#010109
Closest named color: Almost Black (#070D0D). oklch(8.1% 0.033 276.3), rgb(1, 1, 9).
Aa
White text reads best on this color (20.80:1).
About this color
#010109 is a very dark, muted blue. In OKLCH its lightness is 8%, its chroma 0.033 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.078 away. White text reads best on it, at 20.80:1.
| Hue family | Blues |
| Lightness | very dark (8%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.00:1 |
| White text | 20.80:1 |
Values
| HEX | #010109 |
| RGB | rgb(1, 1, 9) |
| HSL | hsl(240, 80%, 2%) |
| OKLCH | oklch(8.1% 0.033 276.3) |
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 #010109 | 20.80:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #010109 | 1.00:1 | Fails | Lc 0.0 | Not readable |
| #010109 text on white | 20.80:1 | AAA | Lc 106.0 | Preferred for body text |
| #010109 text on black | 1.00:1 | 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
#E8E9F1
oklch(93.6% 0.011 280.5)
-
Step 200
200
#D5D8E8
oklch(88.5% 0.022 277.5)
-
Step 300
300
#B9BFDA
oklch(80.9% 0.039 275.6)
-
Step 400
400
#969EC7
oklch(70.7% 0.061 276.1)
-
Step 500
500
#7C85B9
oklch(63% 0.079 276.3)
-
Step 600
600
#666FA5
oklch(55.7% 0.085 276.1)
-
Step 700
700
#555C8E
oklch(49.1% 0.08 276.9)
-
Step 800
800
#454C73
oklch(42.8% 0.065 275.5)
-
Step 900
900
#3A3F5D
oklch(37.7% 0.052 276.3)
-
Step 950
950 (this color)
#010109
oklch(8.1% 0.033 276.3)
#010109 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) | #000209 | 0.013 |
| Deuteranopia (no green cones) | #000109 | 0.010 |
| Tritanopia (no blue cones) | #000203 | 0.028 |
| Achromatopsia (no color) | #020202 | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010109
#010109
oklch(8.1% 0.033 276.3)
- #020200
#020200
oklch(8.2% 0.018 109.8)
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 #010109, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.078
- Midnight #03012D ΔE 0.083
- Dark Navy Blue #00022E ΔE 0.085
- Black #000000 ΔE 0.087
- Rich Navy #001219 ΔE 0.093
- Very Dark Blue #000133 ΔE 0.095
- Dark Navy #000435 ΔE 0.102
- Very Dark Brown #1D0200 ΔE 0.103
Use #010109 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.