#586398
Closest named color: Dusky Blue (#475F94). oklch(51.4% 0.085 274.1), rgb(88, 99, 152).
Aa
White text reads best on this color (5.74:1).
About this color
#586398 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.085 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.027 away. White text reads best on it, at 5.74:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.65:1 |
| White text | 5.74:1 |
Values
| HEX | #586398 |
| RGB | rgb(88, 99, 152) |
| HSL | hsl(230, 27%, 47%) |
| OKLCH | oklch(51.4% 0.085 274.1) |
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 #586398 | 5.74:1 | AA | Lc -84.0 | Fine for body text |
| Black text on #586398 | 3.65:1 | AA large text | Lc 25.4 | Dividers and decoration only |
| #586398 text on white | 5.74:1 | AA | Lc 78.7 | Fine for body text |
| #586398 text on black | 3.65:1 | AA large text | Lc -23.1 | 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 700.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F2
oklch(93.5% 0.012 276.1)
-
Step 200
200
#D4D8E9
oklch(88.4% 0.024 275.3)
-
Step 300
300
#B8BFDC
oklch(80.9% 0.042 274.7)
-
Step 400
400
#939ECA
oklch(70.6% 0.066 273.7)
-
Step 500
500
#7986BD
oklch(63.1% 0.084 273.5)
-
Step 600
600
#636FA9
oklch(55.7% 0.091 274.2)
-
Step 700
700 (this color)
#586398
oklch(51.4% 0.085 274.1)
-
Step 800
800
#434C76
oklch(42.8% 0.071 273.8)
-
Step 900
900
#383F5F
oklch(37.6% 0.056 274)
-
Step 950
950
#212538
oklch(27% 0.036 274.6)
#586398 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) | #51699A | 0.018 |
| Deuteranopia (no green cones) | #4C6497 | 0.016 |
| Tritanopia (no blue cones) | #436E76 | 0.077 |
| Achromatopsia (no color) | #666666 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #586398
#586398
oklch(51.4% 0.085 274.1)
- #776626
#776626
oklch(51.3% 0.085 94.2)
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 #586398, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.027
- French Blue #436BAD ΔE 0.041
- Denim #3B638C ΔE 0.042
- Muted Blue #3B719F ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.047
- Dull Blue #49759C ΔE 0.052
- Flat Blue #3C73A8 ΔE 0.052
- Metallic Blue #4F738E ΔE 0.054
Use #586398 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.