#010307
Closest named color: Almost Black (#070D0D). oklch(9.5% 0.018 253.1), rgb(1, 3, 7).
Aa
White text reads best on this color (20.64:1).
About this color
#010307 is a very dark close to neutral grey. In OKLCH its lightness is 10%, its chroma 0.018. It has too little chroma to lean warm or cool. The nearest named color is Almost Black (#070D0D), ΔE 0.059 away. White text reads best on it, at 20.64:1.
| Hue family | Neutrals |
| Lightness | very dark (10%) |
| Chroma | close to neutral grey (0.018) |
| Temperature | neutral |
| Nearest name | Almost Black (#070D0D) |
| Black text | 1.01:1 |
| White text | 20.64:1 |
Values
| HEX | #010307 |
| RGB | rgb(1, 3, 7) |
| HSL | hsl(220, 75%, 2%) |
| OKLCH | oklch(9.5% 0.018 253.1) |
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 #010307 | 20.64:1 | AAA | Lc -107.9 | Preferred for body text |
| Black text on #010307 | 1.01:1 | Fails | Lc 0.0 | Not readable |
| #010307 text on white | 20.64:1 | AAA | Lc 106.0 | Preferred for body text |
| #010307 text on black | 1.01:1 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E7EAEE
oklch(93.6% 0.006 255.5)
-
Step 200
200
#D4DAE1
oklch(88.6% 0.012 252.1)
-
Step 300
300
#B7C2CE
oklch(80.9% 0.021 250.4)
-
Step 400
400
#92A2B5
oklch(70.6% 0.033 252.8)
-
Step 500
500
#788BA3
oklch(63% 0.042 254.4)
-
Step 600
600
#60758E
oklch(55.5% 0.046 253)
-
Step 700
700
#506279
oklch(49% 0.043 254.7)
-
Step 800
800
#415062
oklch(42.6% 0.036 253.2)
-
Step 900
900
#374350
oklch(37.8% 0.027 250.6)
-
Step 950
950 (this color)
#010307
oklch(9.5% 0.018 253.1)
#010307 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) | #020307 | 0.006 |
| Deuteranopia (no green cones) | #010307 | 0.000 |
| Tritanopia (no blue cones) | #000404 | 0.017 |
| Achromatopsia (no color) | #030303 | 0.018 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010307
#010307
oklch(9.5% 0.018 253.1)
- #050200
#050200
oklch(9.2% 0.02 73.1)
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 #010307, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Almost Black #070D0D ΔE 0.059
- Rich Navy #001219 ΔE 0.076
- Midnight #03012D ΔE 0.085
- Dark Navy Blue #00022E ΔE 0.087
- Very Dark Brown #1D0200 ΔE 0.088
- Black #000000 ΔE 0.097
- Very Dark Blue #000133 ΔE 0.097
- Dark Navy #000435 ΔE 0.101
Use #010307 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.