#09170F
Closest named color: Rich Navy (#001219). oklch(18.9% 0.026 157.7), rgb(9, 23, 15).
Aa
White text reads best on this color (18.40:1).
About this color
#09170F is a very dark close to neutral grey. In OKLCH its lightness is 19%, its chroma 0.026. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.037 away. White text reads best on it, at 18.40:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.026) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.14:1 |
| White text | 18.40:1 |
Values
| HEX | #09170F |
| RGB | rgb(9, 23, 15) |
| HSL | hsl(146, 44%, 6%) |
| OKLCH | oklch(18.9% 0.026 157.7) |
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 #09170F | 18.40:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #09170F | 1.14:1 | Fails | Lc 0.0 | Not readable |
| #09170F text on white | 18.40:1 | AAA | Lc 105.0 | Preferred for body text |
| #09170F 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
#F3F6F4
oklch(97% 0.004 157.2)
-
Step 100
100
#E5ECE7
oklch(93.6% 0.01 155.1)
-
Step 200
200
#D0DDD5
oklch(88.5% 0.018 159.1)
-
Step 300
300
#B1C7B9
oklch(80.9% 0.031 157.7)
-
Step 400
400
#88AA95
oklch(70.7% 0.048 157.8)
-
Step 500
500
#69957B
oklch(63% 0.062 158.1)
-
Step 600
600
#508064
oklch(55.7% 0.068 157.7)
-
Step 700
700
#416C53
oklch(49.2% 0.063 157.6)
-
Step 800
800
#365844
oklch(42.8% 0.052 157.5)
-
Step 900
900
#2F4839
oklch(37.6% 0.04 157.5)
-
Step 950
950 (this color)
#09170F
oklch(18.9% 0.026 157.7)
#09170F 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) | #17150F | 0.025 |
| Deuteranopia (no green cones) | #15140F | 0.023 |
| Tritanopia (no blue cones) | #061715 | 0.012 |
| Achromatopsia (no color) | #141414 | 0.026 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09170F
#09170F
oklch(18.9% 0.026 157.7)
- #1B0F18
#1B0F18
oklch(18.9% 0.026 336.1)
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 #09170F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.037
- Almost Black #070D0D ΔE 0.041
- Rich Black #0D1B2A ΔE 0.054
- Jet #212529 ΔE 0.078
- Dark #1B2431 ΔE 0.080
- Very Dark Brown #1D0200 ΔE 0.081
- Dark Brown #341C02 ΔE 0.089
- Dark Forest Green #002D04 ΔE 0.091
Use #09170F 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.