#182018
Closest named color: Jet (#212529). oklch(23.3% 0.019 144.9), rgb(24, 32, 24).
Aa
White text reads best on this color (16.68:1).
About this color
#182018 is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.037 away. White text reads best on it, at 16.68:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.25:1 |
| White text | 16.68:1 |
Values
| HEX | #182018 |
| RGB | rgb(24, 32, 24) |
| HSL | hsl(120, 14%, 11%) |
| OKLCH | oklch(23.3% 0.019 144.9) |
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 #182018 | 16.68:1 | AAA | Lc -106.0 | Preferred for body text |
| Black text on #182018 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #182018 text on white | 16.68:1 | AAA | Lc 103.6 | Preferred for body text |
| #182018 text on black | 1.25:1 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE7
oklch(93.6% 0.007 145.5)
-
Step 200
200
#D4DBD4
oklch(88.4% 0.012 145.5)
-
Step 300
300
#B8C5B8
oklch(81% 0.023 145.4)
-
Step 400
400
#93A793
oklch(70.7% 0.036 145.2)
-
Step 500
500
#799178
oklch(63.1% 0.046 144)
-
Step 600
600
#617B61
oklch(55.5% 0.05 144.9)
-
Step 700
700
#506850
oklch(49.1% 0.047 144.8)
-
Step 800
800
#425542
oklch(42.8% 0.039 144.9)
-
Step 900
900
#384638
oklch(37.7% 0.03 145)
-
Step 950
950 (this color)
#182018
oklch(23.3% 0.019 144.9)
#182018 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) | #201E18 | 0.015 |
| Deuteranopia (no green cones) | #1F1E18 | 0.014 |
| Tritanopia (no blue cones) | #17201E | 0.011 |
| Achromatopsia (no color) | #1E1E1E | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #182018
#182018
oklch(23.3% 0.019 144.9)
- #221B23
#221B23
oklch(23.4% 0.018 322.1)
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 #182018, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.037
- Dark #1B2431 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.047
- Dark Brown #341C02 ΔE 0.058
- Oxford Blue #1B263B ΔE 0.065
- Dark Forest Green #002D04 ΔE 0.069
- Very Dark Green #062E03 ΔE 0.070
- Rich Navy #001219 ΔE 0.072
Use #182018 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.