#161640
Closest named color: Navy Blue (#001146). oklch(22.9% 0.078 278.3), rgb(22, 22, 64).
Aa
White text reads best on this color (17.17:1).
About this color
#161640 is a very dark, moderately saturated blue. In OKLCH its lightness is 23%, its chroma 0.078 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.039 away. White text reads best on it, at 17.17:1.
| Hue family | Blues |
| Lightness | very dark (23%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.22:1 |
| White text | 17.17:1 |
Values
| HEX | #161640 |
| RGB | rgb(22, 22, 64) |
| HSL | hsl(240, 49%, 17%) |
| OKLCH | oklch(22.9% 0.078 278.3) |
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 #161640 | 17.17:1 | AAA | Lc -106.2 | Preferred for body text |
| Black text on #161640 | 1.22:1 | Fails | Lc 0.0 | Not readable |
| #161640 text on white | 17.17:1 | AAA | Lc 103.9 | Preferred for body text |
| #161640 text on black | 1.22:1 | 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
#F3F5FE
oklch(97.1% 0.012 276.1)
-
Step 100
100
#E5E9FC
oklch(93.7% 0.026 276.4)
-
Step 200
200
#D1D7FB
oklch(88.6% 0.05 277.9)
-
Step 300
300
#B3BBFC
oklch(80.9% 0.092 278.7)
-
Step 400
400
#8D95FB
oklch(70.7% 0.148 278.5)
-
Step 500
500
#7377F8
oklch(63.1% 0.189 278.2)
-
Step 600
600
#5E5BE7
oklch(55.6% 0.206 278.3)
-
Step 700
700
#4E4AC9
oklch(49.1% 0.191 278.1)
-
Step 800
800
#403EA2
oklch(42.8% 0.157 278.3)
-
Step 900
900
#353681
oklch(37.7% 0.123 278.1)
-
Step 950
950 (this color)
#161640
oklch(22.9% 0.078 278.3)
#161640 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) | #001D41 | 0.032 |
| Deuteranopia (no green cones) | #001A3F | 0.030 |
| Tritanopia (no blue cones) | #012028 | 0.068 |
| Achromatopsia (no color) | #1B1B1B | 0.078 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #161640
#161640
oklch(22.9% 0.078 278.3)
- #231D00
#231D00
oklch(23.1% 0.048 98.3)
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 #161640, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.039
- Dark Indigo #1F0954 ΔE 0.047
- Rich Black #0D1B2A ΔE 0.050
- Oxford Blue #1B263B ΔE 0.056
- Night Blue #040348 ΔE 0.060
- Dark #1B2431 ΔE 0.060
- Midnight Purple #280137 ΔE 0.062
- Very Dark Purple #2A0134 ΔE 0.067
Use #161640 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.