#175B8F#175B8F
#175B8F is a mid, moderate cyan. Relative luminance 0.096; OKLCH L 45.7% C 0.107 H 246.8°. Best body text is #FFFFFF at 7.17:1 contrast (WCAG AA passes).
Color values
| HEX | #175B8F |
|---|---|
| RGB | rgb(23, 91, 143) |
| HSL | hsl(206, 72%, 33%) |
| HSV | hsv(206, 84%, 56%) |
| CMYK | cmyk(83.9%, 36.4%, 0%, 43.9%) |
| CIE-LAB | lab(37.20, -0.99, -34.49) |
| CIE-LCH | lch(37.20, 34.51, 268.36°) |
| OKLab | oklab(45.73% -0.0422 -0.0982) |
| OKLCH | oklch(45.73% 0.107 246.8) |
| XYZ | xyz(9.0504, 9.6464, 27.3662) |
| Luminance | 0.0965 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Light Navy Blue
#2E5A88
ΔE00 2.58
Deep Sea Blue
#015482
ΔE00 3.03
Light Navy
#155084
ΔE00 3.91
Denim (survey)
#3B638C
ΔE00 4.26
Dusk Blue
#26538D
ΔE00 4.32
Ugly Blue
#31668A
ΔE00 4.90
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#175B8F #8F4B17
analogous
#178F87 #175B8F #171F8F
triadic
#175B8F #8F175B #5B8F17
tetradic
#175B8F #87178F #8F4B17 #1F8F17
square
#175B8F #87178F #8F4B17 #1F8F17
split-complementary
#175B8F #8F171F #8F8717
monochromatic
#061826 #0F395A #175B8F #1F7DC4 #409BE0
Accessibility & contrast
On white
7.17
#175B8F on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.93
#175B8F on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #175B8F
7.17:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##175B8F | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##175B8F | 1.00 | 7.17 | 2.93 | 7.17 |
| #FFFFFF | 7.17 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.93 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.17 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#425D91
Deuteranopia (green-blind)
#31538E
Tritanopia (blue-blind)
#00686E
Achromatopsia (no color)
#585858
Design tokens & code
CSS
--color: #175b8f; /* rgb */ color: rgb(23, 91, 143); /* oklch */ color: oklch(45.7% 0.107 246.8);
Tailwind
colors: {
custom: {
50: '#6a89b0',
500: '#175b8f',
950: '#000000',
},
}SCSS
$custom: #175b8f; $custom-light: #6a89b0; $custom-dark: #000000;
JSON
{
"hex": "#175b8f",
"rgb": {
"r": 23,
"g": 91,
"b": 143
},
"hsl": {
"h": 206,
"s": 72.289,
"l": 32.549
},
"oklch": {
"l": 0.45731,
"c": 0.10691,
"h": 246.8
},
"luminance": 0.09647
}Semantic roles & 50–950 ramp
primary
#175B8F
secondary
#C17841
accent
#8839EF
background
#F6F8FA
surface
#ECEFF5
border
#C7CACF
text
#070B10
muted
#7A7C7F