#172015
Closest named color: Jet (#212529). oklch(23.1% 0.024 140), rgb(23, 32, 21).
Aa
White text reads best on this color (16.74:1).
About this color
#172015 is a very dark close to neutral grey. In OKLCH its lightness is 23%, its chroma 0.024. It has too little chroma to lean warm or cool. The nearest named color is Jet (#212529), ΔE 0.043 away. White text reads best on it, at 16.74:1.
| Hue family | Neutrals |
| Lightness | very dark (23%) |
| Chroma | close to neutral grey (0.024) |
| Temperature | neutral |
| Nearest name | Jet (#212529) |
| Black text | 1.25:1 |
| White text | 16.74:1 |
Values
| HEX | #172015 |
| RGB | rgb(23, 32, 21) |
| HSL | hsl(109, 21%, 10%) |
| OKLCH | oklch(23.1% 0.024 140) |
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 #172015 | 16.74:1 | AAA | Lc -106.1 | Preferred for body text |
| Black text on #172015 | 1.25:1 | Fails | Lc 0.0 | Not readable |
| #172015 text on white | 16.74:1 | AAA | Lc 103.7 | Preferred for body text |
| #172015 text on black | 1.25:1 | 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
#F4F6F4
oklch(97.1% 0.003 145.5)
-
Step 100
100
#E7EBE6
oklch(93.6% 0.008 139.4)
-
Step 200
200
#D4DCD2
oklch(88.6% 0.016 139.4)
-
Step 300
300
#B7C6B4
oklch(81% 0.03 140.5)
-
Step 400
400
#92A88D
oklch(70.7% 0.046 139.9)
-
Step 500
500
#779371
oklch(63.2% 0.059 140.1)
-
Step 600
600
#5F7D59
oklch(55.6% 0.064 140.4)
-
Step 700
700
#4F6949
oklch(49.1% 0.059 139.8)
-
Step 800
800
#40563C
oklch(42.7% 0.05 140.7)
-
Step 900
900
#374733
oklch(37.8% 0.039 139.4)
-
Step 950
950 (this color)
#172015
oklch(23.1% 0.024 140)
#172015 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) | #211E14 | 0.018 |
| Deuteranopia (no green cones) | #1F1D16 | 0.018 |
| Tritanopia (no blue cones) | #171F1D | 0.017 |
| Achromatopsia (no color) | #1E1E1E | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #172015
#172015
oklch(23.1% 0.024 140)
- #221924
#221924
oklch(22.9% 0.025 320.1)
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 #172015, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Jet #212529 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.052
- Dark #1B2431 ΔE 0.052
- Dark Brown #341C02 ΔE 0.058
- Dark Forest Green #002D04 ΔE 0.065
- Very Dark Green #062E03 ΔE 0.067
- Oxford Blue #1B263B ΔE 0.071
- Rich Navy #001219 ΔE 0.072
Use #172015 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.