#17190F
Closest named color: Rich Black (#0D1B2A). oklch(20.8% 0.019 117.3), rgb(23, 25, 15).
Aa
White text reads best on this color (17.76:1).
About this color
#17190F 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 17.76:1.
| 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 | 17.76:1 |
Values
| HEX | #17190F |
| RGB | rgb(23, 25, 15) |
| HSL | hsl(72, 25%, 8%) |
| OKLCH | oklch(20.8% 0.019 117.3) |
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 #17190F | 17.76:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #17190F | 1.18:1 | Fails | Lc 0.0 | Not readable |
| #17190F text on white | 17.76:1 | AAA | Lc 104.6 | Preferred for body text |
| #17190F 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
#E9EAE6
oklch(93.5% 0.005 117.9)
-
Step 200
200
#D8DAD1
oklch(88.4% 0.012 116.8)
-
Step 300
300
#BFC3B3
oklch(81% 0.022 118.3)
-
Step 400
400
#9EA48B
oklch(70.7% 0.036 118.3)
-
Step 500
500
#878E6E
oklch(63.2% 0.047 117.8)
-
Step 600
600
#717756
oklch(55.5% 0.049 116.4)
-
Step 700
700
#5E6446
oklch(49% 0.046 117.3)
-
Step 800
800
#4D523A
oklch(42.7% 0.038 117.6)
-
Step 900
900
#404432
oklch(37.7% 0.03 118)
-
Step 950
950 (this color)
#17190F
oklch(20.8% 0.019 117.3)
#17190F 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) | #1A180E | 0.006 |
| Deuteranopia (no green cones) | #1A180F | 0.007 |
| Tritanopia (no blue cones) | #181816 | 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°).
- #17190F
#17190F
oklch(20.8% 0.019 117.3)
- #191620
#191620
oklch(20.8% 0.02 298.4)
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 #17190F, 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 0.056
- Almost Black #070D0D ΔE 0.059
- Jet #212529 ΔE 0.060
- Dark Brown #341C02 ΔE 0.064
- Dark #1B2431 ΔE 0.067
- Very Dark Brown #1D0200 ΔE 0.079
- Dark Forest Green #002D04 ΔE 0.084
Use #17190F 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.