#155666#155666
#155666 is a dark, moderate cyan. Relative luminance 0.078; OKLCH L 42.1% C 0.068 H 218.3°. Best body text is #FFFFFF at 8.22:1 contrast (WCAG AA passes).
Color values
| HEX | #155666 |
|---|---|
| RGB | rgb(21, 86, 102) |
| HSL | hsl(192, 66%, 24%) |
| HSV | hsv(192, 79%, 40%) |
| CMYK | cmyk(79.4%, 15.7%, 0%, 60%) |
| CIE-LAB | lab(33.51, -13.93, -14.98) |
| CIE-LCH | lch(33.51, 20.46, 227.10°) |
| OKLab | oklab(42.12% -0.053 -0.0419) |
| OKLCH | oklch(42.12% 0.068 218.3) |
| XYZ | xyz(6.0343, 7.7736, 13.7502) |
| Luminance | 0.0777 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Petrol
#005F6A
ΔE00 4.85
Deep Teal
#00555A
ΔE00 6.27
Darkslategray
#2F4F4F
ΔE00 7.83
Dark Teal
#014D4E
ΔE00 8.51
Dark Slate Blue
#214761
ΔE00 9.30
Dark Grey Blue
#29465B
ΔE00 9.35
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#155666 #662515
analogous
#15664E #155666 #152E66
triadic
#155666 #661556 #566615
tetradic
#155666 #4E1566 #662515 #2E6615
square
#155666 #4E1566 #662515 #2E6615
split-complementary
#155666 #66152E #664E15
monochromatic
#051519 #0B2B33 #155666 #1F8199 #2AACCC
Accessibility & contrast
On white
8.22
#155666 on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.55
#155666 on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #155666
8.22:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##155666 | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##155666 | 1.00 | 8.22 | 2.55 | 8.22 |
| #FFFFFF | 8.22 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.55 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.22 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4C5367
Deuteranopia (green-blind)
#414B66
Tritanopia (blue-blind)
#005B5B
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #155666; /* rgb */ color: rgb(21, 86, 102); /* oklch */ color: oklch(42.1% 0.068 218.3);
Tailwind
colors: {
custom: {
50: '#618591',
500: '#155666',
950: '#000000',
},
}SCSS
$custom: #155666; $custom-light: #618591; $custom-dark: #000000;
JSON
{
"hex": "#155666",
"rgb": {
"r": 21,
"g": 86,
"b": 102
},
"hsl": {
"h": 191.852,
"s": 65.854,
"l": 24.118
},
"oklch": {
"l": 0.42118,
"c": 0.06756,
"h": 218.3
},
"luminance": 0.07774
}Semantic roles & 50–950 ramp
primary
#155666
secondary
#9D4D3A
accent
#613FE9
background
#F6F8F8
surface
#EBEFF0
border
#C6CACB
text
#050B0C
muted
#7A7C7D