#5579F0
Closest named color: Cornflower (#6A79F7). oklch(61.2% 0.183 268), rgb(85, 121, 240).
Aa
Black text reads best on this color (5.37:1).
About this color
#5579F0 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.183 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.027 away. Black text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.183) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.37:1 |
| White text | 3.90:1 |
Values
| HEX | #5579F0 |
| RGB | rgb(85, 121, 240) |
| HSL | hsl(226, 84%, 64%) |
| OKLCH | oklch(61.2% 0.183 268) |
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 #5579F0 | 3.90:1 | AA large text | Lc -71.6 | Content text, not long reading |
| Black text on #5579F0 | 5.37:1 | AA | Lc 38.0 | Non-text elements, placeholder text |
| #5579F0 text on white | 3.90:1 | AA large text | Lc 66.1 | Content text, not long reading |
| #5579F0 text on black | 5.37:1 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CBD9FB
oklch(88.6% 0.049 267.7)
-
Step 300
300
#A8BFFB
oklch(80.9% 0.089 268.2)
-
Step 400
400
#7A9BFA
oklch(70.6% 0.144 268.1)
-
Step 500
500 (this color)
#5579F0
oklch(61.2% 0.183 268)
-
Step 600
600
#4365E6
oklch(55.7% 0.199 268.1)
-
Step 700
700
#3553C8
oklch(49.2% 0.185 267.9)
-
Step 800
800
#2C44A1
oklch(42.6% 0.153 268.2)
-
Step 900
900
#273B80
oklch(37.7% 0.119 268.1)
-
Step 950
950
#17234B
oklch(27% 0.076 268.4)
#5579F0 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) | #3688F4 | 0.041 |
| Deuteranopia (no green cones) | #007AEE | 0.049 |
| Tritanopia (no blue cones) | #0095A9 | 0.153 |
| Achromatopsia (no color) | #818181 | 0.183 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5579F0
#5579F0
oklch(61.2% 0.183 268)
- #A37E00
#A37E00
oklch(61.2% 0.125 87.9)
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 #5579F0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.027
- Clear Blue #247AFD ΔE 0.041
- Soft Blue #6488EA ΔE 0.046
- Royal Blue #4169E1 ΔE 0.052
- Medium Slate Blue #7B68EE ΔE 0.059
- Dark Sky Blue #448EE4 ΔE 0.060
- Cerulean Blue #056EEE ΔE 0.063
- Dodger Blue #1E90FF ΔE 0.063
Use #5579F0 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.