#051C46
Closest named color: Navy Blue (#001146). oklch(23.9% 0.084 260.8), rgb(5, 28, 70).
Aa
White text reads best on this color (16.65:1).
About this color
#051C46 is a very dark, moderately saturated blue. In OKLCH its lightness is 24%, its chroma 0.084 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.034 away. White text reads best on it, at 16.65:1.
| Hue family | Blues |
| Lightness | very dark (24%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.26:1 |
| White text | 16.65:1 |
Values
| HEX | #051C46 |
| RGB | rgb(5, 28, 70) |
| HSL | hsl(219, 87%, 15%) |
| OKLCH | oklch(23.9% 0.084 260.8) |
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 #051C46 | 16.65:1 | AAA | Lc -105.8 | Preferred for body text |
| Black text on #051C46 | 1.26:1 | Fails | Lc 0.0 | Not readable |
| #051C46 text on white | 16.65:1 | AAA | Lc 103.3 | Preferred for body text |
| #051C46 text on black | 1.26:1 | 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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFE
oklch(93.7% 0.029 259.6)
-
Step 200
200
#C5DAFF
oklch(88.5% 0.056 261.8)
-
Step 300
300
#9DC2FF
oklch(81% 0.096 260.2)
-
Step 400
400
#689FFF
oklch(70.7% 0.153 260.8)
-
Step 500
500
#3C83FF
oklch(63.2% 0.198 260.7)
-
Step 600
600
#1367F2
oklch(55.6% 0.222 260.8)
-
Step 700
700
#0354D3
oklch(49.1% 0.207 260.9)
-
Step 800
800
#0946AA
oklch(42.7% 0.171 260.7)
-
Step 900
900
#123C87
oklch(37.7% 0.134 261)
-
Step 950
950 (this color)
#051C46
oklch(23.9% 0.084 260.8)
#051C46 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) | #002147 | 0.015 |
| Deuteranopia (no green cones) | #001B45 | 0.007 |
| Tritanopia (no blue cones) | #00262D | 0.065 |
| Achromatopsia (no color) | #1E1E1E | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #051C46
#051C46
oklch(23.9% 0.084 260.8)
- #2B1C00
#2B1C00
oklch(23.9% 0.049 80.6)
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 #051C46, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.034
- Oxford Blue #1B263B ΔE 0.052
- Rich Black #0D1B2A ΔE 0.054
- Dark Indigo #1F0954 ΔE 0.058
- Dark #1B2431 ΔE 0.060
- Night Blue #040348 ΔE 0.061
- Darkblue #030764 ΔE 0.067
- Marine #042E60 ΔE 0.070
Use #051C46 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.