#005478
Closest named color: Deep Sea Blue (#015482). oklch(42.2% 0.091 236), rgb(0, 84, 120).
Aa
White text reads best on this color (8.26:1).
About this color
#005478 is a dark, moderately saturated blue. In OKLCH its lightness is 42%, its chroma 0.091 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.017 away. White text reads best on it, at 8.26:1.
| Hue family | Blues |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.53:1 |
| White text | 8.26:1 |
Values
| HEX | #005478 |
| RGB | rgb(0, 84, 120) |
| HSL | hsl(198, 100%, 24%) |
| OKLCH | oklch(42.2% 0.091 236) |
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 #005478 | 8.26:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #005478 | 2.53:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #005478 text on white | 8.26:1 | AAA | Lc 88.0 | Fine for body text |
| #005478 text on black | 2.53:1 | Fails | Lc -14.1 | 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 800.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DDEA
oklch(88.6% 0.029 234.9)
-
Step 300
300
#A1C7DF
oklch(81% 0.053 236)
-
Step 400
400
#6AA9CF
oklch(70.7% 0.086 236.2)
-
Step 500
500
#3C93C2
oklch(63.1% 0.108 235.9)
-
Step 600
600
#077CAE
oklch(55.5% 0.118 236)
-
Step 700
700
#006994
oklch(49.2% 0.105 235.5)
-
Step 800
800 (this color)
#005478
oklch(42.2% 0.091 236)
-
Step 900
900
#124762
oklch(37.8% 0.071 235.8)
-
Step 950
950
#0D2A39
oklch(27.1% 0.044 234.3)
#005478 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) | #42547A | 0.052 |
| Deuteranopia (no green cones) | #334A77 | 0.042 |
| Tritanopia (no blue cones) | #005D61 | 0.055 |
| Achromatopsia (no color) | #4E4E4E | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005478
#005478
oklch(42.2% 0.091 236)
- #723E13
#723E13
oklch(42.1% 0.091 55.6)
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 #005478, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.017
- Light Navy #155084 ΔE 0.027
- Dusk Blue #26538D ΔE 0.043
- Light Navy Blue #2E5A88 ΔE 0.044
- Petrol #005F6A ΔE 0.048
- Deep Teal #00555A ΔE 0.053
- Twilight Blue #0A437A ΔE 0.053
- YInMn Blue #415A77 ΔE 0.055
Use #005478 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.