#040E24
Closest named color: Rich Navy (#001219). oklch(16.9% 0.049 261.7), rgb(4, 14, 36).
Aa
White text reads best on this color (19.20:1).
About this color
#040E24 is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.049 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.031 away. White text reads best on it, at 19.20:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.09:1 |
| White text | 19.20:1 |
Values
| HEX | #040E24 |
| RGB | rgb(4, 14, 36) |
| HSL | hsl(221, 80%, 8%) |
| OKLCH | oklch(16.9% 0.049 261.7) |
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 #040E24 | 19.20:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #040E24 | 1.09:1 | Fails | Lc 0.0 | Not readable |
| #040E24 text on white | 19.20:1 | AAA | Lc 105.4 | Preferred for body text |
| #040E24 text on black | 1.09:1 | 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
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEF
oklch(88.6% 0.032 261.7)
-
Step 300
300
#ACC1E7
oklch(80.8% 0.059 262.3)
-
Step 400
400
#81A1DB
oklch(70.8% 0.093 262)
-
Step 500
500
#6188D1
oklch(63% 0.119 262.1)
-
Step 600
600
#4871BE
oklch(55.6% 0.129 261.9)
-
Step 700
700
#395EA4
oklch(49% 0.12 261.9)
-
Step 800
800
#2F4D85
oklch(42.6% 0.1 261.8)
-
Step 900
900
#2A416A
oklch(37.7% 0.076 261.3)
-
Step 950
950 (this color)
#040E24
oklch(16.9% 0.049 261.7)
#040E24 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) | #041025 | 0.007 |
| Deuteranopia (no green cones) | #010D24 | 0.008 |
| Tritanopia (no blue cones) | #001317 | 0.038 |
| Achromatopsia (no color) | #0F0F0F | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040E24
#040E24
oklch(16.9% 0.049 261.7)
- #170D00
#170D00
oklch(16.9% 0.035 79.7)
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 #040E24, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.031
- Dark Navy #000435 ΔE 0.048
- Midnight #03012D ΔE 0.048
- Dark Navy Blue #00022E ΔE 0.048
- Almost Black #070D0D ΔE 0.048
- Rich Black #0D1B2A ΔE 0.051
- Very Dark Blue #000133 ΔE 0.054
- Navy Blue #001146 ΔE 0.068
Use #040E24 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.