#5784CF
Closest named color: Dark Sky Blue (#448EE4). oklch(61.5% 0.125 260.1), rgb(87, 132, 207).
Aa
Black text reads best on this color (5.60:1).
About this color
#5784CF is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.125 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Sky Blue (#448EE4), ΔE 0.038 away. Black text reads best on it, at 5.60:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Dark Sky Blue (#448EE4) |
| Black text | 5.60:1 |
| White text | 3.74:1 |
Values
| HEX | #5784CF |
| RGB | rgb(87, 132, 207) |
| HSL | hsl(218, 56%, 58%) |
| OKLCH | oklch(61.5% 0.125 260.1) |
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 #5784CF | 3.74:1 | AA large text | Lc -70.3 | Content text, not long reading |
| Black text on #5784CF | 5.60:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #5784CF text on white | 3.74:1 | AA large text | Lc 64.8 | Content text, not long reading |
| #5784CF text on black | 5.60:1 | AA | Lc -36.8 | 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
#E3EAF6
oklch(93.5% 0.018 261.3)
-
Step 200
200
#CCDAF0
oklch(88.5% 0.034 259.4)
-
Step 300
300
#AAC2E9
oklch(80.9% 0.061 260.1)
-
Step 400
400
#7DA1DE
oklch(70.6% 0.098 260.7)
-
Step 500
500 (this color)
#5784CF
oklch(61.5% 0.125 260.1)
-
Step 600
600
#4271C2
oklch(55.6% 0.136 260.5)
-
Step 700
700
#335FA7
oklch(49.2% 0.125 259.8)
-
Step 800
800
#2B4E87
oklch(42.8% 0.103 259.7)
-
Step 900
900
#27416C
oklch(37.7% 0.081 260)
-
Step 950
950
#17263F
oklch(26.9% 0.051 260.2)
#5784CF 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) | #658AD2 | 0.024 |
| Deuteranopia (no green cones) | #557FCD | 0.014 |
| Tritanopia (no blue cones) | #0095A0 | 0.109 |
| Achromatopsia (no color) | #848484 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5784CF
#5784CF
oklch(61.5% 0.125 260.1)
- #AB7B0B
#AB7B0B
oklch(61.5% 0.125 80.5)
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 #5784CF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Sky Blue #448EE4 ΔE 0.038
- Cool Blue #4984B8 ΔE 0.040
- Soft Blue #6488EA ΔE 0.045
- Faded Blue #658CBB ΔE 0.045
- Water Blue #0E87CC ΔE 0.046
- Steel Blue #4682B4 ΔE 0.046
- Off Blue #5684AE ΔE 0.052
- Windows Blue #3778BF ΔE 0.053
Use #5784CF 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.