#171716
Closest named color: Rich Black (#0D1B2A). oklch(20.4% 0.002 106.6), rgb(23, 23, 22).
Aa
White text reads best on this color (17.93:1).
About this color
#171716 is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.002. 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 17.93:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.002) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.93:1 |
Values
| HEX | #171716 |
| RGB | rgb(23, 23, 22) |
| HSL | hsl(60, 2%, 9%) |
| OKLCH | oklch(20.4% 0.002 106.6) |
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 #171716 | 17.93:1 | AAA | Lc -106.9 | Preferred for body text |
| Black text on #171716 | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #171716 text on white | 17.93:1 | AAA | Lc 104.7 | Preferred for body text |
| #171716 text on black | 1.17:1 | 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
#F5F5F5
oklch(97% 0 0)
-
Step 100
100
#EAEAE9
oklch(93.7% 0.001 106.4)
-
Step 200
200
#D9D9D8
oklch(88.5% 0.001 106.4)
-
Step 300
300
#C1C1BF
oklch(81% 0.003 106.5)
-
Step 400
400
#A1A19E
oklch(70.8% 0.004 106.5)
-
Step 500
500
#8A8A86
oklch(63.2% 0.006 106.6)
-
Step 600
600
#737370
oklch(55.5% 0.005 106.5)
-
Step 700
700
#61615E
oklch(49.2% 0.005 106.6)
-
Step 800
800
#4F4F4D
oklch(42.7% 0.003 106.5)
-
Step 900
900
#424240
oklch(37.8% 0.003 106.6)
-
Step 950
950 (this color)
#171716
oklch(20.4% 0.002 106.6)
#171716 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) | #171716 | 0.000 |
| Deuteranopia (no green cones) | #171716 | 0.000 |
| Tritanopia (no blue cones) | #171717 | 0.002 |
| Achromatopsia (no color) | #171717 | 0.002 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
This color is close to neutral, so it has no meaningful hue to rotate. Hue harmonies are omitted.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #171716, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.040
- Rich Navy #001219 ΔE 0.048
- Almost Black #070D0D ΔE 0.053
- Jet #212529 ΔE 0.059
- Dark #1B2431 ΔE 0.061
- Dark Brown #341C02 ΔE 0.072
- Very Dark Brown #1D0200 ΔE 0.075
- Oxford Blue #1B263B ΔE 0.079
Use #171716 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.