#2A1D4D
Closest named color: Oxford Blue (#1B263B). oklch(27.5% 0.085 292.4), rgb(42, 29, 77).
Aa
White text reads best on this color (15.20:1).
About this color
#2A1D4D is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.085 and its hue 292°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.053 away. White text reads best on it, at 15.20:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.085) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.20:1 |
Values
| HEX | #2A1D4D |
| RGB | rgb(42, 29, 77) |
| HSL | hsl(256, 45%, 21%) |
| OKLCH | oklch(27.5% 0.085 292.4) |
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 #2A1D4D | 15.20:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #2A1D4D | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #2A1D4D text on white | 15.20:1 | AAA | Lc 101.9 | Preferred for body text |
| #2A1D4D text on black | 1.38:1 | 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
#F5F4FE
oklch(97.1% 0.013 290.8)
-
Step 100
100
#EAE7FC
oklch(93.7% 0.028 292.4)
-
Step 200
200
#D9D3FC
oklch(88.5% 0.056 291.9)
-
Step 300
300
#C2B5FC
oklch(80.9% 0.1 292.4)
-
Step 400
400
#A58BFB
oklch(70.8% 0.16 292.5)
-
Step 500
500
#9168F8
oklch(63% 0.206 292.6)
-
Step 600
600
#7D4AE7
oklch(55.6% 0.223 292.5)
-
Step 700
700
#6A39C9
oklch(49.1% 0.208 292.6)
-
Step 800
800
#5631A3
oklch(42.8% 0.173 292.4)
-
Step 900
900
#462D81
oklch(37.6% 0.135 292.4)
-
Step 950
950 (this color)
#2A1D4D
oklch(27.5% 0.085 292.4)
#2A1D4D 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) | #04264F | 0.053 |
| Deuteranopia (no green cones) | #07254C | 0.051 |
| Tritanopia (no blue cones) | #212731 | 0.068 |
| Achromatopsia (no color) | #262626 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A1D4D
#2A1D4D
oklch(27.5% 0.085 292.4)
- #282A00
#282A00
oklch(27.4% 0.061 112.5)
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 #2A1D4D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.053
- Dark Indigo #1F0954 ΔE 0.053
- Space Cadet #2B2D42 ΔE 0.057
- Dark Purple #35063E ΔE 0.058
- Deep Purple #36013F ΔE 0.065
- Dark #1B2431 ΔE 0.066
- Eggplant #380835 ΔE 0.067
- Marine #042E60 ΔE 0.067
Use #2A1D4D 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.