#174B8E#174B8E
#174B8E is a dark, vivid cyan. Relative luminance 0.072; OKLCH L 41.8% C 0.124 H 256.7°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).
Color values
| HEX | #174B8E |
|---|---|
| RGB | rgb(23, 75, 142) |
| HSL | hsl(214, 72%, 32%) |
| HSV | hsv(214, 84%, 56%) |
| CMYK | cmyk(83.8%, 47.2%, 0%, 44.3%) |
| CIE-LAB | lab(32.18, 9.13, -41.89) |
| CIE-LCH | lch(32.18, 42.88, 282.30°) |
| OKLab | oklab(41.8% -0.0285 -0.1203) |
| OKLCH | oklch(41.8% 0.124 256.7) |
| XYZ | xyz(7.7501, 7.1664, 26.5607) |
| Luminance | 0.0717 (WCAG relative) |
| Temperature | cool |
| Family | cyan |
Closest named colors
Cobalt (survey)
#1E488F
ΔE00 1.71
Dusk Blue
#26538D
ΔE00 2.65
Light Navy
#155084
ΔE00 3.09
Darkish Blue
#014182
ΔE00 3.38
Twilight Blue
#0A437A
ΔE00 3.47
Prussian Blue
#004577
ΔE00 4.05
Perceptual scales
Shades
Tints
Tones
OKLCH scale
Color harmonies
complementary
#174B8E #8E5A17
analogous
#17868E #174B8E #1F178E
triadic
#174B8E #8E174B #4B8E17
tetradic
#174B8E #8E1786 #8E5A17 #178E1F
square
#174B8E #8E1786 #8E5A17 #178E1F
split-complementary
#174B8E #8E1F17 #868E17
monochromatic
#061325 #0E2F59 #174B8E #2067C3 #3F86E0
Accessibility & contrast
On white
8.63
#174B8E on #FFFFFF
AA ✓AA large ✓AAA ✓
On black
2.43
#174B8E on #000000
AA ✗AA large ✗AAA ✗
Best text color
#FFFFFF on #174B8E
8.63:1 — WCAG AA (normal text) passes
Contrast matrix
| fg \ bg | ##174B8E | #FFFFFF | #000000 | ##FFFFFF |
|---|---|---|---|---|
| ##174B8E | 1.00 | 8.63 | 2.43 | 8.63 |
| #FFFFFF | 8.63 | 1.00 | 21.00 | 1.00 |
| #000000 | 2.43 | 21.00 | 1.00 | 21.00 |
| ##FFFFFF | 8.63 | 1.00 | 21.00 | 1.00 |
Color blindness preview
Protanopia (red-blind)
#275191
Deuteranopia (green-blind)
#07478D
Tritanopia (blue-blind)
#005B65
Achromatopsia (no color)
#4C4C4C
Design tokens & code
CSS
--color: #174b8e; /* rgb */ color: rgb(23, 75, 142); /* oklch */ color: oklch(41.8% 0.124 256.7);
Tailwind
colors: {
custom: {
50: '#697caf',
500: '#174b8e',
950: '#000000',
},
}SCSS
$custom: #174b8e; $custom-light: #697caf; $custom-dark: #000000;
JSON
{
"hex": "#174b8e",
"rgb": {
"r": 23,
"g": 75,
"b": 142
},
"hsl": {
"h": 213.782,
"s": 72.121,
"l": 32.353
},
"oklch": {
"l": 0.41796,
"c": 0.12363,
"h": 256.7
},
"luminance": 0.07167
}Semantic roles & 50–950 ramp
primary
#174B8E
secondary
#C08840
accent
#9F39EF
background
#F6F7FA
surface
#ECEEF5
border
#C7C9CF
text
#070910
muted
#7A7B7F