#170911
Closest named color: Almost Black (#070D0D). oklch(16.5% 0.029 345.4), rgb(23, 9, 17).
Aa
White text reads best on this color (19.37:1).
About this color
#170911 is a very dark close to neutral grey. In OKLCH its lightness is 16%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.040 away. White text reads best on it, at 19.37:1.
| Hue family | Neutrals |
| Lightness | very dark (16%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.08:1 |
| White text | 19.37:1 |
Values
| HEX | #170911 |
| RGB | rgb(23, 9, 17) |
| HSL | hsl(326, 44%, 6%) |
| OKLCH | oklch(16.5% 0.029 345.4) |
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 #170911 | 19.37:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #170911 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #170911 text on white | 19.37:1 | AAA | Lc 105.6 | Preferred for body text |
| #170911 text on black | 1.08:1 | 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
#F8F4F6
oklch(97.1% 0.005 345.3)
-
Step 100
100
#EFE7EB
oklch(93.5% 0.01 345.4)
-
Step 200
200
#E3D4DC
oklch(88.4% 0.02 344)
-
Step 300
300
#D2B8C5
oklch(80.9% 0.034 346.2)
-
Step 400
400
#BA93A8
oklch(70.6% 0.055 345)
-
Step 500
500
#A97993
oklch(63.2% 0.069 345.6)
-
Step 600
600
#93617D
oklch(55.5% 0.075 345.2)
-
Step 700
700
#7D506A
oklch(49% 0.07 344.4)
-
Step 800
800
#664256
oklch(42.7% 0.058 345.4)
-
Step 900
900
#533847
oklch(37.7% 0.045 345)
-
Step 950
950 (this color)
#170911
oklch(16.5% 0.029 345.4)
#170911 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) | #0A0C11 | 0.030 |
| Deuteranopia (no green cones) | #0E0E11 | 0.026 |
| Tritanopia (no blue cones) | #19090C | 0.012 |
| Achromatopsia (no color) | #0D0D0D | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170911
#170911
oklch(16.5% 0.029 345.4)
- #02120B
#02120B
oklch(16.4% 0.029 165.5)
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 #170911, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.040
- Very Dark Brown #1D0200 ΔE 0.043
- Rich Navy #001219 ΔE 0.053
- Rich Black #0D1B2A ΔE 0.071
- Very Dark Purple #2A0134 ΔE 0.087
- Midnight #03012D ΔE 0.088
- Midnight Purple #280137 ΔE 0.090
- Dark Maroon #3C0008 ΔE 0.092
Use #170911 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.