#005790
Closest named color: Dusk Blue (#26538D). oklch(44.4% 0.117 247), rgb(0, 87, 144).
Aa
White text reads best on this color (7.59:1).
About this color
#005790 is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.117 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.020 away. White text reads best on it, at 7.59:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.117) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.76:1 |
| White text | 7.59:1 |
Values
| HEX | #005790 |
| RGB | rgb(0, 87, 144) |
| HSL | hsl(204, 100%, 28%) |
| OKLCH | oklch(44.4% 0.117 247) |
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 #005790 | 7.59:1 | AAA | Lc -90.6 | Preferred for body text |
| Black text on #005790 | 2.76:1 | Fails | Lc 18.3 | Dividers and decoration only |
| #005790 text on white | 7.59:1 | AAA | Lc 85.8 | Fine for body text |
| #005790 text on black | 2.76:1 | Fails | Lc -16.3 | 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
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C6DCF1
oklch(88.5% 0.037 247)
-
Step 300
300
#9DC5EB
oklch(80.8% 0.069 247.4)
-
Step 400
400
#65A7E1
oklch(70.8% 0.109 246.6)
-
Step 500
500
#348FD9
oklch(63.1% 0.14 247.2)
-
Step 600
600
#0078C3
oklch(55.7% 0.146 246.8)
-
Step 700
700
#0064A5
oklch(49% 0.13 247.2)
-
Step 800
800 (this color)
#005790
oklch(44.4% 0.117 247)
-
Step 900
900
#0C446F
oklch(37.6% 0.092 247.5)
-
Step 950
950
#0A2841
oklch(26.9% 0.058 247.4)
#005790 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) | #3B5A92 | 0.042 |
| Deuteranopia (no green cones) | #254F8F | 0.026 |
| Tritanopia (no blue cones) | #00656C | 0.083 |
| Achromatopsia (no color) | #545454 | 0.117 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #005790
#005790
oklch(44.4% 0.117 247)
- #774700
#774700
oklch(44.4% 0.098 67)
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 #005790, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.020
- Deep Sea Blue #015482 ΔE 0.024
- Light Navy #155084 ΔE 0.026
- Light Navy Blue #2E5A88 ΔE 0.031
- Cobalt #1E488F ΔE 0.043
- Denim Blue #3B5B92 ΔE 0.043
- Peacock Blue #016795 ΔE 0.048
- Denim #3B638C ΔE 0.058
Use #005790 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.