#22181F
Closest named color: Rich Black (#0D1B2A). oklch(22.4% 0.02 337.5), rgb(34, 24, 31).
Aa
White text reads best on this color (17.23:1).
About this color
#22181F is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.020. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.040 away. White text reads best on it, at 17.23:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.020) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.21:1 |
| White text | 17.23:1 |
Values
| HEX | #22181F |
| RGB | rgb(34, 24, 31) |
| HSL | hsl(318, 17%, 11%) |
| OKLCH | oklch(22.4% 0.02 337.5) |
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 #22181F | 17.23:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #22181F | 1.21:1 | Fails | Lc 0.0 | Not readable |
| #22181F text on white | 17.23:1 | AAA | Lc 104.1 | Preferred for body text |
| #22181F 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
#F7F5F6
oklch(97.2% 0.002 345.2)
-
Step 100
100
#EDE8EB
oklch(93.6% 0.007 340.4)
-
Step 200
200
#DFD6DC
oklch(88.5% 0.013 337.6)
-
Step 300
300
#CCBBC6
oklch(80.9% 0.024 338.7)
-
Step 400
400
#B198A9
oklch(70.7% 0.038 337.7)
-
Step 500
500
#9E7E94
oklch(63.1% 0.05 337.8)
-
Step 600
600
#88677F
oklch(55.5% 0.054 336.4)
-
Step 700
700
#74566B
oklch(49.2% 0.05 337.7)
-
Step 800
800
#5E4657
oklch(42.6% 0.042 337.2)
-
Step 900
900
#4D3B48
oklch(37.7% 0.033 336.4)
-
Step 950
950 (this color)
#22181F
oklch(22.4% 0.02 337.5)
#22181F 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) | #181A1F | 0.020 |
| Deuteranopia (no green cones) | #1A1B1F | 0.018 |
| Tritanopia (no blue cones) | #23181A | 0.010 |
| Achromatopsia (no color) | #1B1B1B | 0.021 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #22181F
#22181F
oklch(22.4% 0.02 337.5)
- #141F18
#141F18
oklch(22.6% 0.021 156.4)
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 #22181F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.040
- Jet #212529 ΔE 0.044
- Dark #1B2431 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.061
- Dark Brown #341C02 ΔE 0.064
- Rich Navy #001219 ΔE 0.071
- Dark Maroon #3C0008 ΔE 0.077
- Almost Black #070D0D ΔE 0.078
Use #22181F 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.