#2D1B5C
Closest named color: Midnight Blue (#191970). oklch(28.8% 0.11 290.5), rgb(45, 27, 92).
Aa
White text reads best on this color (14.75:1).
About this color
#2D1B5C is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.110 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 0.051 away. White text reads best on it, at 14.75:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.110) |
| Temperature | in between |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.42:1 |
| White text | 14.75:1 |
Values
| HEX | #2D1B5C |
| RGB | rgb(45, 27, 92) |
| HSL | hsl(257, 55%, 23%) |
| OKLCH | oklch(28.8% 0.11 290.5) |
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 #2D1B5C | 14.75:1 | AAA | Lc -104.1 | Preferred for body text |
| Black text on #2D1B5C | 1.42:1 | Fails | Lc 0.0 | Not readable |
| #2D1B5C text on white | 14.75:1 | AAA | Lc 101.2 | Preferred for body text |
| #2D1B5C text on black | 1.42:1 | 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
#D8D3FF
oklch(88.5% 0.06 290.3)
-
Step 300
300
#C0B5FF
oklch(80.9% 0.104 290.7)
-
Step 400
400
#A28BFF
oklch(70.7% 0.166 290.7)
-
Step 500
500
#8E67FF
oklch(63.1% 0.216 290.7)
-
Step 600
600
#7D38FF
oklch(55.6% 0.267 290.7)
-
Step 700
700
#6C10E9
oklch(49.1% 0.269 290.6)
-
Step 800
800
#5718BC
oklch(42.7% 0.223 290.4)
-
Step 900
900
#472194
oklch(37.8% 0.173 290.7)
-
Step 950
950 (this color)
#2D1B5C
oklch(28.8% 0.11 290.5)
#2D1B5C 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) | #00295E | 0.062 |
| Deuteranopia (no green cones) | #00265B | 0.061 |
| Tritanopia (no blue cones) | #1E2B38 | 0.090 |
| Achromatopsia (no color) | #282828 | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D1B5C
#2D1B5C
oklch(28.8% 0.11 290.5)
- #2D2D00
#2D2D00
oklch(28.8% 0.063 109.8)
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 #2D1B5C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.051
- Dark Indigo #1F0954 ΔE 0.051
- Marine #042E60 ΔE 0.065
- Dark Purple #35063E ΔE 0.070
- Deep Purple #36013F ΔE 0.075
- Royal Purple #4B006E ΔE 0.075
- Space Cadet #2B2D42 ΔE 0.075
- Prussian Blue #1D3557 ΔE 0.076
Use #2D1B5C 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.