#240B33
Closest named color: Midnight Purple (#280137). oklch(21.4% 0.078 310.2), rgb(36, 11, 51).
Aa
White text reads best on this color (17.93:1).
About this color
#240B33 is a very dark, moderately saturated purple. In OKLCH its lightness is 21%, its chroma 0.078 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Midnight Purple (#280137), ΔE 0.025 away. White text reads best on it, at 17.93:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.078) |
| Temperature | in between |
| Nearest name | Midnight Purple (#280137) |
| Black text | 1.17:1 |
| White text | 17.93:1 |
Values
| HEX | #240B33 |
| RGB | rgb(36, 11, 51) |
| HSL | hsl(278, 65%, 12%) |
| OKLCH | oklch(21.4% 0.078 310.2) |
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 #240B33 | 17.93:1 | AAA | Lc -106.6 | Preferred for body text |
| Black text on #240B33 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #240B33 text on white | 17.93:1 | AAA | Lc 104.4 | Preferred for body text |
| #240B33 text on black | 1.17:1 | 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
#F8F3FC
oklch(97.1% 0.013 310.5)
-
Step 100
100
#EFE5F8
oklch(93.5% 0.027 309.2)
-
Step 200
200
#E4D0F3
oklch(88.5% 0.052 310.8)
-
Step 300
300
#D3B0ED
oklch(80.8% 0.092 310.4)
-
Step 400
400
#BD84E4
oklch(70.6% 0.147 310.4)
-
Step 500
500
#AC62DC
oklch(63.1% 0.187 310.1)
-
Step 600
600
#9844CA
oklch(55.7% 0.204 310.2)
-
Step 700
700
#8134AE
oklch(49% 0.189 310.1)
-
Step 800
800
#692D8D
oklch(42.7% 0.156 310.1)
-
Step 900
900
#552A71
oklch(37.7% 0.122 309.7)
-
Step 950
950 (this color)
#240B33
oklch(21.4% 0.078 310.2)
#240B33 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) | #001634 | 0.068 |
| Deuteranopia (no green cones) | #061732 | 0.062 |
| Tritanopia (no blue cones) | #22131D | 0.053 |
| Achromatopsia (no color) | #171717 | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #240B33
#240B33
oklch(21.4% 0.078 310.2)
- #101E00
#101E00
oklch(21.4% 0.058 130)
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 #240B33, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Purple #280137 ΔE 0.025
- Very Dark Purple #2A0134 ΔE 0.025
- Dark Purple #35063E ΔE 0.045
- Eggplant #380835 ΔE 0.048
- Deep Purple #36013F ΔE 0.049
- Aubergine #3D0734 ΔE 0.060
- Dark Indigo #1F0954 ΔE 0.065
- Rich Black #0D1B2A ΔE 0.067
Use #240B33 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.