#2B1D5D
Closest named color: Midnight Blue (#191970). oklch(29% 0.109 287.7), rgb(43, 29, 93).
Aa
White text reads best on this color (14.61:1).
About this color
#2B1D5D is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.109 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.048 away. White text reads best on it, at 14.61:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.43:1 |
| White text | 14.61:1 |
Values
| HEX | #2B1D5D |
| RGB | rgb(43, 29, 93) |
| HSL | hsl(253, 52%, 24%) |
| OKLCH | oklch(29% 0.109 287.7) |
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 #2B1D5D | 14.61:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #2B1D5D | 1.43:1 | Fails | Lc 0.0 | Not readable |
| #2B1D5D text on white | 14.61:1 | AAA | Lc 101.1 | Preferred for body text |
| #2B1D5D text on black | 1.43:1 | 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
#E8E7FF
oklch(93.6% 0.032 287.7)
-
Step 200
200
#D6D4FF
oklch(88.5% 0.059 287.3)
-
Step 300
300
#BDB7FF
oklch(81% 0.101 287.7)
-
Step 400
400
#9D8DFF
oklch(70.7% 0.163 287.9)
-
Step 500
500
#876BFF
oklch(63.1% 0.211 287.5)
-
Step 600
600
#763FFF
oklch(55.7% 0.261 287.7)
-
Step 700
700
#661CEA
oklch(49.2% 0.266 287.8)
-
Step 800
800
#521EBD
oklch(42.7% 0.22 287.6)
-
Step 900
900
#432495
oklch(37.8% 0.171 287.7)
-
Step 950
950 (this color)
#2B1D5D
oklch(29% 0.109 287.7)
#2B1D5D 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) | #002A5F | 0.057 |
| Deuteranopia (no green cones) | #00275C | 0.055 |
| Tritanopia (no blue cones) | #192C3A | 0.088 |
| Achromatopsia (no color) | #292929 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B1D5D
#2B1D5D
oklch(29% 0.109 287.7)
- #2F2D00
#2F2D00
oklch(29% 0.062 107.1)
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 #2B1D5D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.048
- Dark Indigo #1F0954 ΔE 0.053
- Marine #042E60 ΔE 0.060
- Prussian Blue #1D3557 ΔE 0.071
- Space Cadet #2B2D42 ΔE 0.073
- Dark Purple #35063E ΔE 0.075
- Oxford Blue #1B263B ΔE 0.075
- Royal Purple #4B006E ΔE 0.079
Use #2B1D5D 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.