#05133D
Closest named color: Navy Blue (#001146). oklch(20.8% 0.083 264.8), rgb(5, 19, 61).
Aa
White text reads best on this color (17.99:1).
About this color
#05133D is a very dark, moderately saturated blue. In OKLCH its lightness is 21%, its chroma 0.083 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Navy Blue (#001146), ΔE 0.020 away. White text reads best on it, at 17.99:1.
| Hue family | Blues |
| Lightness | very dark (21%) |
| Chroma | moderately saturated (0.083) |
| Temperature | cool |
| Nearest name | Navy Blue (#001146) |
| Black text | 1.16:1 |
| White text | 17.99:1 |
Values
| HEX | #05133D |
| RGB | rgb(5, 19, 61) |
| HSL | hsl(225, 85%, 13%) |
| OKLCH | oklch(20.8% 0.083 264.8) |
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 #05133D | 17.99:1 | AAA | Lc -106.7 | Preferred for body text |
| Black text on #05133D | 1.16:1 | Fails | Lc 0.0 | Not readable |
| #05133D text on white | 17.99:1 | AAA | Lc 104.4 | Preferred for body text |
| #05133D text on black | 1.16:1 | 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
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#E1EAFE
oklch(93.6% 0.029 266.4)
-
Step 200
200
#C7D9FE
oklch(88.4% 0.055 264.7)
-
Step 300
300
#A2C0FF
oklch(80.9% 0.096 264.7)
-
Step 400
400
#719DFF
oklch(70.8% 0.152 264.6)
-
Step 500
500
#4C80FF
oklch(63.2% 0.197 264.6)
-
Step 600
600
#3164F1
oklch(55.7% 0.219 264.8)
-
Step 700
700
#2551D2
oklch(49.1% 0.204 265)
-
Step 800
800
#1F44A9
oklch(42.7% 0.168 264.7)
-
Step 900
900
#1E3B86
oklch(37.8% 0.131 264.8)
-
Step 950
950 (this color)
#05133D
oklch(20.8% 0.083 264.8)
#05133D 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) | #00193E | 0.018 |
| Deuteranopia (no green cones) | #00143C | 0.008 |
| Tritanopia (no blue cones) | #001E25 | 0.065 |
| Achromatopsia (no color) | #171717 | 0.083 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #05133D
#05133D
oklch(20.8% 0.083 264.8)
- #211600
#211600
oklch(20.9% 0.043 84.6)
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 #05133D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Navy Blue #001146 ΔE 0.020
- Night Blue #040348 ΔE 0.041
- Dark Navy #000435 ΔE 0.049
- Rich Black #0D1B2A ΔE 0.050
- Very Dark Blue #000133 ΔE 0.061
- Dark Indigo #1F0954 ΔE 0.062
- Dark Navy Blue #00022E ΔE 0.065
- Midnight #03012D ΔE 0.066
Use #05133D 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.