#288FBA#288FBA
#288FBA is a mid, moderate cyan. Relative luminance 0.236; OKLCH L 61.2% C 0.111 H 231.1°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).
Color values
| HEX | #288FBA |
|---|---|
| RGB | rgb(40, 143, 186) |
| HSL | hsl(198, 65%, 44%) |
| HSV | hsv(198, 78%, 73%) |
| CMYK | cmyk(78.5%, 23.1%, 0%, 27.1%) |
| CIE-LAB | lab(55.72, -13.97, -30.61) |
| CIE-LCH | lch(55.72, 33.65, 245.47°) |
| OKLab | oklab(61.22% -0.0696 -0.0862) |
| OKLCH | oklch(61.22% 0.111 231.1) |
| XYZ | xyz(19.5569, 23.6388, 49.9769) |
| Luminance | 0.2364 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dirty Blue
#3F829D
ΔE00 6.09
Water Blue
#0E87CC
ΔE00 6.53
Steel Blue
#4682B4
ΔE00 7.27
Cool Blue
#4984B8
ΔE00 7.37
Dusty Blue
#5A86AD
ΔE00 7.47
Cerulean
#007BA7
ΔE00 7.51
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#288FBA #BA5328
analogous
#28BA9C #288FBA #2846BA
triadic
#288FBA #BA288F #8FBA28
tetradic
#288FBA #9C28BA #BA5328 #46BA28
square
#288FBA #9C28BA #BA5328 #46BA28
split-complementary
#288FBA #BA2846 #BA9C28
monochromatic
#124255 #1D6888 #288FBA #48ADD8 #7AC4E2
Accessibility & contrast
On white
3.67
#288FBA on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.73
#288FBA on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #288FBA
5.73:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##288FBA | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##288FBA | 1.00 | 3.67 | 5.73 | 5.73 |
| #FFFFFF | 3.67 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.73 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.73 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#798DBC
Deuteranopia (green-blind)
#667FB9
Tritanopia (blue-blind)
#009B9D
Achromatopsia (no color)
#858585
Design tokens & code
CSS
--color: #288fba; /* rgb */ color: rgb(40, 143, 186); /* oklch */ color: oklch(61.2% 0.111 231.1);
Tailwind
colors: {
custom: {
50: '#79afcf',
500: '#288fba',
950: '#000000',
},
}SCSS
$custom: #288fba; $custom-light: #79afcf; $custom-dark: #000000;
JSON
{
"hex": "#288fba",
"rgb": {
"r": 40,
"g": 143,
"b": 186
},
"hsl": {
"h": 197.671,
"s": 64.602,
"l": 44.314
},
"oklch": {
"l": 0.6122,
"c": 0.11079,
"h": 231.1
},
"luminance": 0.23641
}Semantic roles & 50–950 ramp
primary
#288FBA
secondary
#CA8D73
accent
#7240E8
background
#F8FAFC
surface
#EFF4F9
border
#CACED2
text
#0B1013
muted
#7C7F82