#2B1750
Closest named color: Dark Indigo (#1F0954). oklch(26.8% 0.099 295), rgb(43, 23, 80).
Aa
White text reads best on this color (15.65:1).
About this color
#2B1750 is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.099 and its hue 295°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.041 away. White text reads best on it, at 15.65:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.099) |
| Temperature | in between |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.34:1 |
| White text | 15.65:1 |
Values
| HEX | #2B1750 |
| RGB | rgb(43, 23, 80) |
| HSL | hsl(261, 55%, 20%) |
| OKLCH | oklch(26.8% 0.099 295) |
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 #2B1750 | 15.65:1 | AAA | Lc -105.0 | Preferred for body text |
| Black text on #2B1750 | 1.34:1 | Fails | Lc 0.0 | Not readable |
| #2B1750 text on white | 15.65:1 | AAA | Lc 102.3 | Preferred for body text |
| #2B1750 text on black | 1.34:1 | 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
#F6F4FF
oklch(97.2% 0.015 294.5)
-
Step 100
100
#EBE6FF
oklch(93.6% 0.034 294.9)
-
Step 200
200
#DBD2FF
oklch(88.5% 0.062 294.3)
-
Step 300
300
#C5B3FF
oklch(80.9% 0.107 294.8)
-
Step 400
400
#AA87FF
oklch(70.7% 0.172 295.1)
-
Step 500
500
#9761FF
oklch(63.1% 0.224 294.9)
-
Step 600
600
#8636F7
oklch(55.7% 0.261 295.1)
-
Step 700
700
#7224D7
oklch(49.1% 0.242 295.2)
-
Step 800
800
#5C23AE
oklch(42.7% 0.201 294.9)
-
Step 900
900
#4B258A
oklch(37.8% 0.157 294.9)
-
Step 950
950 (this color)
#2B1750
oklch(26.8% 0.099 295)
#2B1750 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) | #002452 | 0.064 |
| Deuteranopia (no green cones) | #00224F | 0.063 |
| Tritanopia (no blue cones) | #212431 | 0.077 |
| Achromatopsia (no color) | #232323 | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B1750
#2B1750
oklch(26.8% 0.099 295)
- #252900
#252900
oklch(26.8% 0.061 115.3)
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 #2B1750, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.041
- Dark Purple #35063E ΔE 0.051
- Deep Purple #36013F ΔE 0.056
- Eggplant #380835 ΔE 0.064
- Eggplant Purple #430541 ΔE 0.066
- Midnight Blue #191970 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.067
- Midnight Purple #280137 ΔE 0.068
Use #2B1750 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.