#278AA5#278AA5
#278AA5 is a mid, moderate cyan. Relative luminance 0.213; OKLCH L 59.0% C 0.096 H 220.5°. Best body text is #000000 at 5.27:1 contrast (WCAG AA passes).
Color values
| HEX | #278AA5 |
|---|---|
| RGB | rgb(39, 138, 165) |
| HSL | hsl(193, 62%, 40%) |
| HSV | hsv(193, 76%, 65%) |
| CMYK | cmyk(76.4%, 16.4%, 0%, 35.3%) |
| CIE-LAB | lab(53.30, -18.59, -22.34) |
| CIE-LCH | lch(53.30, 29.06, 230.24°) |
| OKLab | oklab(58.99% -0.0731 -0.0625) |
| OKLCH | oklch(58.99% 0.096 220.5) |
| XYZ | xyz(16.7139, 21.3229, 38.8249) |
| Luminance | 0.2132 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Teal Blue
#01889F
ΔE00 2.71
Dirty Blue
#3F829D
ΔE00 3.91
Ocean
#017B92
ΔE00 6.17
Cerulean
#007BA7
ΔE00 7.86
Sea Blue
#047495
ΔE00 8.61
Greyish Blue
#5E819D
ΔE00 9.57
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#278AA5 #A54227
analogous
#27A581 #278AA5 #274BA5
triadic
#278AA5 #A5278A #8AA527
tetradic
#278AA5 #8127A5 #A54227 #4BA527
square
#278AA5 #8127A5 #A54227 #4BA527
split-complementary
#278AA5 #A5274B #A58127
monochromatic
#103742 #1B6174 #278AA5 #39B0D0 #6AC4DC
Accessibility & contrast
On white
3.99
#278AA5 on #FFFFFF
AA ✗AA large ✓AAA ✗
On black
5.27
#278AA5 on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #278AA5
5.27:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##278AA5 | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##278AA5 | 1.00 | 3.99 | 5.27 | 5.27 |
| #FFFFFF | 3.99 | 1.00 | 21.00 | 21.00 |
| #000000 | 5.27 | 21.00 | 1.00 | 1.00 |
| ##000000 | 5.27 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#7A86A6
Deuteranopia (green-blind)
#697AA5
Tritanopia (blue-blind)
#009393
Achromatopsia (no color)
#7F7F7F
Design tokens & code
CSS
--color: #278aa5; /* rgb */ color: rgb(39, 138, 165); /* oklch */ color: oklch(59.0% 0.096 220.5);
Tailwind
colors: {
custom: {
50: '#75acbf',
500: '#278aa5',
950: '#000000',
},
}SCSS
$custom: #278aa5; $custom-light: #75acbf; $custom-dark: #000000;
JSON
{
"hex": "#278aa5",
"rgb": {
"r": 39,
"g": 138,
"b": 165
},
"hsl": {
"h": 192.857,
"s": 61.765,
"l": 40
},
"oklch": {
"l": 0.58987,
"c": 0.09619,
"h": 220.5
},
"luminance": 0.21325
}Semantic roles & 50–950 ramp
primary
#278AA5
secondary
#C27966
accent
#6643E5
background
#F7FAFB
surface
#EEF4F7
border
#C9CED0
text
#0A1012
muted
#7C7F81