#06183C
Closest named color: Navy Blue (#001146). oklch(22% 0.074 261.8), rgb(6, 24, 60).
Aa
White text reads best on this color (17.44:1).
About this color
#06183C is a very dark, moderately saturated blue. In OKLCH its lightness is 22%, its chroma 0.074 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.030 away. White text reads best on it, at 17.44:1.
| Hue family | Blues |
| Lightness | very dark (22%) |
| Chroma | moderately saturated (0.074) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.20:1 |
| White text | 17.44:1 |
Values
| HEX | #06183C |
| RGB | rgb(6, 24, 60) |
| HSL | hsl(220, 82%, 13%) |
| OKLCH | oklch(22% 0.074 261.8) |
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 #06183C | 17.44:1 | AAA | Lc -106.4 | Preferred for body text |
| Black text on #06183C | 1.20:1 | Fails | Lc 0.0 | Not readable |
| #06183C text on white | 17.44:1 | AAA | Lc 104.1 | Preferred for body text |
| #06183C text on black | 1.20:1 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFB
oklch(93.5% 0.025 263.3)
-
Step 200
200
#C8DAFA
oklch(88.5% 0.048 262)
-
Step 300
300
#A2C1FA
oklch(80.9% 0.088 262.4)
-
Step 400
400
#6F9FF7
oklch(70.7% 0.14 261.7)
-
Step 500
500
#4984F4
oklch(63.1% 0.179 261.8)
-
Step 600
600
#2C6AE2
oklch(55.5% 0.194 261.8)
-
Step 700
700
#2058C5
oklch(49.2% 0.18 261.9)
-
Step 800
800
#1C489F
oklch(42.6% 0.15 262)
-
Step 900
900
#1C3E7E
oklch(37.7% 0.116 261.6)
-
Step 950
950 (this color)
#06183C
oklch(22% 0.074 261.8)
#06183C 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) | #021C3D | 0.013 |
| Deuteranopia (no green cones) | #00173B | 0.010 |
| Tritanopia (no blue cones) | #002127 | 0.057 |
| Achromatopsia (no color) | #1A1A1A | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #06183C
#06183C
oklch(22% 0.074 261.8)
- #251800
#251800
oklch(22% 0.045 81.8)
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 #06183C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.030
- Rich Black #0D1B2A ΔE 0.039
- Night Blue #040348 ΔE 0.055
- Oxford Blue #1B263B ΔE 0.059
- Dark #1B2431 ΔE 0.060
- Dark Navy #000435 ΔE 0.064
- Dark Indigo #1F0954 ΔE 0.065
- Rich Navy #001219 ΔE 0.073
Use #06183C 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.