#23182B
Closest named color: Rich Black (#0D1B2A). oklch(23.2% 0.039 310.1), rgb(35, 24, 43).
Aa
White text reads best on this color (16.97:1).
About this color
#23182B is a very dark, muted purple. In OKLCH its lightness is 23%, its chroma 0.039 and its hue 310°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Rich Black (#0D1B2A), ΔE 0.039 away. White text reads best on it, at 16.97:1.
| Hue family | Purples |
| Lightness | very dark (23%) |
| Chroma | muted (0.039) |
| Temperature | in between |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.23:1 |
| White text | 16.97:1 |
Values
| HEX | #23182B |
| RGB | rgb(35, 24, 43) |
| HSL | hsl(275, 28%, 13%) |
| OKLCH | oklch(23.2% 0.039 310.1) |
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 #23182B | 16.97:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #23182B | 1.23:1 | Fails | Lc 0.0 | Not readable |
| #23182B text on white | 16.97:1 | AAA | Lc 103.8 | Preferred for body text |
| #23182B text on black | 1.23:1 | 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
#F7F4F9
oklch(97.1% 0.007 312.3)
-
Step 100
100
#ECE8F1
oklch(93.7% 0.013 306)
-
Step 200
200
#DED5E6
oklch(88.5% 0.025 309.3)
-
Step 300
300
#CAB9D7
oklch(80.9% 0.045 310.6)
-
Step 400
400
#AF94C3
oklch(70.7% 0.073 310.5)
-
Step 500
500
#9B79B4
oklch(63.1% 0.094 310.2)
-
Step 600
600
#8661A0
oklch(55.6% 0.103 310.3)
-
Step 700
700
#715089
oklch(49% 0.096 309.9)
-
Step 800
800
#5C426F
oklch(42.7% 0.079 309.9)
-
Step 900
900
#4C385A
oklch(37.7% 0.062 310.6)
-
Step 950
950 (this color)
#23182B
oklch(23.2% 0.039 310.1)
#23182B 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) | #141C2C | 0.029 |
| Deuteranopia (no green cones) | #171D2A | 0.027 |
| Tritanopia (no blue cones) | #221B1F | 0.029 |
| Achromatopsia (no color) | #1C1C1C | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23182B
#23182B
oklch(23.2% 0.039 310.1)
- #17210D
#17210D
oklch(23.2% 0.039 130.6)
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 #23182B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.039
- Dark #1B2431 ΔE 0.040
- Jet #212529 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.050
- Eggplant #380835 ΔE 0.062
- Very Dark Purple #2A0134 ΔE 0.064
- Midnight Purple #280137 ΔE 0.066
- Dark Purple #35063E ΔE 0.068
Use #23182B 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.