#318BB7#318BB7
#318BB7 is a mid, moderate cyan. Relative luminance 0.225; OKLCH L 60.3% C 0.107 H 234.0°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).
Color values
| HEX | #318BB7 |
|---|---|
| RGB | rgb(49, 139, 183) |
| HSL | hsl(200, 58%, 45%) |
| HSV | hsv(200, 73%, 72%) |
| CMYK | cmyk(73.2%, 24%, 0%, 28.2%) |
| CIE-LAB | lab(54.59, -11.69, -30.65) |
| CIE-LCH | lch(54.59, 32.81, 249.12°) |
| OKLab | oklab(60.33% -0.0627 -0.0863) |
| OKLCH | oklch(60.33% 0.107 234) |
| XYZ | xyz(19.0431, 22.5349, 48.1366) |
| Luminance | 0.2254 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Water Blue
#0E87CC
ΔE00 5.04
Steel Blue
#4682B4
ΔE00 5.53
Dirty Blue
#3F829D
ΔE00 5.59
Cool Blue
#4984B8
ΔE00 5.70
Dusty Blue
#5A86AD
ΔE00 6.11
Cerulean (survey)
#0485D1
ΔE00 6.19
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#318BB7 #B75D31
analogous
#31B7A0 #318BB7 #3148B7
triadic
#318BB7 #B7318B #8BB731
tetradic
#318BB7 #A031B7 #B75D31 #48B731
square
#318BB7 #A031B7 #B75D31 #48B731
split-complementary
#318BB7 #B73148 #B7A031
monochromatic
#174256 #246687 #318BB7 #54A8D1 #84C1DE
Accessibility & contrast
On white
3.81
#318BB7 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.51
#318BB7 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #318BB7
5.51:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##318BB7 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##318BB7 | 1.00 | 3.81 | 5.51 | 5.51 |
| #FFFFFF | 3.81 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.51 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.51 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#758AB9
Deuteranopia (green-blind)
#637DB6
Tritanopia (blue-blind)
#00979A
Achromatopsia (no color)
#838383
Design tokens & code
CSS
--color: #318bb7; /* rgb */ color: rgb(49, 139, 183); /* oklch */ color: oklch(60.3% 0.107 234.0);
Tailwind
colors: {
custom: {
50: '#7baccc',
500: '#318bb7',
950: '#000000',
},
}SCSS
$custom: #318bb7; $custom-light: #7baccc; $custom-dark: #000000;
JSON
{
"hex": "#318bb7",
"rgb": {
"r": 49,
"g": 139,
"b": 183
},
"hsl": {
"h": 199.701,
"s": 57.759,
"l": 45.49
},
"oklch": {
"l": 0.60332,
"c": 0.10662,
"h": 234
},
"luminance": 0.22537
}Semantic roles & 50–950 ramp
primary
#318BB7
secondary
#C8957C
accent
#7947E1
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0B1013
muted
#7C7F82