#17566B#17566B
#17566B is a dark, moderate cyan. Relative luminance 0.079; OKLCH L 42.4% C 0.070 H 224.8°. Best body text is #FFFFFF at 8.14:1 contrast (WCAG AA passes).
Color values
| HEX | #17566B |
|---|---|
| RGB | rgb(23, 86, 107) |
| HSL | hsl(195, 65%, 25%) |
| HSV | hsv(195, 79%, 42%) |
| CMYK | cmyk(78.5%, 19.6%, 0%, 58%) |
| CIE-LAB | lab(33.77, -11.82, -17.71) |
| CIE-LCH | lch(33.77, 21.29, 236.28°) |
| OKLab | oklab(42.42% -0.0499 -0.0496) |
| OKLCH | oklch(42.42% 0.07 224.8) |
| XYZ | xyz(6.3339, 7.8985, 15.0978) |
| Luminance | 0.0790 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Petrol
#005F6A
ΔE00 6.88
Dark Slate Blue
#214761
ΔE00 7.47
Dark Grey Blue
#29465B
ΔE00 7.81
Deep Sea Blue
#015482
ΔE00 8.68
Deep Teal
#00555A
ΔE00 8.70
Ugly Blue
#31668A
ΔE00 8.86
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#17566B #6B2C17
analogous
#176B56 #17566B #172C6B
triadic
#17566B #6B1756 #566B17
tetradic
#17566B #56176B #6B2C17 #2C6B17
square
#17566B #56176B #6B2C17 #2C6B17
split-complementary
#17566B #6B172C #6B5617
monochromatic
#051419 #0C2E39 #17566B #227E9D #2DA7D0
Accessibility & contrast
On white
8.14
#17566B on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.58
#17566B on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #17566B
8.14:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##17566B | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##17566B | 1.00 | 8.14 | 2.58 | 8.14 |
| #FFFFFF | 8.14 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.58 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.14 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#4A546C
Deuteranopia (green-blind)
#3F4C6B
Tritanopia (blue-blind)
#005C5D
Achromatopsia (no color)
#4F4F4F
Design tokens & code
CSS
--color: #17566b; /* rgb */ color: rgb(23, 86, 107); /* oklch */ color: oklch(42.4% 0.070 224.8);
Tailwind
colors: {
custom: {
50: '#628595',
500: '#17566b',
950: '#000000',
},
}SCSS
$custom: #17566b; $custom-light: #628595; $custom-dark: #000000;
JSON
{
"hex": "#17566b",
"rgb": {
"r": 23,
"g": 86,
"b": 107
},
"hsl": {
"h": 195,
"s": 64.615,
"l": 25.49
},
"oklch": {
"l": 0.42415,
"c": 0.07037,
"h": 224.8
},
"luminance": 0.07899
}Semantic roles & 50–950 ramp
primary
#17566B
secondary
#A1563D
accent
#6A40E8
background
#F6F8F9
surface
#EBEFF1
border
#C6CACB
text
#060B0D
muted
#7A7C7E