#5679C8
Closest named color: Windows Blue (#3778BF). oklch(58.7% 0.128 264.7), rgb(86, 121, 200).
Aa
Black text reads best on this color (4.96:1).
About this color
#5679C8 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 59%, its chroma 0.128 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Windows Blue (#3778BF), ΔE 0.035 away. Black text reads best on it, at 4.96:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Windows Blue (#3778BF) |
| Black text | 4.96:1 |
| White text | 4.22:1 |
Values
| HEX | #5679C8 |
| RGB | rgb(86, 121, 200) |
| HSL | hsl(222, 51%, 56%) |
| OKLCH | oklch(58.7% 0.128 264.7) |
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 #5679C8 | 4.22:1 | AA large text | Lc -74.5 | Content text, not long reading |
| Black text on #5679C8 | 4.96:1 | AA | Lc 35.1 | Non-text elements, placeholder text |
| #5679C8 text on white | 4.22:1 | AA large text | Lc 69.0 | Content text, not long reading |
| #5679C8 text on black | 4.96:1 | AA | Lc -32.6 | Non-text elements, placeholder text |
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
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CFD9EF
oklch(88.4% 0.032 266.1)
-
Step 300
300
#AEC1E7
oklch(80.9% 0.058 264.2)
-
Step 400
400
#84A0DB
oklch(70.7% 0.092 264.6)
-
Step 500
500
#6687D1
oklch(63.1% 0.118 265)
-
Step 600
600 (this color)
#5679C8
oklch(58.7% 0.128 264.7)
-
Step 700
700
#3E5DA4
oklch(49.1% 0.12 264.6)
-
Step 800
800
#344C85
oklch(42.7% 0.099 265.2)
-
Step 900
900
#2D406A
oklch(37.7% 0.076 264.6)
-
Step 950
950
#1A263E
oklch(27% 0.048 263.3)
#5679C8 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) | #5881CB | 0.022 |
| Deuteranopia (no green cones) | #4976C6 | 0.018 |
| Tritanopia (no blue cones) | #008A97 | 0.114 |
| Achromatopsia (no color) | #7B7B7B | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5679C8
#5679C8
oklch(58.7% 0.128 264.7)
- #9D7500
#9D7500
oklch(58.6% 0.12 84.6)
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 #5679C8, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Windows Blue #3778BF ΔE 0.035
- Cool Blue #4984B8 ΔE 0.045
- Steel Blue #4682B4 ΔE 0.047
- Water Blue #0E87CC ΔE 0.054
- Off Blue #5684AE ΔE 0.057
- French Blue #436BAD ΔE 0.059
- Flat Blue #3C73A8 ΔE 0.060
- Dusty Blue #5A86AD ΔE 0.063
Use #5679C8 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.