#2D2566
Closest named color: Midnight Blue (#191970). oklch(31.5% 0.11 283.7), rgb(45, 37, 102).
Aa
White text reads best on this color (13.39:1).
About this color
#2D2566 is a dark, moderately saturated purple. In OKLCH its lightness is 31%, its chroma 0.110 and its hue 284°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.049 away. White text reads best on it, at 13.39:1.
| Hue family | Purples |
| Lightness | dark (31%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.56:1 |
| White text | 13.39:1 |
Values
| HEX | #2D2566 |
| RGB | rgb(45, 37, 102) |
| HSL | hsl(247, 47%, 27%) |
| OKLCH | oklch(31.5% 0.11 283.7) |
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 #2D2566 | 13.39:1 | AAA | Lc -102.7 | Preferred for body text |
| Black text on #2D2566 | 1.56:1 | Fails | Lc 0.0 | Not readable |
| #2D2566 text on white | 13.39:1 | AAA | Lc 99.5 | Preferred for body text |
| #2D2566 text on black | 1.56:1 | 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
#F4F4FF
oklch(97% 0.015 286.1)
-
Step 100
100
#E7E8FF
oklch(93.7% 0.031 283.8)
-
Step 200
200
#D3D5FF
oklch(88.5% 0.058 283)
-
Step 300
300
#B8B8FF
oklch(80.8% 0.1 283.9)
-
Step 400
400
#9690FF
oklch(70.7% 0.159 284)
-
Step 500
500
#7F6FFF
oklch(63.1% 0.206 283.8)
-
Step 600
600
#6C46FF
oklch(55.6% 0.255 283.8)
-
Step 700
700
#5D21EF
oklch(49.2% 0.269 283.7)
-
Step 800
800
#4B21C1
oklch(42.7% 0.223 283.7)
-
Step 900
900
#3D2698
oklch(37.8% 0.173 283.6)
-
Step 950
950 (this color)
#2D2566
oklch(31.5% 0.11 283.7)
#2D2566 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) | #003168 | 0.053 |
| Deuteranopia (no green cones) | #002D65 | 0.051 |
| Tritanopia (no blue cones) | #163441 | 0.092 |
| Achromatopsia (no color) | #2F2F2F | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D2566
#2D2566
oklch(31.5% 0.11 283.7)
- #373300
#373300
oklch(31.5% 0.067 104.8)
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 #2D2566, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.049
- Marine #042E60 ΔE 0.051
- Prussian Blue #1D3557 ΔE 0.059
- Marine Blue #01386A ΔE 0.063
- Space Cadet #2B2D42 ΔE 0.073
- Dark Indigo #1F0954 ΔE 0.077
- Royal Purple #4B006E ΔE 0.079
- Gunmetal #293241 ΔE 0.083
Use #2D2566 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.