#2B1F59
Closest named color: Midnight Blue (#191970). oklch(29% 0.1 288.1), rgb(43, 31, 89).
Aa
White text reads best on this color (14.55:1).
About this color
#2B1F59 is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.100 and its hue 288°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Blue (#191970), ΔE 0.054 away. White text reads best on it, at 14.55:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.44:1 |
| White text | 14.55:1 |
Values
| HEX | #2B1F59 |
| RGB | rgb(43, 31, 89) |
| HSL | hsl(252, 48%, 24%) |
| OKLCH | oklch(29% 0.1 288.1) |
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 #2B1F59 | 14.55:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #2B1F59 | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #2B1F59 text on white | 14.55:1 | AAA | Lc 101.1 | Preferred for body text |
| #2B1F59 text on black | 1.44:1 | 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
#BDB6FF
oklch(80.8% 0.102 288.3)
-
Step 400
400
#9D8DFF
oklch(70.7% 0.163 287.9)
-
Step 500
500
#886AFF
oklch(63% 0.212 288)
-
Step 600
600
#773EFF
oklch(55.7% 0.262 288.2)
-
Step 700
700
#652CDF
oklch(49.2% 0.244 288.2)
-
Step 800
800
#5128B4
oklch(42.7% 0.202 287.8)
-
Step 900
900
#42298E
oklch(37.7% 0.157 287.8)
-
Step 950
950 (this color)
#2B1F59
oklch(29% 0.1 288.1)
#2B1F59 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) | #002A5B | 0.055 |
| Deuteranopia (no green cones) | #002758 | 0.054 |
| Tritanopia (no blue cones) | #1C2C38 | 0.082 |
| Achromatopsia (no color) | #292929 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B1F59
#2B1F59
oklch(29% 0.1 288.1)
- #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 #2B1F59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Blue #191970 ΔE 0.054
- Dark Indigo #1F0954 ΔE 0.056
- Marine #042E60 ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.064
- Prussian Blue #1D3557 ΔE 0.066
- Oxford Blue #1B263B ΔE 0.068
- Dark Purple #35063E ΔE 0.073
- Deep Purple #36013F ΔE 0.079
Use #2B1F59 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.