#090B18
Closest named color: Almost Black (#070D0D). oklch(15.5% 0.028 275.9), rgb(9, 11, 24).
Aa
White text reads best on this color (19.57:1).
About this color
#090B18 is a very dark close to neutral grey. In OKLCH its lightness is 16%, its chroma 0.028. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.028 away. White text reads best on it, at 19.57:1.
| Hue family | Neutrals |
| Lightness | very dark (16%) |
| Chroma | close to neutral grey (0.028) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.07:1 |
| White text | 19.57:1 |
Values
| HEX | #090B18 |
| RGB | rgb(9, 11, 24) |
| HSL | hsl(232, 45%, 6%) |
| OKLCH | oklch(15.5% 0.028 275.9) |
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 #090B18 | 19.57:1 | AAA | Lc -107.6 | Preferred for body text |
| Black text on #090B18 | 1.07:1 | Fails | Lc 0.0 | Not readable |
| #090B18 text on white | 19.57:1 | AAA | Lc 105.7 | Preferred for body text |
| #090B18 text on black | 1.07:1 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8E9F0
oklch(93.5% 0.009 279.7)
-
Step 200
200
#D5D8E6
oklch(88.4% 0.019 276.3)
-
Step 300
300
#BABFD7
oklch(80.8% 0.034 276.3)
-
Step 400
400
#979EC2
oklch(70.6% 0.053 276.3)
-
Step 500
500
#7E86B3
oklch(63.1% 0.068 276.4)
-
Step 600
600
#67709F
oklch(55.7% 0.074 275.4)
-
Step 700
700
#565D88
oklch(49.1% 0.069 276.4)
-
Step 800
800
#464C6E
oklch(42.6% 0.057 276)
-
Step 900
900
#3B4059
oklch(37.8% 0.043 275.4)
-
Step 950
950 (this color)
#090B18
oklch(15.5% 0.028 275.9)
#090B18 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) | #070D19 | 0.008 |
| Deuteranopia (no green cones) | #060B18 | 0.006 |
| Tritanopia (no blue cones) | #050E10 | 0.025 |
| Achromatopsia (no color) | #0C0C0C | 0.028 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #090B18
#090B18
oklch(15.5% 0.028 275.9)
- #100C01
#100C01
oklch(15.5% 0.028 95.2)
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 #090B18, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.028
- Rich Navy #001219 ΔE 0.030
- Midnight #03012D ΔE 0.062
- Dark Navy Blue #00022E ΔE 0.064
- Rich Black #0D1B2A ΔE 0.064
- Dark Navy #000435 ΔE 0.069
- Very Dark Brown #1D0200 ΔE 0.072
- Very Dark Blue #000133 ΔE 0.072
Use #090B18 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.