#005584
Closest named color: Deep Sea Blue (#015482). oklch(43.2% 0.104 242.7), rgb(0, 85, 132).
Aa
White text reads best on this color (7.97:1).
About this color
#005584 is a dark, moderately saturated blue. In OKLCH its lightness is 43%, its chroma 0.104 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.004 away. White text reads best on it, at 7.97:1.
| Hue family | Blues |
| Lightness | dark (43%) |
| Chroma | moderately saturated (0.104) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.63:1 |
| White text | 7.97:1 |
Values
| HEX | #005584 |
| RGB | rgb(0, 85, 132) |
| HSL | hsl(201, 100%, 26%) |
| OKLCH | oklch(43.2% 0.104 242.7) |
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 #005584 | 7.97:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #005584 | 2.63:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #005584 text on white | 7.97:1 | AAA | Lc 87.1 | Fine for body text |
| #005584 text on black | 2.63:1 | Fails | Lc -15.0 | Dividers and decoration only |
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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C7DCEE
oklch(88.4% 0.034 244)
-
Step 300
300
#9FC6E5
oklch(80.9% 0.061 242.5)
-
Step 400
400
#68A8D8
oklch(70.7% 0.097 242.3)
-
Step 500
500
#3891CE
oklch(63.1% 0.124 242.6)
-
Step 600
600
#007ABA
oklch(55.6% 0.133 242.5)
-
Step 700
700
#00669E
oklch(49% 0.119 243.2)
-
Step 800
800 (this color)
#005584
oklch(43.2% 0.104 242.7)
-
Step 900
900
#104669
oklch(37.8% 0.081 242.5)
-
Step 950
950
#0C293D
oklch(27% 0.051 242.2)
#005584 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) | #3E5786 | 0.047 |
| Deuteranopia (no green cones) | #2C4C83 | 0.033 |
| Tritanopia (no blue cones) | #006166 | 0.071 |
| Achromatopsia (no color) | #515151 | 0.104 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005584
#005584
oklch(43.2% 0.104 242.7)
- #754200
#754200
oklch(43.2% 0.098 63.2)
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 #005584, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.004
- Light Navy #155084 ΔE 0.016
- Dusk Blue #26538D ΔE 0.026
- Light Navy Blue #2E5A88 ΔE 0.034
- Cobalt #1E488F ΔE 0.045
- Denim Blue #3B5B92 ΔE 0.053
- Twilight Blue #0A437A ΔE 0.054
- YInMn Blue #415A77 ΔE 0.057
Use #005584 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.