#586FC8
Closest named color: Windows Blue (#3778BF). oklch(56.7% 0.14 270.5), rgb(88, 111, 200).
Aa
White text reads best on this color (4.64:1).
About this color
#586FC8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.140 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.043 away. White text reads best on it, at 4.64:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.140) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.52:1 |
| White text | 4.64:1 |
Values
| HEX | #586FC8 |
| RGB | rgb(88, 111, 200) |
| HSL | hsl(228, 50%, 56%) |
| OKLCH | oklch(56.7% 0.14 270.5) |
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 #586FC8 | 4.64:1 | AA | Lc -77.5 | Fine for body text |
| Black text on #586FC8 | 4.52:1 | AA | Lc 32.0 | Non-text elements, placeholder text |
| #586FC8 text on white | 4.64:1 | AA | Lc 72.1 | Content text, not long reading |
| #586FC8 text on black | 4.52:1 | AA | Lc -29.6 | 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 600.
-
Step 50
50
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF6
oklch(93.7% 0.017 267.8)
-
Step 200
200
#D0D9F1
oklch(88.6% 0.034 269.3)
-
Step 300
300
#B1BFEA
oklch(80.8% 0.063 270.8)
-
Step 400
400
#899DE0
oklch(70.7% 0.101 270.9)
-
Step 500
500
#6C84D7
oklch(63.2% 0.128 270.2)
-
Step 600
600 (this color)
#586FC8
oklch(56.7% 0.14 270.5)
-
Step 700
700
#4559AA
oklch(49% 0.131 270.5)
-
Step 800
800
#394989
oklch(42.6% 0.108 270.7)
-
Step 900
900
#313E6E
oklch(37.7% 0.084 270.5)
-
Step 950
950
#1D2540
oklch(27.1% 0.052 270.2)
#586FC8 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) | #477ACB | 0.032 |
| Deuteranopia (no green cones) | #3970C6 | 0.033 |
| Tritanopia (no blue cones) | #148392 | 0.125 |
| Achromatopsia (no color) | #747474 | 0.140 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #586FC8
#586FC8
oklch(56.7% 0.14 270.5)
- #907300
#907300
oklch(56.7% 0.116 91.1)
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 #586FC8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.043
- Dark Periwinkle #665FD1 ΔE 0.046
- Royal Blue #4169E1 ΔE 0.050
- French Blue #436BAD ΔE 0.051
- Slate Blue #6A5ACD ΔE 0.056
- Iris #6258C4 ΔE 0.057
- Light Indigo #6D5ACF ΔE 0.059
- Mid Blue #276AB3 ΔE 0.062
Use #586FC8 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.