#5580FF
Closest named color: Cornflower (#6A79F7). oklch(63.6% 0.195 266.7), rgb(85, 128, 255).
Aa
Black text reads best on this color (5.91:1).
About this color
#5580FF is a medium-light, vivid blue. In OKLCH its lightness is 64%, its chroma 0.195 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.028 away. Black text reads best on it, at 5.91:1.
| Hue family | Blues |
| Lightness | medium-light (64%) |
| Chroma | vivid (0.195) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.91:1 |
| White text | 3.54:1 |
Values
| HEX | #5580FF |
| RGB | rgb(85, 128, 255) |
| HSL | hsl(225, 100%, 67%) |
| OKLCH | oklch(63.6% 0.195 266.7) |
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 #5580FF | 3.54:1 | AA large text | Lc -68.2 | Content text, not long reading |
| Black text on #5580FF | 5.91:1 | AA | Lc 41.4 | Non-text elements, placeholder text |
| #5580FF text on white | 3.54:1 | AA large text | Lc 62.7 | Content text, not long reading |
| #5580FF text on black | 5.91:1 | AA | Lc -39.0 | 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
#F1F5FE
oklch(97% 0.013 266.7)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C9D9FD
oklch(88.5% 0.053 266.4)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#759BFF
oklch(70.6% 0.153 266.8)
-
Step 500
500 (this color)
#5580FF
oklch(63.6% 0.195 266.7)
-
Step 600
600
#3B64ED
oklch(55.7% 0.211 266.6)
-
Step 700
700
#2E51CE
oklch(49% 0.197 266.7)
-
Step 800
800
#2744A6
oklch(42.8% 0.162 266.7)
-
Step 900
900
#233A84
oklch(37.6% 0.128 267)
-
Step 950
950
#14234D
oklch(27% 0.08 266.3)
#5580FF 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) | #3590FF | 0.043 |
| Deuteranopia (no green cones) | #0081FC | 0.046 |
| Tritanopia (no blue cones) | #009EB3 | 0.160 |
| Achromatopsia (no color) | #888888 | 0.195 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5580FF
#5580FF
oklch(63.6% 0.195 266.7)
- #AD8400
#AD8400
oklch(63.5% 0.13 86.6)
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 #5580FF, closest first.
No curated palette has a color within ΔE 0.04 of #5580FF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.028
- Clear Blue #247AFD ΔE 0.043
- Soft Blue #6488EA ΔE 0.044
- Dodger Blue #1E90FF ΔE 0.048
- Dark Sky Blue #448EE4 ΔE 0.059
- Chefchaouen Blue #4895EF ΔE 0.062
- Cornflower Blue #6495ED ΔE 0.068
- Medium Slate Blue #7B68EE ΔE 0.071
Use #5580FF 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.