#040F26
Closest named color: Rich Navy (#001219). oklch(17.3% 0.051 261.2), rgb(4, 15, 38).
Aa
White text reads best on this color (19.06:1).
About this color
#040F26 is a very dark, muted blue. In OKLCH its lightness is 17%, its chroma 0.051 and its hue 261°. 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 19.06:1.
| Hue family | Blues |
| Lightness | very dark (17%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.10:1 |
| White text | 19.06:1 |
Values
| HEX | #040F26 |
| RGB | rgb(4, 15, 38) |
| HSL | hsl(221, 81%, 8%) |
| OKLCH | oklch(17.3% 0.051 261.2) |
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 #040F26 | 19.06:1 | AAA | Lc -107.4 | Preferred for body text |
| Black text on #040F26 | 1.10:1 | Fails | Lc 0.0 | Not readable |
| #040F26 text on white | 19.06:1 | AAA | Lc 105.3 | Preferred for body text |
| #040F26 text on black | 1.10:1 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CDDAF0
oklch(88.5% 0.033 261)
-
Step 300
300
#ABC2E8
oklch(81% 0.06 260.4)
-
Step 400
400
#7FA1DD
oklch(70.7% 0.096 261.4)
-
Step 500
500
#5E88D4
oklch(63% 0.124 261.5)
-
Step 600
600
#4571C1
oklch(55.6% 0.134 261.4)
-
Step 700
700
#365EA6
oklch(49% 0.124 261.2)
-
Step 800
800
#2D4D87
oklch(42.6% 0.104 261.3)
-
Step 900
900
#28416C
oklch(37.7% 0.08 260.6)
-
Step 950
950 (this color)
#040F26
oklch(17.3% 0.051 261.2)
#040F26 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) | #041127 | 0.007 |
| Deuteranopia (no green cones) | #000E26 | 0.010 |
| Tritanopia (no blue cones) | #001418 | 0.039 |
| Achromatopsia (no color) | #101010 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #040F26
#040F26
oklch(17.3% 0.051 261.2)
- #180E00
#180E00
oklch(17.3% 0.036 80.7)
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 #040F26, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.033
- Dark Navy #000435 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.047
- Dark Navy Blue #00022E ΔE 0.050
- Midnight #03012D ΔE 0.050
- Almost Black #070D0D ΔE 0.052
- Very Dark Blue #000133 ΔE 0.054
- Navy Blue #001146 ΔE 0.063
Use #040F26 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.