#2B1D4B
Closest named color: Oxford Blue (#1B263B). oklch(27.5% 0.082 294.4), rgb(43, 29, 75).
Aa
White text reads best on this color (15.21:1).
About this color
#2B1D4B is a dark, moderately saturated purple. In OKLCH its lightness is 27%, its chroma 0.082 and its hue 294°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.051 away. White text reads best on it, at 15.21:1.
| Hue family | Purples |
| Lightness | dark (27%) |
| Chroma | moderately saturated (0.082) |
| Temperature | in between |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.38:1 |
| White text | 15.21:1 |
Values
| HEX | #2B1D4B |
| RGB | rgb(43, 29, 75) |
| HSL | hsl(258, 44%, 20%) |
| OKLCH | oklch(27.5% 0.082 294.4) |
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 #2B1D4B | 15.21:1 | AAA | Lc -104.7 | Preferred for body text |
| Black text on #2B1D4B | 1.38:1 | Fails | Lc 0.0 | Not readable |
| #2B1D4B text on white | 15.21:1 | AAA | Lc 101.9 | Preferred for body text |
| #2B1D4B 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
#F6F4FE
oklch(97.2% 0.013 295.3)
-
Step 100
100
#EAE7FB
oklch(93.6% 0.027 292.8)
-
Step 200
200
#DBD3FA
oklch(88.6% 0.054 294.7)
-
Step 300
300
#C4B5F9
oklch(80.9% 0.096 294.3)
-
Step 400
400
#A88BF7
oklch(70.8% 0.155 294.5)
-
Step 500
500
#9469F3
oklch(63.1% 0.198 294.4)
-
Step 600
600
#804BE1
oklch(55.6% 0.215 294.6)
-
Step 700
700
#6C3BC4
oklch(49.1% 0.2 294.2)
-
Step 800
800
#58329E
oklch(42.7% 0.166 294.5)
-
Step 900
900
#482E7E
oklch(37.8% 0.129 294.3)
-
Step 950
950 (this color)
#2B1D4B
oklch(27.5% 0.082 294.4)
#2B1D4B 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) | #07264D | 0.053 |
| Deuteranopia (no green cones) | #0B254A | 0.050 |
| Tritanopia (no blue cones) | #232730 | 0.067 |
| Achromatopsia (no color) | #262626 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B1D4B
#2B1D4B
oklch(27.5% 0.082 294.4)
- #272B00
#272B00
oklch(27.6% 0.062 115.1)
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 #2B1D4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.051
- Space Cadet #2B2D42 ΔE 0.055
- Dark Indigo #1F0954 ΔE 0.056
- Dark Purple #35063E ΔE 0.056
- Eggplant #380835 ΔE 0.064
- Deep Purple #36013F ΔE 0.064
- Dark #1B2431 ΔE 0.064
- Eggplant Purple #430541 ΔE 0.068
Use #2B1D4B 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.