#5580DC
Closest named color: Soft Blue (#6488EA). oklch(61.3% 0.148 263.7), rgb(85, 128, 220).
Aa
Black text reads best on this color (5.50:1).
About this color
#5580DC is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.148 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.034 away. Black text reads best on it, at 5.50:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.50:1 |
| White text | 3.81:1 |
Values
| HEX | #5580DC |
| RGB | rgb(85, 128, 220) |
| HSL | hsl(221, 66%, 60%) |
| OKLCH | oklch(61.3% 0.148 263.7) |
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 #5580DC | 3.81:1 | AA large text | Lc -70.9 | Content text, not long reading |
| Black text on #5580DC | 5.50:1 | AA | Lc 38.7 | Non-text elements, placeholder text |
| #5580DC text on white | 3.81:1 | AA large text | Lc 65.4 | Content text, not long reading |
| #5580DC text on black | 5.50:1 | AA | Lc -36.3 | 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 500.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF8
oklch(93.6% 0.02 264.5)
-
Step 200
200
#CCDAF5
oklch(88.6% 0.04 263.7)
-
Step 300
300
#A9C1F0
oklch(80.9% 0.072 263.7)
-
Step 400
400
#7B9FE9
oklch(70.6% 0.116 263.9)
-
Step 500
500 (this color)
#5580DC
oklch(61.3% 0.148 263.7)
-
Step 600
600
#416DD0
oklch(55.6% 0.161 263.9)
-
Step 700
700
#335BB4
oklch(49.2% 0.149 263.7)
-
Step 800
800
#2A4B92
oklch(42.8% 0.123 263.4)
-
Step 900
900
#263F74
oklch(37.7% 0.096 263.5)
-
Step 950
950
#172544
oklch(27% 0.061 264.4)
#5580DC 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) | #5789E0 | 0.024 |
| Deuteranopia (no green cones) | #437DDA | 0.021 |
| Tritanopia (no blue cones) | #0095A3 | 0.127 |
| Achromatopsia (no color) | #838383 | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5580DC
#5580DC
oklch(61.3% 0.148 263.7)
- #A87C00
#A87C00
oklch(61.3% 0.126 83.6)
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 #5580DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.037
- Cornflower #6A79F7 ΔE 0.052
- Water Blue #0E87CC ΔE 0.055
- Chefchaouen Blue #4895EF ΔE 0.057
- Windows Blue #3778BF ΔE 0.058
- Cool Blue #4984B8 ΔE 0.061
- Cornflower Blue #6495ED ΔE 0.062
Use #5580DC 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.