#170A09
Closest named color: Very Dark Brown (#1D0200). oklch(16.4% 0.023 24.8), rgb(23, 10, 9).
Aa
White text reads best on this color (19.37:1).
About this color
#170A09 is a very dark close to neutral grey. In OKLCH its lightness is 16%, its chroma 0.023. It has too little chroma to lean warm or cool. The nearest named color is Very Dark Brown (#1D0200), ΔE 0.034 away. White text reads best on it, at 19.37:1.
| Hue family | Neutrals |
| Lightness | very dark (16%) |
| Chroma | close to neutral grey (0.023) |
| Temperature | neutral |
| Nearest name | Very Dark Brown (#1D0200) |
| Black text | 1.08:1 |
| White text | 19.37:1 |
Values
| HEX | #170A09 |
| RGB | rgb(23, 10, 9) |
| HSL | hsl(4, 44%, 6%) |
| OKLCH | oklch(16.4% 0.023 24.8) |
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 #170A09 | 19.37:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #170A09 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #170A09 text on white | 19.37:1 | AAA | Lc 105.6 | Preferred for body text |
| #170A09 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
#F8F4F4
oklch(97% 0.004 17.2)
-
Step 100
100
#EFE8E7
oklch(93.6% 0.008 27.2)
-
Step 200
200
#E3D5D4
oklch(88.4% 0.016 22.4)
-
Step 300
300
#D2BAB8
oklch(80.9% 0.028 23.4)
-
Step 400
400
#BB9693
oklch(70.6% 0.045 23.7)
-
Step 500
500
#A97D78
oklch(63.2% 0.056 26.1)
-
Step 600
600
#946561
oklch(55.5% 0.062 24.6)
-
Step 700
700
#7E5450
oklch(49.1% 0.057 25.4)
-
Step 800
800
#674542
oklch(42.8% 0.048 24.8)
-
Step 900
900
#543A38
oklch(37.7% 0.037 23.9)
-
Step 950
950 (this color)
#170A09
oklch(16.4% 0.023 24.8)
#170A09 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) | #0D0C09 | 0.024 |
| Deuteranopia (no green cones) | #100E09 | 0.021 |
| Tritanopia (no blue cones) | #1A080A | 0.010 |
| Achromatopsia (no color) | #0D0D0D | 0.024 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #170A09
#170A09
oklch(16.4% 0.023 24.8)
- #021113
#021113
oklch(16.4% 0.024 205.3)
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 #170A09, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Very Dark Brown #1D0200 ΔE 0.034
- Almost Black #070D0D ΔE 0.035
- Rich Navy #001219 ΔE 0.054
- Rich Black #0D1B2A ΔE 0.076
- Dark Maroon #3C0008 ΔE 0.091
- Dark Brown #341C02 ΔE 0.098
- Midnight #03012D ΔE 0.102
- Very Dark Purple #2A0134 ΔE 0.103
Use #170A09 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.