#170F09
Closest named color: Almost Black (#070D0D). oklch(17.7% 0.018 58.3), rgb(23, 15, 9).
Aa
White text reads best on this color (18.94:1).
About this color
#170F09 is a very dark close to neutral grey. In OKLCH its lightness is 18%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.036 away. White text reads best on it, at 18.94:1.
| Hue family | Neutrals |
| Lightness | very dark (18%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.10:1 |
| White text | 18.94:1 |
Values
| HEX | #170F09 |
| RGB | rgb(23, 15, 9) |
| HSL | hsl(26, 44%, 6%) |
| OKLCH | oklch(17.7% 0.018 58.3) |
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 #170F09 | 18.94:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #170F09 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #170F09 text on white | 18.94:1 | AAA | Lc 105.4 | Preferred for body text |
| #170F09 text on black | 1.10:1 | 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
#F7F5F3
oklch(97.1% 0.003 67.8)
-
Step 100
100
#EDE9E6
oklch(93.6% 0.006 59.6)
-
Step 200
200
#DFD7D2
oklch(88.4% 0.011 54.5)
-
Step 300
300
#CCBEB3
oklch(81% 0.022 60.7)
-
Step 400
400
#B19C8C
oklch(70.7% 0.034 59.5)
-
Step 500
500
#9E8370
oklch(63% 0.043 57)
-
Step 600
600
#896D58
oklch(55.7% 0.047 58.5)
-
Step 700
700
#745B48
oklch(49.1% 0.044 58.7)
-
Step 800
800
#5F4A3B
oklch(42.7% 0.037 57.1)
-
Step 900
900
#4D3E33
oklch(37.6% 0.028 58)
-
Step 950
950 (this color)
#170F09
oklch(17.7% 0.018 58.3)
#170F09 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) | #111009 | 0.013 |
| Deuteranopia (no green cones) | #131109 | 0.011 |
| Tritanopia (no blue cones) | #190D0D | 0.013 |
| Achromatopsia (no color) | #111111 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170F09
#170F09
oklch(17.7% 0.018 58.3)
- #091218
#091218
oklch(17.6% 0.018 238.3)
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 #170F09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.036
- Very Dark Brown #1D0200 ΔE 0.046
- Rich Navy #001219 ΔE 0.050
- Rich Black #0D1B2A ΔE 0.067
- Dark Brown #341C02 ΔE 0.085
- Jet #212529 ΔE 0.089
- Dark Maroon #3C0008 ΔE 0.091
- Dark #1B2431 ΔE 0.093
Use #170F09 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.