#0A0307
Closest named color: Almost Black (#070D0D). oklch(11.6% 0.022 341.6), rgb(10, 3, 7).
Aa
White text reads best on this color (20.40:1).
About this color
#0A0307 is a very dark close to neutral grey. In OKLCH its lightness is 12%, its chroma 0.022. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.048 away. White text reads best on it, at 20.40:1.
| Hue family | Neutrals |
| Lightness | very dark (12%) |
| Chroma | close to neutral grey (0.022) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.02:1 |
| White text | 20.40:1 |
Values
| HEX | #0A0307 |
| RGB | rgb(10, 3, 7) |
| HSL | hsl(326, 54%, 3%) |
| OKLCH | oklch(11.6% 0.022 341.6) |
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 #0A0307 | 20.40:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #0A0307 | 1.02:1 | Fails | Lc 0.0 | Not readable |
| #0A0307 text on white | 20.40:1 | AAA | Lc 106.0 | Preferred for body text |
| #0A0307 text on black | 1.02:1 | 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
#F7F4F6
oklch(97% 0.004 337.4)
-
Step 100
100
#EEE8EB
oklch(93.7% 0.008 345.4)
-
Step 200
200
#E0D6DC
oklch(88.6% 0.014 340.6)
-
Step 300
300
#CDBAC5
oklch(80.8% 0.026 342)
-
Step 400
400
#B497A8
oklch(70.8% 0.042 342.2)
-
Step 500
500
#A17D93
oklch(63.1% 0.054 341.5)
-
Step 600
600
#8B667D
oklch(55.5% 0.058 341.4)
-
Step 700
700
#765569
oklch(49.1% 0.052 342.2)
-
Step 800
800
#604556
oklch(42.6% 0.045 341)
-
Step 900
900
#4F3A47
oklch(37.6% 0.036 341.3)
-
Step 950
950 (this color)
#0A0307
oklch(11.6% 0.022 341.6)
#0A0307 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) | #030407 | 0.024 |
| Deuteranopia (no green cones) | #050507 | 0.019 |
| Tritanopia (no blue cones) | #0B0304 | 0.010 |
| Achromatopsia (no color) | #050505 | 0.022 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A0307
#0A0307
oklch(11.6% 0.022 341.6)
- #010703
#010703
oklch(11.6% 0.022 156.8)
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 #0A0307, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.048
- Very Dark Brown #1D0200 ΔE 0.056
- Rich Navy #001219 ΔE 0.070
- Midnight #03012D ΔE 0.087
- Dark Navy Blue #00022E ΔE 0.092
- Very Dark Blue #000133 ΔE 0.101
- Dark Navy #000435 ΔE 0.103
- Rich Black #0D1B2A ΔE 0.110
Use #0A0307 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.