#040C22
Closest named color: Rich Navy (#001219). oklch(16.1% 0.048 264), rgb(4, 12, 34).
Aa
White text reads best on this color (19.42:1).
About this color
#040C22 is a very dark, muted blue. In OKLCH its lightness is 16%, its chroma 0.048 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.033 away. White text reads best on it, at 19.42:1.
| Hue family | Blues |
| Lightness | very dark (16%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.08:1 |
| White text | 19.42:1 |
Values
| HEX | #040C22 |
| RGB | rgb(4, 12, 34) |
| HSL | hsl(224, 79%, 7%) |
| OKLCH | oklch(16.1% 0.048 264) |
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 #040C22 | 19.42:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #040C22 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #040C22 text on white | 19.42:1 | AAA | Lc 105.6 | Preferred for body text |
| #040C22 text on black | 1.08:1 | 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
#CFD9EF
oklch(88.4% 0.032 266.1)
-
Step 300
300
#AEC1E7
oklch(80.9% 0.058 264.2)
-
Step 400
400
#83A0DA
oklch(70.6% 0.091 263.7)
-
Step 500
500
#6588D0
oklch(63.2% 0.116 263.7)
-
Step 600
600
#4C70BE
oklch(55.6% 0.128 264)
-
Step 700
700
#3D5DA3
oklch(48.9% 0.119 264)
-
Step 800
800
#334D84
oklch(42.8% 0.097 263.7)
-
Step 900
900
#2C406A
oklch(37.6% 0.077 263.8)
-
Step 950
950 (this color)
#040C22
oklch(16.1% 0.048 264)
#040C22 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) | #030F23 | 0.010 |
| Deuteranopia (no green cones) | #000C22 | 0.009 |
| Tritanopia (no blue cones) | #001115 | 0.038 |
| Achromatopsia (no color) | #0D0D0D | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040C22
#040C22
oklch(16.1% 0.048 264)
- #140C00
#140C00
oklch(16.1% 0.033 84.4)
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 #040C22, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.033
- Midnight #03012D ΔE 0.045
- Dark Navy Blue #00022E ΔE 0.045
- Almost Black #070D0D ΔE 0.046
- Dark Navy #000435 ΔE 0.047
- Very Dark Blue #000133 ΔE 0.052
- Rich Black #0D1B2A ΔE 0.059
- Navy Blue #001146 ΔE 0.073
Use #040C22 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.