#17557C#17557C
#17557C is a dark, moderate cyan. Relative luminance 0.081; OKLCH L 43.1% C 0.089 H 241.5°. Best body text is #FFFFFF at 7.99:1 contrast (WCAG AA passes).
Color values
| HEX | #17557C |
|---|---|
| RGB | rgb(23, 85, 124) |
| HSL | hsl(203, 69%, 29%) |
| HSV | hsv(203, 81%, 49%) |
| CMYK | cmyk(81.5%, 31.5%, 0%, 51.4%) |
| CIE-LAB | lab(34.26, -4.70, -27.51) |
| CIE-LCH | lch(34.26, 27.91, 260.31°) |
| OKLab | oklab(43.07% -0.0424 -0.078) |
| OKLCH | oklch(43.07% 0.089 241.5) |
| XYZ | xyz(7.2385, 8.1335, 20.2533) |
| Luminance | 0.0813 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Deep Sea Blue
#015482
ΔE00 1.41
Light Navy
#155084
ΔE00 3.64
Light Navy Blue
#2E5A88
ΔE00 4.24
Dusk Blue
#26538D
ΔE00 5.30
Dark Slate Blue
#214761
ΔE00 5.70
Prussian Blue
#004577
ΔE00 5.96
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#17557C #7C3E17
analogous
#177C71 #17557C #17237C
triadic
#17557C #7C1755 #557C17
tetradic
#17557C #71177C #7C3E17 #237C17
square
#17557C #71177C #7C3E17 #237C17
split-complementary
#17557C #7C1723 #7C7117
monochromatic
#05121A #0D3248 #17557C #2178B0 #349AD9
Accessibility & contrast
On white
7.99
#17557C on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.63
#17557C on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #17557C
7.99:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##17557C | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##17557C | 1.00 | 7.99 | 2.63 | 7.99 |
| #FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.63 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 7.99 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#43567E
Deuteranopia (green-blind)
#354C7B
Tritanopia (blue-blind)
#005F63
Achromatopsia (no color)
#515151
Design tokens & code
CSS
--color: #17557c; /* rgb */ color: rgb(23, 85, 124); /* oklch */ color: oklch(43.1% 0.089 241.5);
Tailwind
colors: {
custom: {
50: '#6584a2',
500: '#17557c',
950: '#000000',
},
}SCSS
$custom: #17557c; $custom-light: #6584a2; $custom-dark: #000000;
JSON
{
"hex": "#17557c",
"rgb": {
"r": 23,
"g": 85,
"b": 124
},
"hsl": {
"h": 203.168,
"s": 68.707,
"l": 28.824
},
"oklch": {
"l": 0.43074,
"c": 0.08875,
"h": 241.5
},
"luminance": 0.08134
}Semantic roles & 50–950 ramp
primary
#17557C
secondary
#B16A3E
accent
#803CEC
background
#F6F8FA
surface
#EBEFF3
border
#C6CACD
text
#060A0F
muted
#7A7C7F