#010518
Closest named color: Midnight (#03012D). oklch(12.4% 0.046 263.3), rgb(1, 5, 24).
Aa
White text reads best on this color (20.26:1).
About this color
#010518 is a very dark, muted blue. In OKLCH its lightness is 12%, its chroma 0.046 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight (#03012D), ΔE 0.046 away. White text reads best on it, at 20.26:1.
| Hue family | Blues |
| Lightness | very dark (12%) |
| Chroma | muted (0.046) |
| Temperature | cool |
| Nearest name | Midnight (#03012D) |
| Black text | 1.03:1 |
| White text | 20.26:1 |
Values
| HEX | #010518 |
| RGB | rgb(1, 5, 24) |
| HSL | hsl(230, 92%, 5%) |
| OKLCH | oklch(12.4% 0.046 263.3) |
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 #010518 | 20.26:1 | AAA | Lc -107.8 | Preferred for body text |
| Black text on #010518 | 1.03:1 | Fails | Lc 0.0 | Not readable |
| #010518 text on white | 20.26:1 | AAA | Lc 105.9 | Preferred for body text |
| #010518 text on black | 1.03:1 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CFDAEE
oklch(88.6% 0.03 262.5)
-
Step 300
300
#AEC1E5
oklch(80.9% 0.055 263.2)
-
Step 400
400
#84A0D8
oklch(70.6% 0.088 263.8)
-
Step 500
500
#6688CD
oklch(63.1% 0.111 263.5)
-
Step 600
600
#4D71BA
oklch(55.6% 0.121 263.2)
-
Step 700
700
#3E5EA0
oklch(49% 0.113 263.3)
-
Step 800
800
#334D82
oklch(42.6% 0.094 263.2)
-
Step 900
900
#2D4168
oklch(37.8% 0.072 262.8)
-
Step 950
950 (this color)
#010518
oklch(12.4% 0.046 263.3)
#010518 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) | #000719 | 0.010 |
| Deuteranopia (no green cones) | #000518 | 0.004 |
| Tritanopia (no blue cones) | #00090C | 0.037 |
| Achromatopsia (no color) | #060606 | 0.046 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #010518
#010518
oklch(12.4% 0.046 263.3)
- #0B0500
#0B0500
oklch(12.2% 0.026 78.2)
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 #010518, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight #03012D ΔE 0.046
- Dark Navy Blue #00022E ΔE 0.047
- Almost Black #070D0D ΔE 0.052
- Rich Navy #001219 ΔE 0.054
- Very Dark Blue #000133 ΔE 0.058
- Dark Navy #000435 ΔE 0.061
- Rich Black #0D1B2A ΔE 0.095
- Very Dark Brown #1D0200 ΔE 0.095
Use #010518 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.