#0B170C
Closest named color: Rich Navy (#001219). oklch(18.9% 0.028 146.3), rgb(11, 23, 12).
Aa
White text reads best on this color (18.38:1).
About this color
#0B170C is a very dark close to neutral grey. In OKLCH its lightness is 19%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.042 away. White text reads best on it, at 18.38:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.14:1 |
| White text | 18.38:1 |
Values
| HEX | #0B170C |
| RGB | rgb(11, 23, 12) |
| HSL | hsl(125, 35%, 7%) |
| OKLCH | oklch(18.9% 0.028 146.3) |
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 #0B170C | 18.38:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #0B170C | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #0B170C text on white | 18.38:1 | AAA | Lc 105.0 | Preferred for body text |
| #0B170C text on black | 1.14:1 | 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
#E6ECE6
oklch(93.7% 0.01 145.5)
-
Step 200
200
#D2DDD2
oklch(88.6% 0.019 145.4)
-
Step 300
300
#B3C7B4
oklch(80.9% 0.034 146.6)
-
Step 400
400
#8CAA8D
oklch(70.7% 0.053 145.9)
-
Step 500
500
#6F9571
oklch(63.1% 0.068 146)
-
Step 600
600
#567F59
oklch(55.5% 0.074 146.3)
-
Step 700
700
#466B49
oklch(49% 0.068 146.4)
-
Step 800
800
#3A573C
oklch(42.6% 0.056 146.2)
-
Step 900
900
#324834
oklch(37.7% 0.044 147)
-
Step 950
950 (this color)
#0B170C
oklch(18.9% 0.028 146.3)
#0B170C 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) | #17150B | 0.022 |
| Deuteranopia (no green cones) | #16140D | 0.022 |
| Tritanopia (no blue cones) | #0A1614 | 0.017 |
| Achromatopsia (no color) | #141414 | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0B170C
#0B170C
oklch(18.9% 0.028 146.3)
- #1A0F1A
#1A0F1A
oklch(18.9% 0.028 326.6)
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 #0B170C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.042
- Almost Black #070D0D ΔE 0.043
- Rich Black #0D1B2A ΔE 0.058
- Very Dark Brown #1D0200 ΔE 0.079
- Jet #212529 ΔE 0.079
- Dark #1B2431 ΔE 0.083
- Dark Brown #341C02 ΔE 0.086
- Dark Forest Green #002D04 ΔE 0.088
Use #0B170C 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.