#5579DC
Closest named color: Soft Blue (#6488EA). oklch(59.8% 0.156 266.7), rgb(85, 121, 220).
Aa
Black text reads best on this color (5.15:1).
About this color
#5579DC is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.156 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.048 away. Black text reads best on it, at 5.15:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.156) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.15:1 |
| White text | 4.07:1 |
Values
| HEX | #5579DC |
| RGB | rgb(85, 121, 220) |
| HSL | hsl(224, 66%, 60%) |
| OKLCH | oklch(59.8% 0.156 266.7) |
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 #5579DC | 4.07:1 | AA large text | Lc -73.2 | Content text, not long reading |
| Black text on #5579DC | 5.15:1 | AA | Lc 36.4 | Non-text elements, placeholder text |
| #5579DC text on white | 4.07:1 | AA large text | Lc 67.7 | Content text, not long reading |
| #5579DC text on black | 5.15:1 | AA | Lc -34.0 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E3EAF9
oklch(93.6% 0.022 265.8)
-
Step 200
200
#CCD9F6
oklch(88.5% 0.042 266.3)
-
Step 300
300
#AAC0F3
oklch(80.9% 0.076 266.5)
-
Step 400
400
#7E9EED
oklch(70.8% 0.122 266.6)
-
Step 500
500 (this color)
#5579DC
oklch(59.8% 0.156 266.7)
-
Step 600
600
#466AD5
oklch(55.5% 0.169 266.8)
-
Step 700
700
#3858B9
oklch(49.2% 0.158 266.8)
-
Step 800
800
#2E4896
oklch(42.6% 0.132 266.8)
-
Step 900
900
#293D77
oklch(37.6% 0.102 267.1)
-
Step 950
950
#182446
oklch(26.9% 0.065 267.3)
#5579DC 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) | #4A84E0 | 0.029 |
| Deuteranopia (no green cones) | #3478DA | 0.031 |
| Tritanopia (no blue cones) | #008FA0 | 0.132 |
| Achromatopsia (no color) | #7E7E7E | 0.156 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5579DC
#5579DC
oklch(59.8% 0.156 266.7)
- #9F7A00
#9F7A00
oklch(59.9% 0.122 87.3)
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 #5579DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.048
- Cornflower #6A79F7 ΔE 0.049
- Royal Blue #4169E1 ΔE 0.050
- Dark Sky Blue #448EE4 ΔE 0.054
- Windows Blue #3778BF ΔE 0.055
- Clear Blue #247AFD ΔE 0.060
- Water Blue #0E87CC ΔE 0.063
- Dark Periwinkle #665FD1 ΔE 0.065
Use #5579DC 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.