#586CAC
Closest named color: French Blue (#436BAD). oklch(54.4% 0.103 269.6), rgb(88, 108, 172).
Aa
White text reads best on this color (5.05:1).
About this color
#586CAC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.103 and its hue 270°. Its hue sits on the cool side of the wheel. The nearest named color is French Blue (#436BAD), ΔE 0.025 away. White text reads best on it, at 5.05:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.103) |
| Temperature | cool |
| Nearest name | French Blue (#436BAD) |
| Black text | 4.15:1 |
| White text | 5.05:1 |
Values
| HEX | #586CAC |
| RGB | rgb(88, 108, 172) |
| HSL | hsl(226, 34%, 51%) |
| OKLCH | oklch(54.4% 0.103 269.6) |
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 #586CAC | 5.05:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #586CAC | 4.15:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #586CAC text on white | 5.05:1 | AA | Lc 74.8 | Content text, not long reading |
| #586CAC text on black | 4.15:1 | AA large text | Lc -26.9 | 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 600.
-
Step 50
50
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E6EAF3
oklch(93.7% 0.013 266.7)
-
Step 200
200
#D2D9EB
oklch(88.5% 0.026 268.8)
-
Step 300
300
#B4C0E0
oklch(80.9% 0.047 269.1)
-
Step 400
400
#8E9FD0
oklch(70.7% 0.075 269.6)
-
Step 500
500
#7387C3
oklch(63.2% 0.094 269.5)
-
Step 600
600 (this color)
#586CAC
oklch(54.4% 0.103 269.6)
-
Step 700
700
#4B5D97
oklch(49.1% 0.096 269.6)
-
Step 800
800
#3E4C7B
oklch(42.7% 0.08 270.2)
-
Step 900
900
#344063
oklch(37.8% 0.062 268.9)
-
Step 950
950
#1F253A
oklch(26.9% 0.04 271.3)
#586CAC 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) | #5473AF | 0.019 |
| Deuteranopia (no green cones) | #4B6BAB | 0.017 |
| Tritanopia (no blue cones) | #367984 | 0.091 |
| Achromatopsia (no color) | #6F6F6F | 0.103 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #586CAC
#586CAC
oklch(54.4% 0.103 269.6)
- #876C17
#876C17
oklch(54.3% 0.103 89.7)
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 #586CAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- French Blue #436BAD ΔE 0.025
- Flat Blue #3C73A8 ΔE 0.036
- Muted Blue #3B719F ΔE 0.042
- Dull Blue #49759C ΔE 0.044
- Windows Blue #3778BF ΔE 0.047
- Mid Blue #276AB3 ΔE 0.051
- Dusky Blue #475F94 ΔE 0.055
- Stormy Blue #507B9C ΔE 0.056
Use #586CAC 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.