#005789
Closest named color: Deep Sea Blue (#015482). oklch(44% 0.108 243.8), rgb(0, 87, 137).
Aa
White text reads best on this color (7.70:1).
About this color
#005789 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.108 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.013 away. White text reads best on it, at 7.70:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.108) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.72:1 |
| White text | 7.70:1 |
Values
| HEX | #005789 |
| RGB | rgb(0, 87, 137) |
| HSL | hsl(202, 100%, 27%) |
| OKLCH | oklch(44% 0.108 243.8) |
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 #005789 | 7.70:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #005789 | 2.72:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #005789 text on white | 7.70:1 | AAA | Lc 86.2 | Fine for body text |
| #005789 text on black | 2.72:1 | Fails | Lc -15.9 | 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
#C6DCEF
oklch(88.4% 0.035 244.2)
-
Step 300
300
#9EC6E7
oklch(80.9% 0.063 243.5)
-
Step 400
400
#66A8DB
oklch(70.8% 0.101 243.2)
-
Step 500
500
#3690D1
oklch(63% 0.129 244.1)
-
Step 600
600
#0079BC
oklch(55.5% 0.136 243.9)
-
Step 700
700
#00669F
oklch(49.1% 0.12 243.6)
-
Step 800
800 (this color)
#005789
oklch(44% 0.108 243.8)
-
Step 900
900
#0D456B
oklch(37.6% 0.085 244.3)
-
Step 950
950
#0B293E
oklch(27% 0.053 242.9)
#005789 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) | #3F598B | 0.047 |
| Deuteranopia (no green cones) | #2C4E88 | 0.033 |
| Tritanopia (no blue cones) | #006369 | 0.074 |
| Achromatopsia (no color) | #535353 | 0.108 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005789
#005789
oklch(44% 0.108 243.8)
- #784400
#784400
oklch(44% 0.1 63.4)
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 #005789, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.013
- Light Navy #155084 ΔE 0.021
- Dusk Blue #26538D ΔE 0.023
- Light Navy Blue #2E5A88 ΔE 0.029
- Cobalt #1E488F ΔE 0.046
- Denim Blue #3B5B92 ΔE 0.046
- Peacock Blue #016795 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.057
Use #005789 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.