#290B23
Closest named color: Very Dark Purple (#2A0134). oklch(21.1% 0.062 336.1), rgb(41, 11, 35).
Aa
White text reads best on this color (18.00:1).
About this color
#290B23 is a very dark, muted purple. In OKLCH its lightness is 21%, its chroma 0.062 and its hue 336°. Its hue sits on the warm side of the wheel. The nearest named color is Very Dark Purple (#2A0134), ΔE 0.044 away. White text reads best on it, at 18.00:1.
| Hue family | Purples |
| Lightness | very dark (21%) |
| Chroma | muted (0.062) |
| Temperature | warm |
| Nearest name | Very Dark Purple (#2A0134) |
| Black text | 1.16:1 |
| White text | 18.00:1 |
Values
| HEX | #290B23 |
| RGB | rgb(41, 11, 35) |
| HSL | hsl(312, 58%, 10%) |
| OKLCH | oklch(21.1% 0.062 336.1) |
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 #290B23 | 18.00:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #290B23 | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #290B23 text on white | 18.00:1 | AAA | Lc 104.5 | Preferred for body text |
| #290B23 text on black | 1.16:1 | 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
#FAF3F8
oklch(97.1% 0.01 335.5)
-
Step 100
100
#F4E5EF
oklch(93.7% 0.021 337.7)
-
Step 200
200
#EBCFE3
oklch(88.4% 0.041 336.1)
-
Step 300
300
#E0AFD3
oklch(80.9% 0.074 336)
-
Step 400
400
#CE83BC
oklch(70.6% 0.118 336)
-
Step 500
500
#C062AB
oklch(63.1% 0.15 336.3)
-
Step 600
600
#AB4697
oklch(55.6% 0.164 336)
-
Step 700
700
#923781
oklch(49% 0.151 335.6)
-
Step 800
800
#772F69
oklch(42.8% 0.125 335.8)
-
Step 900
900
#602A55
oklch(37.6% 0.098 335.7)
-
Step 950
950 (this color)
#290B23
oklch(21.1% 0.062 336.1)
#290B23 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) | #0B1424 | 0.065 |
| Deuteranopia (no green cones) | #141822 | 0.058 |
| Tritanopia (no blue cones) | #2B0D15 | 0.031 |
| Achromatopsia (no color) | #171717 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #290B23
#290B23
oklch(21.1% 0.062 336.1)
- #001F0E
#001F0E
oklch(21% 0.051 156)
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 #290B23, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Purple #2A0134 ΔE 0.044
- Eggplant #380835 ΔE 0.049
- Midnight Purple #280137 ΔE 0.049
- Dark Plum #3F012C ΔE 0.056
- Aubergine #3D0734 ΔE 0.057
- Dark Purple #35063E ΔE 0.059
- Deep Purple #36013F ΔE 0.064
- Dark Maroon #3C0008 ΔE 0.065
Use #290B23 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.