#3B7BB7#3B7BB7
#3B7BB7 is a mid, moderate cyan. Relative luminance 0.185; OKLCH L 56.9% C 0.114 H 249.2°. Best body text is #000000 at 4.70:1 contrast (WCAG AA passes).
Color values
| HEX | #3B7BB7 |
|---|---|
| RGB | rgb(59, 123, 183) |
| HSL | hsl(209, 51%, 47%) |
| HSV | hsv(209, 68%, 72%) |
| CMYK | cmyk(67.8%, 32.8%, 0%, 28.2%) |
| CIE-LAB | lab(50.11, -0.89, -37.64) |
| CIE-LCH | lch(50.11, 37.65, 268.64°) |
| OKLab | oklab(56.88% -0.0405 -0.1066) |
| OKLCH | oklch(56.88% 0.114 249.2) |
| XYZ | xyz(17.4306, 18.5128, 47.4453) |
| Luminance | 0.1852 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Windows Blue
#3778BF
ΔE00 1.66
Bluish
#2976BB
ΔE00 2.11
Steel Blue
#4682B4
ΔE00 2.86
Flat Blue
#3C73A8
ΔE00 3.31
Cool Blue
#4984B8
ΔE00 3.45
Dull Blue
#49759C
ΔE00 4.21
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3B7BB7 #B7773B
analogous
#3BB7B5 #3B7BB7 #3B3DB7
triadic
#3B7BB7 #B73B7B #7BB73B
tetradic
#3B7BB7 #B53BB7 #B7773B #3DB73B
square
#3B7BB7 #B53BB7 #B7773B #3DB73B
split-complementary
#3B7BB7 #B73B3D #B7B53B
monochromatic
#1D3D5A #2C5C89 #3B7BB7 #6399CD #91B7DC
Accessibility & contrast
On white
4.47
#3B7BB7 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
4.70
#3B7BB7 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3B7BB7
4.70:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3B7BB7 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3B7BB7 | 1.00 | 4.47 | 4.70 | 4.70 |
| #FFFFFF | 4.47 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.70 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.70 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#607EBA
Deuteranopia (green-blind)
#4F72B6
Tritanopia (blue-blind)
#008991
Achromatopsia (no color)
#777777
Design tokens & code
CSS
--color: #3b7bb7; /* rgb */ color: rgb(59, 123, 183); /* oklch */ color: oklch(56.9% 0.114 249.2);
Tailwind
colors: {
custom: {
50: '#7ea0cd',
500: '#3b7bb7',
950: '#000000',
},
}SCSS
$custom: #3b7bb7; $custom-light: #7ea0cd; $custom-dark: #000000;
JSON
{
"hex": "#3b7bb7",
"rgb": {
"r": 59,
"g": 123,
"b": 183
},
"hsl": {
"h": 209.032,
"s": 51.24,
"l": 47.451
},
"oklch": {
"l": 0.56876,
"c": 0.11403,
"h": 249.2
},
"luminance": 0.18515
}Semantic roles & 50–950 ramp
primary
#3B7BB7
secondary
#C6A687
accent
#924DDB
background
#F8F9FC
surface
#EFF2F9
border
#CACCD2
text
#0B0E13
muted
#7C7E82