#317BBE#317BBE
#317BBE is a mid, vivid cyan. Relative luminance 0.185; OKLCH L 56.9% C 0.127 H 249.2°. Best body text is #000000 at 4.71:1 contrast (WCAG AA passes).
Color values
| HEX | #317BBE |
|---|---|
| RGB | rgb(49, 123, 190) |
| HSL | hsl(209, 59%, 47%) |
| HSV | hsv(209, 74%, 75%) |
| CMYK | cmyk(74.2%, 35.3%, 0%, 25.5%) |
| CIE-LAB | lab(50.14, 0.13, -41.65) |
| CIE-LCH | lch(50.14, 41.65, 270.18°) |
| OKLab | oklab(56.92% -0.045 -0.1184) |
| OKLCH | oklch(56.92% 0.127 249.2) |
| XYZ | xyz(17.6403, 18.5346, 51.3530) |
| Luminance | 0.1854 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 1.76
Bluish
#2976BB
ΔE00 1.89
Steel Blue
#4682B4
ΔE00 3.23
Cool Blue
#4984B8
ΔE00 3.73
Flat Blue
#3C73A8
ΔE00 3.78
Cerulean (survey)
#0485D1
ΔE00 4.47
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#317BBE #BE7431
analogous
#31BEBB #317BBE #3134BE
triadic
#317BBE #BE317B #7BBE31
tetradic
#317BBE #BB31BE #BE7431 #34BE31
square
#317BBE #BB31BE #BE7431 #34BE31
split-complementary
#317BBE #BE3134 #BEBB31
monochromatic
#183C5D #245C8D #317BBE #5899D4 #89B7E1
Accessibility & contrast
On white
4.46
#317BBE on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.71
#317BBE on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #317BBE
4.71:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##317BBE | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##317BBE | 1.00 | 4.46 | 4.71 | 4.71 |
| #FFFFFF | 4.46 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.71 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.71 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#5C7EC1
Deuteranopia (green-blind)
#4871BD
Tritanopia (blue-blind)
#008B93
Achromatopsia (no color)
#777777
Design tokens & code
CSS
--color: #317bbe; /* rgb */ color: rgb(49, 123, 190); /* oklch */ color: oklch(56.9% 0.127 249.2);
Tailwind
colors: {
custom: {
50: '#7ca0d2',
500: '#317bbe',
950: '#000000',
},
}SCSS
$custom: #317bbe; $custom-light: #7ca0d2; $custom-dark: #000000;
JSON
{
"hex": "#317bbe",
"rgb": {
"r": 49,
"g": 123,
"b": 190
},
"hsl": {
"h": 208.511,
"s": 58.996,
"l": 46.863
},
"oklch": {
"l": 0.5692,
"c": 0.12667,
"h": 249.2
},
"luminance": 0.18537
}Semantic roles & 50–950 ramp
primary
#317BBE
secondary
#CAA480
accent
#9046E2
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0E14
muted
#7C7E82