#17211F
Closest named color: Jet (#212529). oklch(23.7% 0.015 181.4), rgb(23, 33, 31).
Aa
White text reads best on this color (16.48:1).
About this color
#17211F is a very dark close to neutral grey. In OKLCH its lightness is 24%, its chroma 0.015. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.028 away. White text reads best on it, at 16.48:1.
| Hue family | Neutrals |
| Lightness | very dark (24%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.27:1 |
| White text | 16.48:1 |
Values
| HEX | #17211F |
| RGB | rgb(23, 33, 31) |
| HSL | hsl(168, 18%, 11%) |
| OKLCH | oklch(23.7% 0.015 181.4) |
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 #17211F | 16.48:1 | AAA | Lc -105.9 | Preferred for body text |
| Black text on #17211F | 1.27:1 | Fails | Lc 0.0 | Not readable |
| #17211F text on white | 16.48:1 | AAA | Lc 103.4 | Preferred for body text |
| #17211F text on black | 1.27:1 | 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
#F4F6F5
oklch(97.1% 0.002 165.1)
-
Step 100
100
#E6EBEA
oklch(93.6% 0.006 183)
-
Step 200
200
#D3DBD9
oklch(88.5% 0.009 179.6)
-
Step 300
300
#B5C4C1
oklch(80.8% 0.017 182.6)
-
Step 400
400
#8EA7A2
oklch(70.8% 0.029 182)
-
Step 500
500
#72918B
oklch(63.1% 0.036 182)
-
Step 600
600
#5A7B75
oklch(55.6% 0.039 182.4)
-
Step 700
700
#4A6862
oklch(49.2% 0.036 181)
-
Step 800
800
#3D5550
oklch(42.8% 0.03 180.5)
-
Step 900
900
#344642
oklch(37.7% 0.024 179.8)
-
Step 950
950 (this color)
#17211F
oklch(23.7% 0.015 181.4)
#17211F 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) | #20201F | 0.016 |
| Deuteranopia (no green cones) | #1E1E1F | 0.015 |
| Tritanopia (no blue cones) | #142120 | 0.005 |
| Achromatopsia (no color) | #1F1F1F | 0.015 |
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 #17211F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.028
- Dark #1B2431 ΔE 0.035
- Rich Black #0D1B2A ΔE 0.039
- Oxford Blue #1B263B ΔE 0.053
- Dark Brown #341C02 ΔE 0.064
- Rich Navy #001219 ΔE 0.072
- Dark Forest Green #002D04 ΔE 0.075
- Very Dark Green #062E03 ΔE 0.076
Use #17211F 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.