#22181B
Closest named color: Rich Black (#0D1B2A). oklch(22.3% 0.017 358.8), rgb(34, 24, 27).
Aa
White text reads best on this color (17.29:1).
About this color
#22181B is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.044 away. White text reads best on it, at 17.29:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.29:1 |
Values
| HEX | #22181B |
| RGB | rgb(34, 24, 27) |
| HSL | hsl(342, 17%, 11%) |
| OKLCH | oklch(22.3% 0.017 358.8) |
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 #22181B | 17.29:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #22181B | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #22181B text on white | 17.29:1 | AAA | Lc 104.2 | Preferred for body text |
| #22181B text on black | 1.21:1 | 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
#F7F5F5
oklch(97.2% 0.002 17.2)
-
Step 100
100
#EDE8EA
oklch(93.5% 0.006 350.8)
-
Step 200
200
#E0D6D9
oklch(88.5% 0.012 357)
-
Step 300
300
#CCBCC0
oklch(81% 0.019 0.5)
-
Step 400
400
#B299A0
oklch(70.7% 0.031 359.2)
-
Step 500
500
#9F8089
oklch(63.2% 0.04 359)
-
Step 600
600
#8A6973
oklch(55.7% 0.044 358.7)
-
Step 700
700
#755760
oklch(49.1% 0.042 359)
-
Step 800
800
#5F474F
oklch(42.6% 0.035 356.8)
-
Step 900
900
#4E3C41
oklch(37.7% 0.026 360)
-
Step 950
950 (this color)
#22181B
oklch(22.3% 0.017 358.8)
#22181B 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) | #191A1B | 0.019 |
| Deuteranopia (no green cones) | #1B1B1B | 0.017 |
| Tritanopia (no blue cones) | #241819 | 0.006 |
| Achromatopsia (no color) | #1B1B1B | 0.017 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #22181B
#22181B
oklch(22.3% 0.017 358.8)
- #131E1B
#131E1B
oklch(22.3% 0.017 176)
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 #22181B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.044
- Jet #212529 ΔE 0.045
- Dark #1B2431 ΔE 0.050
- Dark Brown #341C02 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.066
- Rich Navy #001219 ΔE 0.070
- Dark Maroon #3C0008 ΔE 0.075
- Almost Black #070D0D ΔE 0.075
Use #22181B 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.