#09170D
Closest named color: Rich Navy (#001219). oklch(18.8% 0.028 152.1), rgb(9, 23, 13).
Aa
White text reads best on this color (18.42:1).
About this color
#09170D 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 0.040 away. White text reads best on it, at 18.42:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.13:1 |
| White text | 18.42:1 |
Values
| HEX | #09170D |
| RGB | rgb(9, 23, 13) |
| HSL | hsl(137, 44%, 6%) |
| OKLCH | oklch(18.8% 0.028 152.1) |
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 #09170D | 18.42:1 | AAA | Lc -107.1 | Preferred for body text |
| Black text on #09170D | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #09170D text on white | 18.42:1 | AAA | Lc 105.0 | Preferred for body text |
| #09170D text on black | 1.13:1 | 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
#D1DDD3
oklch(88.6% 0.019 150.5)
-
Step 300
300
#B1C7B6
oklch(80.8% 0.034 152.3)
-
Step 400
400
#88AB90
oklch(70.8% 0.055 151.7)
-
Step 500
500
#6A9675
oklch(63.2% 0.069 151.8)
-
Step 600
600
#51805E
oklch(55.6% 0.074 152.2)
-
Step 700
700
#416C4D
oklch(49.1% 0.069 152.1)
-
Step 800
800
#36583F
oklch(42.7% 0.057 151.8)
-
Step 900
900
#2F4936
oklch(37.8% 0.045 152.2)
-
Step 950
950 (this color)
#09170D
oklch(18.8% 0.028 152.1)
#09170D 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) | #17150C | 0.024 |
| Deuteranopia (no green cones) | #15130E | 0.025 |
| Tritanopia (no blue cones) | #071714 | 0.014 |
| Achromatopsia (no color) | #141414 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09170D
#09170D
oklch(18.8% 0.028 152.1)
- #1B0F19
#1B0F19
oklch(19% 0.027 332.7)
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 #09170D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.040
- Almost Black #070D0D ΔE 0.042
- Rich Black #0D1B2A ΔE 0.057
- Jet #212529 ΔE 0.080
- Very Dark Brown #1D0200 ΔE 0.081
- Dark #1B2431 ΔE 0.083
- Dark Brown #341C02 ΔE 0.089
- Dark Forest Green #002D04 ΔE 0.089
Use #09170D 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.