#00010A
Closest named color: Almost Black (#070D0D). oklch(7.8% 0.037 262.3), rgb(0, 1, 10).
Aa
White text reads best on this color (20.81:1).
About this color
#00010A is a very dark, muted blue. In OKLCH its lightness is 8%, its chroma 0.037 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Almost Black (#070D0D), ΔE 0.082 away. White text reads best on it, at 20.81:1.
| Hue family | Blues |
| Lightness | very dark (8%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.00:1 |
| White text | 20.81:1 |
Values
| HEX | #00010A |
| RGB | rgb(0, 1, 10) |
| HSL | hsl(234, 100%, 2%) |
| OKLCH | oklch(7.8% 0.037 262.3) |
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 #00010A | 20.81:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #00010A | 1.00:1 | Fails | Lc 0.0 | Not readable |
| #00010A text on white | 20.81:1 | AAA | Lc 106.0 | Preferred for body text |
| #00010A 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
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D1DAEA
oklch(88.6% 0.024 262.1)
-
Step 300
300
#B2C1DE
oklch(80.9% 0.044 263.6)
-
Step 400
400
#89A1CD
oklch(70.7% 0.07 262.4)
-
Step 500
500
#6C89C0
oklch(63% 0.09 262.7)
-
Step 600
600
#5473AC
oklch(55.7% 0.096 261.9)
-
Step 700
700
#446094
oklch(49.1% 0.09 262)
-
Step 800
800
#384E78
oklch(42.6% 0.075 262.5)
-
Step 900
900
#314161
oklch(37.7% 0.059 263.5)
-
Step 950
950 (this color)
#00010A
oklch(7.8% 0.037 262.3)
#00010A 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) | #00020A | 0.012 |
| Deuteranopia (no green cones) | #00010A | 0.000 |
| Tritanopia (no blue cones) | #000204 | 0.024 |
| Achromatopsia (no color) | #010101 | 0.039 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00010A
#00010A
oklch(7.8% 0.037 262.3)
- #030100
#030100
oklch(7.5% 0.017 66.2)
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 #00010A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.082
- Midnight #03012D ΔE 0.082
- Dark Navy Blue #00022E ΔE 0.084
- Black #000000 ΔE 0.086
- Very Dark Blue #000133 ΔE 0.093
- Rich Navy #001219 ΔE 0.094
- Dark Navy #000435 ΔE 0.100
- Very Dark Brown #1D0200 ΔE 0.111
Use #00010A 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.