#171015
Closest named color: Almost Black (#070D0D). oklch(18.4% 0.015 336.7), rgb(23, 16, 21).
Aa
White text reads best on this color (18.72:1).
About this color
#171015 is a very dark close to neutral grey. In OKLCH its lightness is 18%, its chroma 0.015. 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 18.72:1.
| Hue family | Neutrals |
| Lightness | very dark (18%) |
| Chroma | close to neutral grey (0.015) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.12:1 |
| White text | 18.72:1 |
Values
| HEX | #171015 |
| RGB | rgb(23, 16, 21) |
| HSL | hsl(317, 18%, 8%) |
| OKLCH | oklch(18.4% 0.015 336.7) |
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 #171015 | 18.72:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #171015 | 1.12:1 | Fails | Lc 0.0 | Not readable |
| #171015 text on white | 18.72:1 | AAA | Lc 105.2 | Preferred for body text |
| #171015 text on black | 1.12:1 | 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
#F6F5F6
oklch(97.1% 0.002 325.6)
-
Step 100
100
#ECE8EB
oklch(93.5% 0.006 334)
-
Step 200
200
#DED7DB
oklch(88.6% 0.009 341.8)
-
Step 300
300
#C9BCC5
oklch(80.9% 0.019 336.6)
-
Step 400
400
#AD9AA7
oklch(70.7% 0.029 337.3)
-
Step 500
500
#998192
oklch(63.1% 0.038 336.6)
-
Step 600
600
#836B7C
oklch(55.7% 0.039 336.8)
-
Step 700
700
#6F5969
oklch(49.2% 0.037 336.1)
-
Step 800
800
#5A4955
oklch(42.7% 0.03 336.9)
-
Step 900
900
#4A3D46
oklch(37.7% 0.023 337.3)
-
Step 950
950 (this color)
#171015
oklch(18.4% 0.015 336.7)
#171015 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) | #101115 | 0.015 |
| Deuteranopia (no green cones) | #121215 | 0.012 |
| Tritanopia (no blue cones) | #181012 | 0.006 |
| Achromatopsia (no color) | #121212 | 0.015 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #171015
#171015
oklch(18.4% 0.015 336.7)
- #0D1510
#0D1510
oklch(18.6% 0.016 157.1)
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 #171015, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.040
- Rich Navy #001219 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.050
- Very Dark Brown #1D0200 ΔE 0.058
- Dark #1B2431 ΔE 0.079
- Jet #212529 ΔE 0.080
- Very Dark Purple #2A0134 ΔE 0.088
- Dark Brown #341C02 ΔE 0.089
Use #171015 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.