#155F7A#155F7A
#155F7A is a mid, moderate cyan. Relative luminance 0.097; OKLCH L 45.5% C 0.081 H 228.0°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).
Color values
| HEX | #155F7A |
|---|---|
| RGB | rgb(21, 95, 122) |
| HSL | hsl(196, 71%, 28%) |
| HSV | hsv(196, 83%, 48%) |
| CMYK | cmyk(82.8%, 22.1%, 0%, 52.2%) |
| CIE-LAB | lab(37.39, -11.79, -21.40) |
| CIE-LCH | lch(37.39, 24.43, 241.15°) |
| OKLab | oklab(45.52% -0.0542 -0.0602) |
| OKLCH | oklch(45.52% 0.081 228) |
| XYZ | xyz(7.9129, 9.7480, 19.8731) |
| Luminance | 0.0975 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Ugly Blue
#31668A
ΔE00 5.92
Peacock Blue
#016795
ΔE00 6.24
Sea Blue
#047495
ΔE00 7.42
Ocean Blue (survey)
#03719C
ΔE00 7.62
Deep Sea Blue
#015482
ΔE00 7.66
Petrol
#005F6A
ΔE00 7.82
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#155F7A #7A3015
analogous
#157A62 #155F7A #152C7A
triadic
#155F7A #7A155F #5F7A15
tetradic
#155F7A #62157A #7A3015 #2C7A15
square
#155F7A #62157A #7A3015 #2C7A15
split-complementary
#155F7A #7A152C #7A6215
monochromatic
#04141A #0C3646 #155F7A #1E88AE #2EADDB
Accessibility & contrast
On white
7.12
#155F7A on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.95
#155F7A on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #155F7A
7.12:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##155F7A | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##155F7A | 1.00 | 7.12 | 2.95 | 7.12 |
| #FFFFFF | 7.12 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.95 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.12 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#515D7B
Deuteranopia (green-blind)
#43547A
Tritanopia (blue-blind)
#006768
Achromatopsia (no color)
#585858
Design tokens & code
CSS
--color: #155f7a; /* rgb */ color: rgb(21, 95, 122); /* oklch */ color: oklch(45.5% 0.081 228.0);
Tailwind
colors: {
custom: {
50: '#658ca0',
500: '#155f7a',
950: '#000000',
},
}SCSS
$custom: #155f7a; $custom-light: #658ca0; $custom-dark: #000000;
JSON
{
"hex": "#155f7a",
"rgb": {
"r": 21,
"g": 95,
"b": 122
},
"hsl": {
"h": 196.04,
"s": 70.629,
"l": 28.039
},
"oklch": {
"l": 0.4552,
"c": 0.08097,
"h": 228
},
"luminance": 0.09749
}Semantic roles & 50–950 ramp
primary
#155F7A
secondary
#AF5A3B
accent
#6A3AED
background
#F6F8F9
surface
#EBF0F2
border
#C6CBCC
text
#060C0E
muted
#7A7D7E