#288AA4#288AA4
#288AA4 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.0% C 0.095 H 219.8°. Best body text is #000000 at 5.26:1 contrast (WCAG AA passes).
Color values
| HEX | #288AA4 |
|---|---|
| RGB | rgb(40, 138, 164) |
| HSL | hsl(193, 61%, 40%) |
| HSV | hsv(193, 76%, 64%) |
| CMYK | cmyk(75.6%, 15.9%, 0%, 35.7%) |
| CIE-LAB | lab(53.28, -18.80, -21.79) |
| CIE-LCH | lch(53.28, 28.78, 229.20°) |
| OKLab | oklab(58.97% -0.0731 -0.0609) |
| OKLCH | oklch(58.97% 0.095 219.8) |
| XYZ | xyz(16.6616, 21.3064, 38.3492) |
| Luminance | 0.2131 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Teal Blue
#01889F
ΔE00 2.47
Dirty Blue
#3F829D
ΔE00 4.04
Ocean
#017B92
ΔE00 6.08
Cerulean
#007BA7
ΔE00 8.10
Sea Blue
#047495
ΔE00 8.70
Greyish Blue
#5E819D
ΔE00 9.72
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#288AA4 #A44228
analogous
#28A480 #288AA4 #284CA4
triadic
#288AA4 #A4288A #8AA428
tetradic
#288AA4 #8028A4 #A44228 #4CA428
square
#288AA4 #8028A4 #A44228 #4CA428
split-complementary
#288AA4 #A4284C #A48028
monochromatic
#103742 #1C6173 #288AA4 #3AB0CF #6BC4DB
Accessibility & contrast
On white
3.99
#288AA4 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.26
#288AA4 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #288AA4
5.26:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##288AA4 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##288AA4 | 1.00 | 3.99 | 5.26 | 5.26 |
| #FFFFFF | 3.99 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.26 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.26 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7A86A5
Deuteranopia (green-blind)
#697AA4
Tritanopia (blue-blind)
#009392
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #288aa4; /* rgb */ color: rgb(40, 138, 164); /* oklch */ color: oklch(59.0% 0.095 219.8);
Tailwind
colors: {
custom: {
50: '#75acbf',
500: '#288aa4',
950: '#000000',
},
}SCSS
$custom: #288aa4; $custom-light: #75acbf; $custom-dark: #000000;
JSON
{
"hex": "#288aa4",
"rgb": {
"r": 40,
"g": 138,
"b": 164
},
"hsl": {
"h": 192.581,
"s": 60.784,
"l": 40
},
"oklch": {
"l": 0.58966,
"c": 0.09514,
"h": 219.8
},
"luminance": 0.21308
}Semantic roles & 50–950 ramp
primary
#288AA4
secondary
#C17966
accent
#6544E4
background
#F7FAFB
surface
#EEF4F7
border
#C9CED0
text
#0A1012
muted
#7C7F81