#3B91BF#3B91BF
#3B91BF is a light, moderate cyan. Relative luminance 0.249; OKLCH L 62.5% C 0.107 H 235.6°. Best body text is #000000 at 5.99:1 contrast (WCAG AA passes).
Color values
| HEX | #3B91BF |
|---|---|
| RGB | rgb(59, 145, 191) |
| HSL | hsl(201, 53%, 49%) |
| HSV | hsv(201, 69%, 75%) |
| CMYK | cmyk(69.1%, 24.1%, 0%, 25.1%) |
| CIE-LAB | lab(57.02, -10.88, -31.41) |
| CIE-LCH | lch(57.02, 33.24, 250.88°) |
| OKLab | oklab(62.46% -0.0604 -0.0883) |
| OKLCH | oklch(62.46% 0.107 235.6) |
| XYZ | xyz(21.3293, 24.9399, 52.9699) |
| Luminance | 0.2494 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Water Blue
#0E87CC
ΔE00 5.33
Cool Blue
#4984B8
ΔE00 6.14
Dusty Blue
#5A86AD
ΔE00 6.33
Steel Blue
#4682B4
ΔE00 6.34
Cerulean (survey)
#0485D1
ΔE00 6.45
Off Blue
#5684AE
ΔE00 6.67
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#3B91BF #BF693B
analogous
#3BBFAB #3B91BF #3B4FBF
triadic
#3B91BF #BF3B91 #91BF3B
tetradic
#3B91BF #AB3BBF #BF693B #4FBF3B
square
#3B91BF #AB3BBF #BF693B #4FBF3B
split-complementary
#3B91BF #BF3B4F #BFAB3B
monochromatic
#1E4A61 #2D6E90 #3B91BF #67ACD0 #96C5DF
Accessibility & contrast
On white
3.51
#3B91BF on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.99
#3B91BF on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #3B91BF
5.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##3B91BF | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##3B91BF | 1.00 | 3.51 | 5.99 | 5.99 |
| #FFFFFF | 3.51 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.99 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.99 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7B90C1
Deuteranopia (green-blind)
#6983BE
Tritanopia (blue-blind)
#009DA1
Achromatopsia (no color)
#898989
Design tokens & code
CSS
--color: #3b91bf; /* rgb */ color: rgb(59, 145, 191); /* oklch */ color: oklch(62.5% 0.107 235.6);
Tailwind
colors: {
custom: {
50: '#80b1d2',
500: '#3b91bf',
950: '#000000',
},
}SCSS
$custom: #3b91bf; $custom-light: #80b1d2; $custom-dark: #000000;
JSON
{
"hex": "#3b91bf",
"rgb": {
"r": 59,
"g": 145,
"b": 191
},
"hsl": {
"h": 200.909,
"s": 52.8,
"l": 49.02
},
"oklch": {
"l": 0.62456,
"c": 0.10699,
"h": 235.6
},
"luminance": 0.24942
}Semantic roles & 50–950 ramp
primary
#3B91BF
secondary
#CAA18C
accent
#7E4CDC
background
#F8FAFC
surface
#F0F5F9
border
#CBCFD2
text
#0B1014
muted
#7C7F82