#040E20
Closest named color: Rich Navy (#001219). oklch(16.5% 0.042 258.9), rgb(4, 14, 32).
Aa
White text reads best on this color (19.28:1).
About this color
#040E20 is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.042 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.025 away. White text reads best on it, at 19.28:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.08:1 |
| White text | 19.28:1 |
Values
| HEX | #040E20 |
| RGB | rgb(4, 14, 32) |
| HSL | hsl(219, 78%, 7%) |
| OKLCH | oklch(16.5% 0.042 258.9) |
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 #040E20 | 19.28:1 | AAA | Lc -107.5 | Preferred for body text |
| Black text on #040E20 | 1.08:1 | Fails | Lc 0.0 | Not readable |
| #040E20 text on white | 19.28:1 | AAA | Lc 105.5 | Preferred for body text |
| #040E20 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#AEC2E1
oklch(80.9% 0.049 259.1)
-
Step 400
400
#83A2D2
oklch(70.7% 0.079 259)
-
Step 500
500
#648AC6
oklch(63% 0.101 259.3)
-
Step 600
600
#4B73B3
oklch(55.6% 0.11 259.4)
-
Step 700
700
#3C619A
oklch(49.2% 0.101 258.8)
-
Step 800
800
#324F7D
oklch(42.8% 0.084 259.3)
-
Step 900
900
#2C4264
oklch(37.7% 0.065 258.8)
-
Step 950
950 (this color)
#040E20
oklch(16.5% 0.042 258.9)
#040E20 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) | #061021 | 0.009 |
| Deuteranopia (no green cones) | #030D20 | 0.005 |
| Tritanopia (no blue cones) | #001215 | 0.033 |
| Achromatopsia (no color) | #0E0E0E | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040E20
#040E20
oklch(16.5% 0.042 258.9)
- #160C00
#160C00
oklch(16.4% 0.034 78.6)
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 #040E20, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.025
- Almost Black #070D0D ΔE 0.040
- Rich Black #0D1B2A ΔE 0.053
- Midnight #03012D ΔE 0.053
- Dark Navy Blue #00022E ΔE 0.053
- Dark Navy #000435 ΔE 0.055
- Very Dark Blue #000133 ΔE 0.060
- Navy Blue #001146 ΔE 0.076
Use #040E20 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.