#12170F
Closest named color: Rich Navy (#001219). oklch(19.6% 0.017 133.9), rgb(18, 23, 15).
Aa
White text reads best on this color (18.17:1).
About this color
#12170F is a very dark close to neutral grey. In OKLCH its lightness is 20%, its chroma 0.017. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.045 away. White text reads best on it, at 18.17:1.
| Hue family | Neutrals |
| Lightness | very dark (20%) |
| Chroma | close to neutral grey (0.017) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.15:1 |
| White text | 18.17:1 |
Values
| HEX | #12170F |
| RGB | rgb(18, 23, 15) |
| HSL | hsl(98, 21%, 7%) |
| OKLCH | oklch(19.6% 0.017 133.9) |
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 #12170F | 18.17:1 | AAA | Lc -107.0 | Preferred for body text |
| Black text on #12170F | 1.15:1 | Fails | Lc 0.0 | Not readable |
| #12170F text on white | 18.17:1 | AAA | Lc 104.9 | Preferred for body text |
| #12170F text on black | 1.15:1 | 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
#E8EBE7
oklch(93.7% 0.006 137.8)
-
Step 200
200
#D6DBD3
oklch(88.5% 0.012 133.4)
-
Step 300
300
#BBC4B6
oklch(80.9% 0.022 134.1)
-
Step 400
400
#98A591
oklch(70.6% 0.032 134.5)
-
Step 500
500
#7F8F76
oklch(63% 0.041 134.3)
-
Step 600
600
#687A5E
oklch(55.7% 0.047 134.5)
-
Step 700
700
#57664E
oklch(49% 0.042 133.9)
-
Step 800
800
#475340
oklch(42.6% 0.034 134.1)
-
Step 900
900
#3C4536
oklch(37.7% 0.028 132.9)
-
Step 950
950 (this color)
#12170F
oklch(19.6% 0.017 133.9)
#12170F 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 | 0.012 |
| Deuteranopia (no green cones) | #17150F | 0.012 |
| Tritanopia (no blue cones) | #121615 | 0.014 |
| Achromatopsia (no color) | #161616 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #12170F
#12170F
oklch(19.6% 0.017 133.9)
- #18131B
#18131B
oklch(19.7% 0.018 312.7)
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 #12170F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.045
- Almost Black #070D0D ΔE 0.047
- Rich Black #0D1B2A ΔE 0.051
- Jet #212529 ΔE 0.070
- Dark #1B2431 ΔE 0.073
- Very Dark Brown #1D0200 ΔE 0.075
- Dark Brown #341C02 ΔE 0.076
- Dark Forest Green #002D04 ΔE 0.090
Use #12170F 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.