#290D21
Closest named color: Very Dark Purple (#2A0134). oklch(21.3% 0.056 339.7), rgb(41, 13, 33).
Aa
White text reads best on this color (17.89:1).
About this color
#290D21 is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.056 and its hue 340°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Purple (#2A0134), ΔE 0.051 away. White text reads best on it, at 17.89:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.056) |
| Temperature | warm |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.17:1 |
| White text | 17.89:1 |
Values
| HEX | #290D21 |
| RGB | rgb(41, 13, 33) |
| HSL | hsl(317, 52%, 11%) |
| OKLCH | oklch(21.3% 0.056 339.7) |
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 #290D21 | 17.89:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #290D21 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #290D21 text on white | 17.89:1 | AAA | Lc 104.4 | Preferred for body text |
| #290D21 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
#FAF3F7
oklch(97.1% 0.009 341.8)
-
Step 100
100
#F3E5EE
oklch(93.6% 0.019 338.7)
-
Step 200
200
#EBD0E1
oklch(88.5% 0.037 339.8)
-
Step 300
300
#DFB0CE
oklch(80.8% 0.067 340.2)
-
Step 400
400
#CD86B6
oklch(70.7% 0.107 339.6)
-
Step 500
500
#BE66A3
oklch(63.1% 0.135 339.9)
-
Step 600
600
#A94B8E
oklch(55.5% 0.147 339.9)
-
Step 700
700
#913C79
oklch(49.2% 0.137 339.9)
-
Step 800
800
#763262
oklch(42.7% 0.113 340.2)
-
Step 900
900
#5F2D50
oklch(37.7% 0.087 339.9)
-
Step 950
950 (this color)
#290D21
oklch(21.3% 0.056 339.7)
#290D21 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) | #0E1422 | 0.059 |
| Deuteranopia (no green cones) | #161920 | 0.053 |
| Tritanopia (no blue cones) | #2C0E15 | 0.026 |
| Achromatopsia (no color) | #171717 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #290D21
#290D21
oklch(21.3% 0.056 339.7)
- #001F11
#001F11
oklch(21.1% 0.047 160.5)
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 #290D21, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Purple #2A0134 ΔE 0.051
- Eggplant #380835 ΔE 0.053
- Midnight Purple #280137 ΔE 0.056
- Dark Plum #3F012C ΔE 0.058
- Aubergine #3D0734 ΔE 0.059
- Dark Maroon #3C0008 ΔE 0.062
- Dark Purple #35063E ΔE 0.064
- Rich Black #0D1B2A ΔE 0.066
Use #290D21 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.