#16171E
Closest named color: Rich Black (#0D1B2A). oklch(20.7% 0.014 278.7), rgb(22, 23, 30).
Aa
White text reads best on this color (17.86:1).
About this color
#16171E is a very dark close to neutral grey. In OKLCH its lightness is 21%, its chroma 0.014. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.026 away. White text reads best on it, at 17.86:1.
| Hue family | Neutrals |
| Lightness | very dark (21%) |
| Chroma | close to neutral grey (0.014) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.17:1 |
| White text | 17.86:1 |
Values
| HEX | #16171E |
| RGB | rgb(22, 23, 30) |
| HSL | hsl(233, 15%, 10%) |
| OKLCH | oklch(20.7% 0.014 278.7) |
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 #16171E | 17.86:1 | AAA | Lc -106.8 | Preferred for body text |
| Black text on #16171E | 1.17:1 | Fails | Lc 0.0 | Not readable |
| #16171E text on white | 17.86:1 | AAA | Lc 104.6 | Preferred for body text |
| #16171E 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9E9ED
oklch(93.5% 0.005 286.3)
-
Step 200
200
#D7D9DF
oklch(88.6% 0.008 271.3)
-
Step 300
300
#BEC0CB
oklch(81% 0.016 277.8)
-
Step 400
400
#9C9FB1
oklch(70.6% 0.026 278.2)
-
Step 500
500
#84889E
oklch(63.1% 0.033 277.3)
-
Step 600
600
#6E7189
oklch(55.5% 0.037 279.5)
-
Step 700
700
#5C5F74
oklch(49.1% 0.034 278.7)
-
Step 800
800
#4B4E5F
oklch(42.8% 0.028 277.3)
-
Step 900
900
#3F414D
oklch(37.8% 0.021 277.9)
-
Step 950
950 (this color)
#16171E
oklch(20.7% 0.014 278.7)
#16171E 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) | #15181E | 0.004 |
| Deuteranopia (no green cones) | #15171E | 0.002 |
| Tritanopia (no blue cones) | #141819 | 0.013 |
| Achromatopsia (no color) | #171717 | 0.014 |
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 #16171E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.026
- Rich Navy #001219 ΔE 0.046
- Dark #1B2431 ΔE 0.053
- Jet #212529 ΔE 0.056
- Almost Black #070D0D ΔE 0.057
- Oxford Blue #1B263B ΔE 0.069
- Dark Brown #341C02 ΔE 0.081
- Very Dark Brown #1D0200 ΔE 0.083
Use #16171E 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.