#055097
Closest named color: Cobalt (#1E488F). oklch(43.3% 0.133 253.7), rgb(5, 80, 151).
Aa
White text reads best on this color (8.07:1).
About this color
#055097 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.133 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.025 away. White text reads best on it, at 8.07:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.133) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.60:1 |
| White text | 8.07:1 |
Values
| HEX | #055097 |
| RGB | rgb(5, 80, 151) |
| HSL | hsl(209, 94%, 31%) |
| OKLCH | oklch(43.3% 0.133 253.7) |
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 #055097 | 8.07:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #055097 | 2.60:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #055097 text on white | 8.07:1 | AAA | Lc 87.3 | Fine for body text |
| #055097 text on black | 2.60:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBF9
oklch(93.6% 0.022 254.4)
-
Step 200
200
#C6DBF6
oklch(88.4% 0.044 254.8)
-
Step 300
300
#9EC4F2
oklch(80.9% 0.077 253.5)
-
Step 400
400
#67A4EC
oklch(70.8% 0.124 253.5)
-
Step 500
500
#398BE6
oklch(63.1% 0.158 253.6)
-
Step 600
600
#0672D5
oklch(55.5% 0.174 253.9)
-
Step 700
700
#0060B5
oklch(49.2% 0.155 253.6)
-
Step 800
800 (this color)
#055097
oklch(43.3% 0.133 253.7)
-
Step 900
900
#104277
oklch(37.8% 0.104 253.6)
-
Step 950
950
#0C2746
oklch(27.1% 0.066 254)
#055097 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) | #28569A | 0.029 |
| Deuteranopia (no green cones) | #004A96 | 0.018 |
| Tritanopia (no blue cones) | #00616C | 0.098 |
| Achromatopsia (no color) | #505050 | 0.133 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #055097
#055097
oklch(43.3% 0.133 253.7)
- #6E4700
#6E4700
oklch(43.2% 0.092 73.5)
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 #055097, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.025
- Dusk Blue #26538D ΔE 0.027
- Light Navy #155084 ΔE 0.032
- Deep Sea Blue #015482 ΔE 0.039
- Light Navy Blue #2E5A88 ΔE 0.050
- Denim Blue #3B5B92 ΔE 0.056
- Twilight Blue #0A437A ΔE 0.058
- Blueberry #464196 ΔE 0.065
Use #055097 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.