#2D1F57
Closest named color: Dark Indigo (#1F0954). oklch(29.1% 0.097 290.6), rgb(45, 31, 87).
Aa
White text reads best on this color (14.53:1).
About this color
#2D1F57 is a dark, moderately saturated purple. In OKLCH its lightness is 29%, its chroma 0.097 and its hue 291°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Dark Indigo (#1F0954), ΔE 0.058 away. White text reads best on it, at 14.53:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.097) |
| Temperature | in between |
| Nearest name | Dark Indigo (#1F0954) |
| Black text | 1.44:1 |
| White text | 14.53:1 |
Values
| HEX | #2D1F57 |
| RGB | rgb(45, 31, 87) |
| HSL | hsl(255, 47%, 23%) |
| OKLCH | oklch(29.1% 0.097 290.6) |
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 #2D1F57 | 14.53:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #2D1F57 | 1.44:1 | Fails | Lc 0.0 | Not readable |
| #2D1F57 text on white | 14.53:1 | AAA | Lc 101.1 | Preferred for body text |
| #2D1F57 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
#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
#7C3EF9
oklch(55.6% 0.255 290.7)
-
Step 700
700
#692DD9
oklch(49.1% 0.237 290.6)
-
Step 800
800
#5529AF
oklch(42.7% 0.196 290.6)
-
Step 900
900
#45298A
oklch(37.7% 0.152 290.5)
-
Step 950
950 (this color)
#2D1F57
oklch(29.1% 0.097 290.6)
#2D1F57 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) | #002A59 | 0.059 |
| Deuteranopia (no green cones) | #002856 | 0.059 |
| Tritanopia (no blue cones) | #212C37 | 0.080 |
| Achromatopsia (no color) | #292929 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D1F57
#2D1F57
oklch(29.1% 0.097 290.6)
- #2D2E00
#2D2E00
oklch(29% 0.064 111.1)
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 #2D1F57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Indigo #1F0954 ΔE 0.058
- Midnight Blue #191970 ΔE 0.060
- Marine #042E60 ΔE 0.060
- Space Cadet #2B2D42 ΔE 0.062
- Prussian Blue #1D3557 ΔE 0.066
- Oxford Blue #1B263B ΔE 0.066
- Dark Purple #35063E ΔE 0.070
- Deep Purple #36013F ΔE 0.075
Use #2D1F57 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.