Blue #01386A ΔE 0.076
- Deep Violet #490648 ΔE 0.078
Use #31215E 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.