#3580DB#3580DB
#3580DB is a mid, vivid cyan. Relative luminance 0.213; OKLCH L 59.9% C 0.157 H 255.2°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #3580DB |
|---|---|
| RGB | rgb(53, 128, 219) |
| HSL | hsl(213, 70%, 53%) |
| HSV | hsv(213, 76%, 86%) |
| CMYK | cmyk(75.8%, 41.6%, 0%, 14.1%) |
| CIE-LAB | lab(53.28, 8.21, -53.13) |
| CIE-LCH | lch(53.28, 53.76, 278.79°) |
| OKLab | oklab(59.93% -0.0401 -0.1519) |
| OKLCH | oklch(59.93% 0.157 255.2) |
| XYZ | xyz(21.9688, 21.3072, 69.9590) |
| Luminance | 0.2131 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Azure
#007FFF
ΔE00 3.25
Cool Blue
#4984B8
ΔE00 4.02
Windows Blue
#3778BF
ΔE00 4.11
Clear Blue
#247AFD
ΔE00 4.26
Steel Blue
#4682B4
ΔE00 4.45
Dodger Blue
#3E82FC
ΔE00 4.49
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3580DB #DB9035
analogous
#35D3DB #3580DB #3D35DB
triadic
#3580DB #DB3580 #80DB35
tetradic
#3580DB #DB35D3 #DB9035 #35DB3D
square
#3580DB #DB35D3 #DB9035 #35DB3D
split-complementary
#3580DB #DB3D35 #D3DB35
monochromatic
#17467F #2062B3 #3580DB #69A1E4 #9DC1EE
Accessibility & contrast
On white
3.99
#3580DB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.26
#3580DB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3580DB
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3580DB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3580DB | 1.00 | 3.99 | 5.26 | 5.26 |
| #FFFFFF | 3.99 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.26 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.26 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5387DF
Deuteranopia (green-blind)
#3678D9
Tritanopia (blue-blind)
#0095A3
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #3580db; /* rgb */ color: rgb(53, 128, 219); /* oklch */ color: oklch(59.9% 0.157 255.2);
Tailwind
colors: {
custom: {
50: '#83a4e7',
500: '#3580db',
950: '#000000',
},
}SCSS
$custom: #3580db; $custom-light: #83a4e7; $custom-dark: #000000;
JSON
{
"hex": "#3580db",
"rgb": {
"r": 53,
"g": 128,
"b": 219
},
"hsl": {
"h": 212.892,
"s": 69.748,
"l": 53.333
},
"oklch": {
"l": 0.59925,
"c": 0.15714,
"h": 255.2
},
"luminance": 0.2131
}Semantic roles & 50–950 ramp
primary
#3580DB
secondary
#DAB992
accent
#9C3BED
background
#F8FAFE
surface
#F0F3FC
border
#CBCDD5
text
#0C0F16
muted
#7D7F84