#18190F
Closest named color: Rich Black (#0D1B2A). oklch(20.9% 0.019 112.7), rgb(24, 25, 15).
Aa
White text reads best on this color (17.72:1).
About this color
#18190F is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.019. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.052 away. White text reads best on it, at 17.72:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.019) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.18:1 |
| White text | 17.72:1 |
Values
| HEX | #18190F |
| RGB | rgb(24, 25, 15) |
| HSL | hsl(66, 25%, 8%) |
| OKLCH | oklch(20.9% 0.019 112.7) |
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 #18190F | 17.72:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #18190F | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #18190F text on white | 17.72:1 | AAA | Lc 104.5 | Preferred for body text |
| #18190F text on black | 1.18:1 | 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
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#EAEAE5
oklch(93.6% 0.007 106.5)
-
Step 200
200
#D9DAD1
oklch(88.5% 0.012 111.8)
-
Step 300
300
#C0C2B2
oklch(80.8% 0.022 112.7)
-
Step 400
400
#A0A38A
oklch(70.6% 0.035 112.9)
-
Step 500
500
#898D6D
oklch(63.1% 0.046 113.5)
-
Step 600
600
#737755
oklch(55.7% 0.05 113.5)
-
Step 700
700
#616445
oklch(49.2% 0.047 112.6)
-
Step 800
800
#4F5139
oklch(42.6% 0.038 111.9)
-
Step 900
900
#414331
oklch(37.5% 0.029 113)
-
Step 950
950 (this color)
#18190F
oklch(20.9% 0.019 112.7)
#18190F 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) | #1B180E | 0.006 |
| Deuteranopia (no green cones) | #1A180F | 0.005 |
| Tritanopia (no blue cones) | #191816 | 0.015 |
| Achromatopsia (no color) | #181818 | 0.019 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #18190F
#18190F
oklch(20.9% 0.019 112.7)
- #181720
#181720
oklch(21% 0.018 289.9)
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 #18190F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.052
- Rich Navy #001219 ΔE 0.058
- Jet #212529 ΔE 0.059
- Almost Black #070D0D ΔE 0.060
- Dark Brown #341C02 ΔE 0.063
- Dark #1B2431 ΔE 0.066
- Very Dark Brown #1D0200 ΔE 0.079
- Dark Forest Green #002D04 ΔE 0.084
Use #18190F 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.