#055679
Closest named color: Deep Sea Blue (#015482). oklch(42.8% 0.089 235.3), rgb(5, 86, 121).
Aa
White text reads best on this color (8.03:1).
About this color
#055679 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.089 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.018 away. White text reads best on it, at 8.03:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.089) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.61:1 |
| White text | 8.03:1 |
Values
| HEX | #055679 |
| RGB | rgb(5, 86, 121) |
| HSL | hsl(198, 92%, 25%) |
| OKLCH | oklch(42.8% 0.089 235.3) |
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 #055679 | 8.03:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #055679 | 2.61:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #055679 text on white | 8.03:1 | AAA | Lc 87.4 | Fine for body text |
| #055679 text on black | 2.61:1 | Fails | Lc -14.8 | 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
#F1F6F9
oklch(97% 0.007 233.6)
-
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
#A1C7DE
oklch(81% 0.052 234.9)
-
Step 400
400
#6BA9CD
oklch(70.6% 0.083 235.1)
-
Step 500
500
#3D93C1
oklch(63.1% 0.107 235.5)
-
Step 600
600
#0B7DAD
oklch(55.7% 0.115 234.9)
-
Step 700
700
#006993
oklch(49.2% 0.104 234.9)
-
Step 800
800 (this color)
#055679
oklch(42.8% 0.089 235.3)
-
Step 900
900
#134761
oklch(37.7% 0.069 235)
-
Step 950
950
#0D2A39
oklch(27.1% 0.044 234.3)
#055679 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) | #45567B | 0.053 |
| Deuteranopia (no green cones) | #364C78 | 0.043 |
| Tritanopia (no blue cones) | #005F62 | 0.055 |
| Achromatopsia (no color) | #505050 | 0.089 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #055679
#055679
oklch(42.8% 0.089 235.3)
- #744018
#744018
oklch(42.8% 0.089 54.6)
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 #055679, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.018
- Light Navy #155084 ΔE 0.029
- Light Navy Blue #2E5A88 ΔE 0.039
- Dusk Blue #26538D ΔE 0.042
- Petrol #005F6A ΔE 0.043
- YInMn Blue #415A77 ΔE 0.050
- Deep Teal #00555A ΔE 0.053
- Twilight Blue #0A437A ΔE 0.059
Use #055679 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.