#277F9F#277F9F
#277F9F is a mid, moderate cyan. Relative luminance 0.181; OKLCH L 56.0% C 0.094 H 226.9°. Best body text is #000000 at 4.62:1 contrast (WCAG AA passes).
Color values
| HEX | #277F9F |
|---|---|
| RGB | rgb(39, 127, 159) |
| HSL | hsl(196, 61%, 39%) |
| HSV | hsv(196, 75%, 62%) |
| CMYK | cmyk(75.5%, 20.1%, 0%, 37.6%) |
| CIE-LAB | lab(49.63, -14.62, -24.52) |
| CIE-LCH | lch(49.63, 28.54, 239.20°) |
| OKLab | oklab(55.96% -0.0644 -0.0688) |
| OKLCH | oklch(55.96% 0.094 226.9) |
| XYZ | xyz(14.6815, 18.1115, 35.5163) |
| Luminance | 0.1811 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Dirty Blue
#3F829D
ΔE00 2.41
Cerulean
#007BA7
ΔE00 3.69
Sea Blue
#047495
ΔE00 4.37
Ocean
#017B92
ΔE00 4.78
Teal Blue
#01889F
ΔE00 5.67
Ocean Blue (survey)
#03719C
ΔE00 6.27
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#277F9F #9F4727
analogous
#279F83 #277F9F #27439F
triadic
#277F9F #9F277F #7F9F27
tetradic
#277F9F #83279F #9F4727 #439F27
square
#277F9F #83279F #9F4727 #439F27
split-complementary
#277F9F #9F2743 #9F8327
monochromatic
#0F303D #1B586E #277F9F #36A5CE #67BBDA
Accessibility & contrast
On white
4.54
#277F9F on #FFFFFF
AA ✓AA large ✓AAA ✗
On black
4.62
#277F9F on #000000
AA ✓AA large ✓AAA ✗
Best text color
#000000 on #277F9F
4.62:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##277F9F | #FFFFFF | #000000 | ##000000 |
|---|---|---|---|---|
| ##277F9F | 1.00 | 4.54 | 4.62 | 4.62 |
| #FFFFFF | 4.54 | 1.00 | 21.00 | 21.00 |
| #000000 | 4.62 | 21.00 | 1.00 | 1.00 |
| ##000000 | 4.62 | 21.00 | 1.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#6E7DA1
Deuteranopia (green-blind)
#5E719F
Tritanopia (blue-blind)
#00888A
Achromatopsia (no color)
#767676
Design tokens & code
CSS
--color: #277f9f; /* rgb */ color: rgb(39, 127, 159); /* oklch */ color: oklch(56.0% 0.094 226.9);
Tailwind
colors: {
custom: {
50: '#73a4bb',
500: '#277f9f',
950: '#000000',
},
}SCSS
$custom: #277f9f; $custom-light: #73a4bb; $custom-dark: #000000;
JSON
{
"hex": "#277f9f",
"rgb": {
"r": 39,
"g": 127,
"b": 159
},
"hsl": {
"h": 196,
"s": 60.606,
"l": 38.824
},
"oklch": {
"l": 0.55964,
"c": 0.0942,
"h": 226.9
},
"luminance": 0.18113
}Semantic roles & 50–950 ramp
primary
#277F9F
secondary
#C07B62
accent
#6F44E4
background
#F7FAFB
surface
#EDF4F6
border
#C8CED0
text
#090F12
muted
#7B7F81