#3583B2#3583B2
#3583B2 is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.3% C 0.104 H 238.8°. Best body text is #000000 at 5.04:1 contrast (WCAG AA passes).
Color values
| HEX | #3583B2 |
|---|---|
| RGB | rgb(53, 131, 178) |
| HSL | hsl(203, 54%, 45%) |
| HSV | hsv(203, 70%, 70%) |
| CMYK | cmyk(70.2%, 26.4%, 0%, 30.2%) |
| CIE-LAB | lab(52.06, -8.30, -31.71) |
| CIE-LCH | lch(52.06, 32.78, 255.33°) |
| OKLab | oklab(58.28% -0.0541 -0.0894) |
| OKLCH | oklch(58.28% 0.104 238.8) |
| XYZ | xyz(17.6173, 20.2019, 45.0817) |
| Luminance | 0.2020 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 2.96
Cool Blue
#4984B8
ΔE00 3.59
Water Blue
#0E87CC
ΔE00 3.72
Nice Blue
#107AB0
ΔE00 3.86
Cerulean (survey)
#0485D1
ΔE00 4.33
Off Blue
#5684AE
ΔE00 4.55
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3583B2 #B26435
analogous
#35B2A2 #3583B2 #3544B2
triadic
#3583B2 #B23583 #83B235
tetradic
#3583B2 #A235B2 #B26435 #44B235
square
#3583B2 #A235B2 #B26435 #44B235
split-complementary
#3583B2 #B23544 #B2A235
monochromatic
#193E54 #276083 #3583B2 #57A1CD #86BBDB
Accessibility & contrast
On white
4.17
#3583B2 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.04
#3583B2 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3583B2
5.04:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3583B2 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3583B2 | 1.00 | 4.17 | 5.04 | 5.04 |
| #FFFFFF | 4.17 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.04 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.04 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6D83B4
Deuteranopia (green-blind)
#5C77B1
Tritanopia (blue-blind)
#008F93
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #3583b2; /* rgb */ color: rgb(53, 131, 178); /* oklch */ color: oklch(58.3% 0.104 238.8);
Tailwind
colors: {
custom: {
50: '#7ba6c9',
500: '#3583b2',
950: '#000000',
},
}SCSS
$custom: #3583b2; $custom-light: #7ba6c9; $custom-dark: #000000;
JSON
{
"hex": "#3583b2",
"rgb": {
"r": 53,
"g": 131,
"b": 178
},
"hsl": {
"h": 202.56,
"s": 54.113,
"l": 45.294
},
"oklch": {
"l": 0.58283,
"c": 0.10447,
"h": 238.8
},
"luminance": 0.20204
}Semantic roles & 50–950 ramp
primary
#3583B2
secondary
#C5997E
accent
#824ADD
background
#F8FAFC
surface
#EFF4F8
border
#CACED1
text
#0B0F13
muted
#7C7F82