#2B1F5D
Closest named color: Midnight Blue (#191970). oklch(29.4% 0.106 286.9), rgb(43, 31, 93).
Aa
White text reads best on this color (14.41:1).
About this color
#2B1F5D is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.106 and its hue 287°. 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 14.41:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Midnight Blue (#191970) |
| Black text | 1.45:1 |
| White text | 14.41:1 |
Values
| HEX | #2B1F5D |
| RGB | rgb(43, 31, 93) |
| HSL | hsl(252, 50%, 24%) |
| OKLCH | oklch(29.4% 0.106 286.9) |
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 #2B1F5D | 14.41:1 | AAA | Lc -103.9 | Preferred for body text |
| Black text on #2B1F5D | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #2B1F5D text on white | 14.41:1 | AAA | Lc 100.9 | Preferred for body text |
| #2B1F5D text on black | 1.45:1 | 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
#E8E7FF
oklch(93.6% 0.032 287.7)
-
Step 200
200
#D6D4FF
oklch(88.5% 0.059 287.3)
-
Step 300
300
#BCB7FF
oklch(80.9% 0.101 287.1)
-
Step 400
400
#9B8EFF
oklch(70.7% 0.161 286.8)
-
Step 500
500
#866CFF
oklch(63.2% 0.209 286.9)
-
Step 600
600
#7440FF
oklch(55.6% 0.26 287)
-
Step 700
700
#6324E7
oklch(49.1% 0.258 286.8)
-
Step 800
800
#5023BA
oklch(42.6% 0.213 286.8)
-
Step 900
900
#412693
oklch(37.7% 0.167 286.7)
-
Step 950
950 (this color)
#2B1F5D
oklch(29.4% 0.106 286.9)
#2B1F5D 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) | #002B5F | 0.055 |
| Deuteranopia (no green cones) | #00285C | 0.054 |
| Tritanopia (no blue cones) | #192E3A | 0.089 |
| Achromatopsia (no color) | #2A2A2A | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B1F5D
#2B1F5D
oklch(29.4% 0.106 286.9)
- #302E00
#302E00
oklch(29.4% 0.063 107.1)
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 #2B1F5D, 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 0.056
- Dark Indigo #1F0954 ΔE 0.057
- Prussian Blue #1D3557 ΔE 0.067
- Space Cadet #2B2D42 ΔE 0.069
- Oxford Blue #1B263B ΔE 0.073
- Marine Blue #01386A ΔE 0.077
- Dark Purple #35063E ΔE 0.078
Use #2B1F5D 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.