#2B2840
Closest named color: Space Cadet (#2B2D42). oklch(29.2% 0.043 289.1), rgb(43, 40, 64).
Aa
White text reads best on this color (14.18:1).
About this color
#2B2840 is a dark, muted purple. In OKLCH its lightness is 29%, its chroma 0.043 and its hue 289°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.016 away. White text reads best on it, at 14.18:1.
| Hue family | Purples |
| Lightness | dark (29%) |
| Chroma | muted (0.043) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.48:1 |
| White text | 14.18:1 |
Values
| HEX | #2B2840 |
| RGB | rgb(43, 40, 64) |
| HSL | hsl(248, 23%, 20%) |
| OKLCH | oklch(29.2% 0.043 289.1) |
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 #2B2840 | 14.18:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #2B2840 | 1.48:1 | Fails | Lc 0.0 | Not readable |
| #2B2840 text on white | 14.18:1 | AAA | Lc 100.9 | Preferred for body text |
| #2B2840 text on black | 1.48:1 | 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
#F5F5FA
oklch(97.2% 0.007 286.3)
-
Step 100
100
#E9E8F3
oklch(93.5% 0.015 290.3)
-
Step 200
200
#D8D6EB
oklch(88.4% 0.029 290.2)
-
Step 300
300
#BFBCE0
oklch(80.9% 0.05 289)
-
Step 400
400
#9F98D1
oklch(70.6% 0.083 289.7)
-
Step 500
500
#887EC5
oklch(63.1% 0.106 289.5)
-
Step 600
600
#7267B1
oklch(55.7% 0.113 289)
-
Step 700
700
#605599
oklch(49.2% 0.107 289.3)
-
Step 800
800
#4E467C
oklch(42.8% 0.088 288.9)
-
Step 900
900
#413B64
oklch(37.8% 0.069 289.4)
-
Step 950
950 (this color)
#2B2840
oklch(29.2% 0.043 289.1)
#2B2840 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) | #212B41 | 0.018 |
| Deuteranopia (no green cones) | #212A3F | 0.018 |
| Tritanopia (no blue cones) | #262C31 | 0.036 |
| Achromatopsia (no color) | #2B2B2B | 0.043 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B2840
#2B2840
oklch(29.2% 0.043 289.1)
- #2D2D12
#2D2D12
oklch(29% 0.043 108.8)
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 #2B2840, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.016
- Oxford Blue #1B263B ΔE 0.030
- Gunmetal #293241 ΔE 0.033
- Dark #1B2431 ΔE 0.042
- Jet #212529 ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.053
- Dark Blue Grey #1F3B4D ΔE 0.061
- Onyx #343A40 ΔE 0.064
Use #2B2840 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.