#5583EC
Closest named color: Soft Blue (#6488EA). oklch(62.9% 0.166 264.4), rgb(85, 131, 236).
Aa
Black text reads best on this color (5.84:1).
About this color
#5583EC is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.166 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.023 away. Black text reads best on it, at 5.84:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.84:1 |
| White text | 3.59:1 |
Values
| HEX | #5583EC |
| RGB | rgb(85, 131, 236) |
| HSL | hsl(222, 80%, 63%) |
| OKLCH | oklch(62.9% 0.166 264.4) |
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 #5583EC | 3.59:1 | AA large text | Lc -68.7 | Content text, not long reading |
| Black text on #5583EC | 5.84:1 | AA | Lc 40.8 | Non-text elements, placeholder text |
| #5583EC text on white | 3.59:1 | AA large text | Lc 63.2 | Content text, not long reading |
| #5583EC text on black | 5.84:1 | AA | Lc -38.4 | 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
#F2F6FD
oklch(97.2% 0.01 261.8)
-
Step 100
100
#E2EAFA
oklch(93.6% 0.023 264.5)
-
Step 200
200
#CAD9F8
oklch(88.4% 0.046 264.9)
-
Step 300
300
#A6C1F6
oklch(81% 0.081 263.6)
-
Step 400
400
#789EF1
oklch(70.6% 0.129 264.6)
-
Step 500
500 (this color)
#5583EC
oklch(62.9% 0.166 264.4)
-
Step 600
600
#3C6ADB
oklch(55.5% 0.181 264.5)
-
Step 700
700
#2E58BE
oklch(49.1% 0.167 264.2)
-
Step 800
800
#27499A
oklch(42.8% 0.138 264.2)
-
Step 900
900
#243E7A
oklch(37.8% 0.107 264.3)
-
Step 950
950
#152548
oklch(27.1% 0.069 263.9)
#5583EC 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) | #508EF0 | 0.028 |
| Deuteranopia (no green cones) | #3681EA | 0.028 |
| Tritanopia (no blue cones) | #009BAC | 0.138 |
| Achromatopsia (no color) | #878787 | 0.166 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5583EC
#5583EC
oklch(62.9% 0.166 264.4)
- #AD8100
#AD8100
oklch(62.9% 0.129 84.4)
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 #5583EC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.023
- Dark Sky Blue #448EE4 ΔE 0.035
- Cornflower #6A79F7 ΔE 0.038
- Chefchaouen Blue #4895EF ΔE 0.046
- Dodger Blue #1E90FF ΔE 0.048
- Cornflower Blue #6495ED ΔE 0.052
- Clear Blue #247AFD ΔE 0.054
- Water Blue #0E87CC ΔE 0.070
Use #5583EC 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.