#4991BB#4991BB
#4991BB is a light, moderate cyan. Relative luminance 0.253; OKLCH L 62.8% C 0.096 H 236.7°. Best body text is #000000 at 6.05:1 contrast (WCAG AA passes).
Color values
| HEX | #4991BB |
|---|---|
| RGB | rgb(73, 145, 187) |
| HSL | hsl(202, 46%, 51%) |
| HSV | hsv(202, 61%, 73%) |
| CMYK | cmyk(61%, 22.5%, 0%, 26.7%) |
| CIE-LAB | lab(57.32, -9.79, -28.63) |
| CIE-LCH | lch(57.32, 30.26, 251.12°) |
| OKLab | oklab(62.78% -0.0528 -0.0802) |
| OKLCH | oklch(62.78% 0.096 236.7) |
| XYZ | xyz(21.8393, 25.2530, 50.7275) |
| Luminance | 0.2525 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dusty Blue
#5A86AD
ΔE00 5.45
Cool Blue
#4984B8
ΔE00 5.72
Water Blue
#0E87CC
ΔE00 5.75
Off Blue
#5684AE
ΔE00 5.93
Steel Blue
#4682B4
ΔE00 6.03
Cerulean (survey)
#0485D1
ΔE00 6.69
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#4991BB #BB7349
analogous
#49BBAC #4991BB #4958BB
triadic
#4991BB #BB4991 #91BB49
tetradic
#4991BB #AC49BB #BB7349 #58BB49
square
#4991BB #AC49BB #BB7349 #58BB49
split-complementary
#4991BB #BB4958 #BBAC49
monochromatic
#254D64 #366F91 #4991BB #76ACCC #A2C7DC
Accessibility & contrast
On white
3.47
#4991BB on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
6.05
#4991BB on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #4991BB
6.05:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##4991BB | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##4991BB | 1.00 | 3.47 | 6.05 | 6.05 |
| #FFFFFF | 3.47 | 1.00 | 21.00 | 21.00 |
| #000000 | 6.05 | 21.00 | 1.00 | 1.00 |
| ##000000 | 6.05 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7D90BD
Deuteranopia (green-blind)
#6E84BA
Tritanopia (blue-blind)
#009C9F
Achromatopsia (no color)
#8A8A8A
Design tokens & code
CSS
--color: #4991bb; /* rgb */ color: rgb(73, 145, 187); /* oklch */ color: oklch(62.8% 0.096 236.7);
Tailwind
colors: {
custom: {
50: '#86b1cf',
500: '#4991bb',
950: '#000000',
},
}SCSS
$custom: #4991bb; $custom-light: #86b1cf; $custom-dark: #000000;
JSON
{
"hex": "#4991bb",
"rgb": {
"r": 73,
"g": 145,
"b": 187
},
"hsl": {
"h": 202.105,
"s": 45.6,
"l": 50.98
},
"oklch": {
"l": 0.62775,
"c": 0.09597,
"h": 236.7
},
"luminance": 0.25255
}Semantic roles & 50–950 ramp
primary
#4991BB
secondary
#C9A997
accent
#8353D5
background
#F8FAFC
surface
#F0F5F9
border
#CBCFD2
text
#0C1014
muted
#7D7F82