#15170F
Closest named color: Rich Navy (#001219). oklch(20% 0.016 119.2), rgb(21, 23, 15).
Aa
White text reads best on this color (18.08:1).
About this color
#15170F is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.016. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.049 away. White text reads best on it, at 18.08:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.016) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.16:1 |
| White text | 18.08:1 |
Values
| HEX | #15170F |
| RGB | rgb(21, 23, 15) |
| HSL | hsl(75, 21%, 7%) |
| OKLCH | oklch(20% 0.016 119.2) |
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 #15170F | 18.08:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #15170F | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #15170F text on white | 18.08:1 | AAA | Lc 104.8 | Preferred for body text |
| #15170F text on black | 1.16:1 | 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
#F5F6F4
oklch(97.2% 0.003 128.5)
-
Step 100
100
#E9EAE6
oklch(93.5% 0.005 117.9)
-
Step 200
200
#D8DAD3
oklch(88.5% 0.01 119.6)
-
Step 300
300
#BFC2B5
oklch(80.8% 0.018 117.4)
-
Step 400
400
#9EA48F
oklch(70.8% 0.031 120.2)
-
Step 500
500
#868D73
oklch(63% 0.039 119.8)
-
Step 600
600
#70775C
oklch(55.6% 0.041 119.6)
-
Step 700
700
#5E644C
oklch(49.1% 0.038 119.2)
-
Step 800
800
#4D523E
oklch(42.8% 0.032 119.2)
-
Step 900
900
#404435
oklch(37.8% 0.025 119.7)
-
Step 950
950 (this color)
#15170F
oklch(20% 0.016 119.2)
#15170F 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) | #18160F | 0.007 |
| Deuteranopia (no green cones) | #18160F | 0.007 |
| Tritanopia (no blue cones) | #161615 | 0.014 |
| Achromatopsia (no color) | #161616 | 0.016 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #15170F
#15170F
oklch(20% 0.016 119.2)
- #17141C
#17141C
oklch(19.9% 0.016 302)
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 #15170F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.049
- Almost Black #070D0D ΔE 0.050
- Rich Black #0D1B2A ΔE 0.051
- Jet #212529 ΔE 0.067
- Dark #1B2431 ΔE 0.071
- Dark Brown #341C02 ΔE 0.072
- Very Dark Brown #1D0200 ΔE 0.073
- Oxford Blue #1B263B ΔE 0.089
Use #15170F 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.