#319DB5#319DB5
#319DB5 is a light, moderate cyan. Relative luminance 0.281; OKLCH L 64.6% C 0.101 H 216.0°. Best body text is #000000 at 6.62:1 contrast (WCAG AA passes).
Color values
| HEX | #319DB5 |
|---|---|
| RGB | rgb(49, 157, 181) |
| HSL | hsl(191, 57%, 45%) |
| HSV | hsv(191, 73%, 71%) |
| CMYK | cmyk(72.9%, 13.3%, 0%, 29%) |
| CIE-LAB | lab(59.98, -22.09, -21.20) |
| CIE-LCH | lch(59.98, 30.62, 223.83°) |
| OKLab | oklab(64.62% -0.0814 -0.0591) |
| OKLCH | oklch(64.62% 0.101 216) |
| XYZ | xyz(21.6606, 28.1006, 47.9895) |
| Luminance | 0.2810 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Turquoise Blue
#06B1C4
ΔE00 6.70
Teal Blue
#01889F
ΔE00 7.48
Cadetblue
#5F9EA0
ΔE00 8.17
Greyblue
#77A1B5
ΔE00 8.76
Dirty Blue
#3F829D
ΔE00 9.80
Bluegrey
#85A3B2
ΔE00 11.44
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#319DB5 #B54931
analogous
#31B58B #319DB5 #315BB5
triadic
#319DB5 #B5319D #9DB531
tetradic
#319DB5 #8B31B5 #B54931 #5BB531
square
#319DB5 #8B31B5 #B54931 #5BB531
split-complementary
#319DB5 #B5315B #B58B31
monochromatic
#174955 #247385 #319DB5 #53BAD0 #83CDDD
Accessibility & contrast
On white
3.17
#319DB5 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.62
#319DB5 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #319DB5
6.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##319DB5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##319DB5 | 1.00 | 3.17 | 6.62 | 6.62 |
| #FFFFFF | 3.17 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.62 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.62 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#8D98B6
Deuteranopia (green-blind)
#7A8BB5
Tritanopia (blue-blind)
#00A6A4
Achromatopsia (no color)
#919191
Design tokens & code
CSS
--color: #319db5; /* rgb */ color: rgb(49, 157, 181); /* oklch */ color: oklch(64.6% 0.101 216.0);
Tailwind
colors: {
custom: {
50: '#7cbacb',
500: '#319db5',
950: '#000000',
},
}SCSS
$custom: #319db5; $custom-light: #7cbacb; $custom-dark: #000000;
JSON
{
"hex": "#319db5",
"rgb": {
"r": 49,
"g": 157,
"b": 181
},
"hsl": {
"h": 190.909,
"s": 57.391,
"l": 45.098
},
"oklch": {
"l": 0.64621,
"c": 0.10063,
"h": 216
},
"luminance": 0.28103
}Semantic roles & 50–950 ramp
primary
#319DB5
secondary
#C7897B
accent
#6347E1
background
#F8FBFC
surface
#EFF6F8
border
#CAD0D1
text
#0B1113
muted
#7C8082