#09101D
Closest named color: Rich Navy (#001219). oklch(17.3% 0.029 262.1), rgb(9, 16, 29).
Aa
White text reads best on this color (19.03:1).
About this color
#09101D is a very dark close to neutral grey. In OKLCH its lightness is 17%, its chroma 0.029. It has too little chroma to lean warm or cool. The nearest named color is Rich Navy (#001219), ΔE 0.021 away. White text reads best on it, at 19.03:1.
| Hue family | Neutrals |
| Lightness | very dark (17%) |
| Chroma | close to neutral grey (0.029) |
| Temperature | neutral |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.10:1 |
| White text | 19.03:1 |
Values
| HEX | #09101D |
| RGB | rgb(9, 16, 29) |
| HSL | hsl(219, 53%, 7%) |
| OKLCH | oklch(17.3% 0.029 262.1) |
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 #09101D | 19.03:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #09101D | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #09101D text on white | 19.03:1 | AAA | Lc 105.4 | Preferred for body text |
| #09101D text on black | 1.10:1 | 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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E6EAF1
oklch(93.6% 0.01 261.8)
-
Step 200
200
#D2D9E6
oklch(88.4% 0.019 263)
-
Step 300
300
#B5C1D8
oklch(80.9% 0.035 263.5)
-
Step 400
400
#8EA1C4
oklch(70.7% 0.056 262.6)
-
Step 500
500
#728AB5
oklch(63.1% 0.071 261.9)
-
Step 600
600
#5A73A1
oklch(55.5% 0.078 262.2)
-
Step 700
700
#4A618A
oklch(49.2% 0.072 261.6)
-
Step 800
800
#3D4F70
oklch(42.7% 0.06 262.1)
-
Step 900
900
#34425A
oklch(37.7% 0.045 261)
-
Step 950
950 (this color)
#09101D
oklch(17.3% 0.029 262.1)
#09101D 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) | #0B111E | 0.006 |
| Deuteranopia (no green cones) | #090F1D | 0.004 |
| Tritanopia (no blue cones) | #031315 | 0.026 |
| Achromatopsia (no color) | #101010 | 0.029 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #09101D
#09101D
oklch(17.3% 0.029 262.1)
- #160F02
#160F02
oklch(17.3% 0.03 85.6)
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 #09101D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.021
- Almost Black #070D0D ΔE 0.034
- Rich Black #0D1B2A ΔE 0.045
- Midnight #03012D ΔE 0.067
- Dark Navy #000435 ΔE 0.068
- Dark Navy Blue #00022E ΔE 0.068
- Very Dark Blue #000133 ΔE 0.074
- Very Dark Brown #1D0200 ΔE 0.080
Use #09101D 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.