#18201B
Closest named color: Jet (#212529). oklch(23.4% 0.015 157.6), rgb(24, 32, 27).
Aa
White text reads best on this color (16.64:1).
About this color
#18201B is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.034 away. White text reads best on it, at 16.64:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.26:1 |
| White text | 16.64:1 |
Values
| HEX | #18201B |
| RGB | rgb(24, 32, 27) |
| HSL | hsl(143, 14%, 11%) |
| OKLCH | oklch(23.4% 0.015 157.6) |
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 #18201B | 16.64:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #18201B | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #18201B text on white | 16.64:1 | AAA | Lc 103.6 | Preferred for body text |
| #18201B text on black | 1.26:1 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E7EBE8
oklch(93.6% 0.006 153.8)
-
Step 200
200
#D4DBD6
oklch(88.5% 0.01 155.1)
-
Step 300
300
#B8C4BC
oklch(80.9% 0.017 156.8)
-
Step 400
400
#93A69A
oklch(70.7% 0.027 157.9)
-
Step 500
500
#789081
oklch(63% 0.035 157.8)
-
Step 600
600
#607B6A
oklch(55.6% 0.041 157.2)
-
Step 700
700
#506759
oklch(49.1% 0.035 158.1)
-
Step 800
800
#415448
oklch(42.6% 0.031 157.1)
-
Step 900
900
#37463D
oklch(37.8% 0.025 158.6)
-
Step 950
950 (this color)
#18201B
oklch(23.4% 0.015 157.6)
#18201B 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) | #201F1B | 0.014 |
| Deuteranopia (no green cones) | #1E1E1B | 0.012 |
| Tritanopia (no blue cones) | #17201F | 0.008 |
| Achromatopsia (no color) | #1E1E1E | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18201B
#18201B
oklch(23.4% 0.015 157.6)
- #231B20
#231B20
oklch(23.4% 0.015 340.5)
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 #18201B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.034
- Dark #1B2431 ΔE 0.042
- Rich Black #0D1B2A ΔE 0.043
- Oxford Blue #1B263B ΔE 0.060
- Dark Brown #341C02 ΔE 0.060
- Rich Navy #001219 ΔE 0.071
- Dark Forest Green #002D04 ΔE 0.073
- Very Dark Green #062E03 ΔE 0.074
Use #18201B 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.