#3383B5#3383B5
#3383B5 is a mid, moderate cyan. Relative luminance 0.203; OKLCH L 58.4% C 0.109 H 240.0°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).
Color values
| HEX | #3383B5 |
|---|---|
| RGB | rgb(51, 131, 181) |
| HSL | hsl(203, 56%, 45%) |
| HSV | hsv(203, 72%, 71%) |
| CMYK | cmyk(71.8%, 27.6%, 0%, 29%) |
| CIE-LAB | lab(52.14, -7.55, -33.32) |
| CIE-LCH | lch(52.14, 34.17, 257.23°) |
| OKLab | oklab(58.37% -0.0543 -0.094) |
| OKLCH | oklch(58.37% 0.109 240) |
| XYZ | xyz(17.8188, 20.2706, 46.6806) |
| Luminance | 0.2027 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Steel Blue
#4682B4
ΔE00 2.67
Water Blue
#0E87CC
ΔE00 3.17
Cool Blue
#4984B8
ΔE00 3.26
Cerulean (survey)
#0485D1
ΔE00 3.71
Nice Blue
#107AB0
ΔE00 3.80
Off Blue
#5684AE
ΔE00 4.50
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3383B5 #B56533
analogous
#33B5A6 #3383B5 #3342B5
triadic
#3383B5 #B53383 #83B533
tetradic
#3383B5 #A633B5 #B56533 #42B533
square
#3383B5 #A633B5 #B56533 #42B533
split-complementary
#3383B5 #B53342 #B5A633
monochromatic
#183E56 #266085 #3383B5 #56A1CF #86BBDD
Accessibility & contrast
On white
4.15
#3383B5 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.05
#3383B5 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3383B5
5.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3383B5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3383B5 | 1.00 | 4.15 | 5.05 | 5.05 |
| #FFFFFF | 4.15 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.05 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.05 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6C83B7
Deuteranopia (green-blind)
#5A77B4
Tritanopia (blue-blind)
#009094
Achromatopsia (no color)
#7C7C7C
Design tokens & code
CSS
--color: #3383b5; /* rgb */ color: rgb(51, 131, 181); /* oklch */ color: oklch(58.4% 0.109 240.0);
Tailwind
colors: {
custom: {
50: '#7ba6cb',
500: '#3383b5',
950: '#000000',
},
}SCSS
$custom: #3383b5; $custom-light: #7ba6cb; $custom-dark: #000000;
JSON
{
"hex": "#3383b5",
"rgb": {
"r": 51,
"g": 131,
"b": 181
},
"hsl": {
"h": 203.077,
"s": 56.034,
"l": 45.49
},
"oklch": {
"l": 0.58373,
"c": 0.10859,
"h": 240
},
"luminance": 0.20273
}Semantic roles & 50–950 ramp
primary
#3383B5
secondary
#C6997D
accent
#8248DF
background
#F8FAFC
surface
#EFF4F8
border
#CACED1
text
#0B0F13
muted
#7C7F82