#2A1F4A
Closest named color: Oxford Blue (#1B263B). oklch(27.7% 0.077 292.4), rgb(42, 31, 74).
Aa
White text reads best on this color (15.07:1).
About this color
#2A1F4A is a dark, moderately saturated purple. In OKLCH its lightness is 28%, its chroma 0.077 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 0.046 away. White text reads best on it, at 15.07:1.
| Hue family | Purples |
| Lightness | dark (28%) |
| Chroma | moderately saturated (0.077) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.39:1 |
| White text | 15.07:1 |
Values
| HEX | #2A1F4A |
| RGB | rgb(42, 31, 74) |
| HSL | hsl(255, 41%, 21%) |
| OKLCH | oklch(27.7% 0.077 292.4) |
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 #2A1F4A | 15.07:1 | AAA | Lc -104.6 | Preferred for body text |
| Black text on #2A1F4A | 1.39:1 | Fails | Lc 0.0 | Not readable |
| #2A1F4A text on white | 15.07:1 | AAA | Lc 101.8 | Preferred for body text |
| #2A1F4A text on black | 1.39:1 | 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
#F5F4FD
oklch(97% 0.012 291.3)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#D9D4F8
oklch(88.5% 0.049 291.7)
-
Step 300
300
#C2B6F7
oklch(80.9% 0.091 292.7)
-
Step 400
400
#A48EF3
oklch(70.8% 0.145 292.3)
-
Step 500
500
#8F6DEE
oklch(63% 0.186 292.4)
-
Step 600
600
#7B51DC
oklch(55.5% 0.202 292.5)
-
Step 700
700
#6840BF
oklch(49% 0.188 292.5)
-
Step 800
800
#55369B
oklch(42.7% 0.156 292.7)
-
Step 900
900
#45317B
oklch(37.7% 0.121 292.1)
-
Step 950
950 (this color)
#2A1F4A
oklch(27.7% 0.077 292.4)
#2A1F4A 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) | #0D274B | 0.046 |
| Deuteranopia (no green cones) | #0F2649 | 0.044 |
| Tritanopia (no blue cones) | #222831 | 0.062 |
| Achromatopsia (no color) | #262626 | 0.077 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A1F4A
#2A1F4A
oklch(27.7% 0.077 292.4)
- #292B00
#292B00
oklch(27.8% 0.062 112.5)
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 #2A1F4A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.049
- Dark #1B2431 ΔE 0.059
- Dark Indigo #1F0954 ΔE 0.060
- Dark Purple #35063E ΔE 0.061
- Marine #042E60 ΔE 0.066
- Gunmetal #293241 ΔE 0.066
- Eggplant #380835 ΔE 0.067
Use #2A1F4A 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.