#5780D0
Closest named color: Dark Sky Blue (#448EE4). oklch(60.7% 0.131 262.6), rgb(87, 128, 208).
Aa
Black text reads best on this color (5.40:1).
About this color
#5780D0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.131 and its hue 263°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.044 away. Black text reads best on it, at 5.40:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.40:1 |
| White text | 3.88:1 |
Values
| HEX | #5780D0 |
| RGB | rgb(87, 128, 208) |
| HSL | hsl(220, 56%, 58%) |
| OKLCH | oklch(60.7% 0.131 262.6) |
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 #5780D0 | 3.88:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #5780D0 | 5.40:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #5780D0 text on white | 3.88:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #5780D0 text on black | 5.40:1 | AA | Lc -35.5 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CDDAF1
oklch(88.6% 0.035 262)
-
Step 300
300
#ABC1EB
oklch(80.9% 0.064 263.3)
-
Step 400
400
#7EA0E1
oklch(70.6% 0.103 262.8)
-
Step 500
500 (this color)
#5780D0
oklch(60.7% 0.131 262.6)
-
Step 600
600
#4570C5
oklch(55.7% 0.141 262.5)
-
Step 700
700
#365DAB
oklch(49.1% 0.132 262.6)
-
Step 800
800
#2D4C8A
oklch(42.6% 0.109 262.7)
-
Step 900
900
#28406E
oklch(37.6% 0.085 262.3)
-
Step 950
950
#182641
oklch(27.1% 0.054 262.5)
#5780D0 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) | #5E87D3 | 0.022 |
| Deuteranopia (no green cones) | #4E7CCE | 0.016 |
| Tritanopia (no blue cones) | #00929E | 0.115 |
| Achromatopsia (no color) | #818181 | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5780D0
#5780D0
oklch(60.7% 0.131 262.6)
- #A77A00
#A77A00
oklch(60.8% 0.125 82.6)
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 #5780D0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.044
- Cool Blue #4984B8 ΔE 0.044
- Soft Blue #6488EA ΔE 0.046
- Windows Blue #3778BF ΔE 0.048
- Water Blue #0E87CC ΔE 0.049
- Steel Blue #4682B4 ΔE 0.049
- Faded Blue #658CBB ΔE 0.055
- Off Blue #5684AE ΔE 0.057
Use #5780D0 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.