#091517
Closest named color: Rich Navy (#001219). oklch(18.5% 0.018 209.1), rgb(9, 21, 23).
Aa
White text reads best on this color (18.56:1).
About this color
#091517 is a very dark close to neutral grey. In OKLCH its lightness is 19%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.022 away. White text reads best on it, at 18.56:1.
| Hue family | Neutrals |
| Lightness | very dark (19%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.13:1 |
| White text | 18.56:1 |
Values
| HEX | #091517 |
| RGB | rgb(9, 21, 23) |
| HSL | hsl(189, 44%, 6%) |
| OKLCH | oklch(18.5% 0.018 209.1) |
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 #091517 | 18.56:1 | AAA | Lc -107.2 | Preferred for body text |
| Black text on #091517 | 1.13:1 | Fails | Lc 0.0 | Not readable |
| #091517 text on white | 18.56:1 | AAA | Lc 105.1 | Preferred for body text |
| #091517 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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D1DBDD
oklch(88.4% 0.011 211)
-
Step 300
300
#B2C5C8
oklch(81% 0.021 208.1)
-
Step 400
400
#89A7AC
oklch(70.7% 0.034 208.8)
-
Step 500
500
#6B9197
oklch(63.1% 0.043 208.2)
-
Step 600
600
#527B82
oklch(55.5% 0.047 209.3)
-
Step 700
700
#43686E
oklch(49.2% 0.043 208.7)
-
Step 800
800
#37555A
oklch(42.8% 0.036 209)
-
Step 900
900
#30464A
oklch(37.8% 0.028 210)
-
Step 950
950 (this color)
#091517
oklch(18.5% 0.018 209.1)
#091517 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) | #131417 | 0.017 |
| Deuteranopia (no green cones) | #111217 | 0.017 |
| Tritanopia (no blue cones) | #041616 | 0.009 |
| Achromatopsia (no color) | #131313 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #091517
#091517
oklch(18.5% 0.018 209.1)
- #1A100E
#1A100E
oklch(18.6% 0.018 31.5)
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 #091517, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.022
- Almost Black #070D0D ΔE 0.034
- Rich Black #0D1B2A ΔE 0.041
- Dark #1B2431 ΔE 0.075
- Jet #212529 ΔE 0.078
- Very Dark Brown #1D0200 ΔE 0.079
- Dark Navy #000435 ΔE 0.090
- Oxford Blue #1B263B ΔE 0.091
Use #091517 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.