#171C0E
Closest named color: Rich Black (#0D1B2A). oklch(21.7% 0.027 124.6), rgb(23, 28, 14).
Aa
White text reads best on this color (17.37:1).
About this color
#171C0E is a very dark close to neutral grey. In OKLCH its lightness is 22%, its chroma 0.027. It has too little chroma to lean warm or cool. The nearest named color is Rich Black (#0D1B2A), ΔE 0.056 away. White text reads best on it, at 17.37:1.
| Hue family | Neutrals |
| Lightness | very dark (22%) |
| Chroma | close to neutral grey (0.027) |
| Temperature | neutral |
| Nearest name | Rich Black (#0D1B2A) |
| Black text | 1.20:1 |
| White text | 17.37:1 |
Values
| HEX | #171C0E |
| RGB | rgb(23, 28, 14) |
| HSL | hsl(81, 33%, 8%) |
| OKLCH | oklch(21.7% 0.027 124.6) |
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 #171C0E | 17.37:1 | AAA | Lc -106.5 | Preferred for body text |
| Black text on #171C0E | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #171C0E text on white | 17.37:1 | AAA | Lc 104.2 | Preferred for body text |
| #171C0E text on black | 1.20:1 | 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
#F5F6F3
oklch(97.2% 0.004 121.6)
-
Step 100
100
#E8EBE4
oklch(93.6% 0.01 125.7)
-
Step 200
200
#D6DBCF
oklch(88.4% 0.017 125.3)
-
Step 300
300
#BCC4AE
oklch(80.8% 0.031 123.4)
-
Step 400
400
#99A784
oklch(70.8% 0.052 125.4)
-
Step 500
500
#819165
oklch(63.2% 0.065 124.5)
-
Step 600
600
#6A7B4C
oklch(55.7% 0.071 124.8)
-
Step 700
700
#58673D
oklch(49% 0.065 124.8)
-
Step 800
800
#485433
oklch(42.6% 0.054 124.9)
-
Step 900
900
#3C462C
oklch(37.7% 0.044 125.5)
-
Step 950
950 (this color)
#171C0E
oklch(21.7% 0.027 124.6)
#171C0E 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) | #1D1A0D | 0.013 |
| Deuteranopia (no green cones) | #1D1A0F | 0.014 |
| Tritanopia (no blue cones) | #181B18 | 0.020 |
| Achromatopsia (no color) | #1A1A1A | 0.027 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #171C0E
#171C0E
oklch(21.7% 0.027 124.6)
- #1D1724
#1D1724
oklch(21.8% 0.026 305.4)
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 #171C0E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Black #0D1B2A ΔE 0.056
- Jet #212529 ΔE 0.056
- Dark Brown #341C02 ΔE 0.060
- Rich Navy #001219 ΔE 0.065
- Dark #1B2431 ΔE 0.065
- Almost Black #070D0D ΔE 0.069
- Dark Forest Green #002D04 ΔE 0.072
- Very Dark Green #062E03 ΔE 0.074
Use #171C0E 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.